RF-DAC Performance Characteristics

Zynq UltraScale+ RFSoC Data Sheet: DC and AC Switching Characteristics (DS926)

Document ID
DS926
Release Date
2024-05-31
Revision
1.13 English
Table 1. RF-DAC Performance Characteristics for ZU2xDR Devices–High Linearity Mode
Symbol Parameter Comments/Conditions 1 20 mA Mode 32 mA Mode Units
Min Typ 2 Max Min Typ 2 Max
ACLR Adjacent channel leakage ratio FC = 240 MHz, single 3.84 MHz QPSK, PAR = 7.6 dB –82 –78 –81 –76 dBc
FC = 1.9 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –80 –79 dBc
FC = 2.4 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –78 –76 dBc
FC = 3.5 GHz, single 18 MHz 16QAM

PAR = 8.6 dB

(by temperature range)

E or I –72 –67 –68 –63.5 dBc
M –72 –66 –68 –62 dBc
Adjacent channel leakage ratio using internal PLL to sample RF-DAC with FREF = 256 MHz FC = 240 MHz, single 3.84 MHz QPSK, PAR = 7.6 dB –81 –79 dBc
FC = 1.9 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –69 –69 dBc
FC = 2.4 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –67 –67 dBc
FC = 3.5 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –66.5 –65 dBc
OOB 3 Spurious out-of-band emissions FC = 240 MHz, single 3.84 MHz QPSK, PAR = 7.6 dB –85 –79 dBm/MHz
FC = 1.9 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –84 –79 dBm/MHz
FC = 2.4 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –83 –79 dBm/MHz
FC = 3.5 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –81 –77 dBm/MHz
NSD Noise spectral density averaged across the 1st Nyquist zone FOUT = 240 MHz CW at 0 dBFS –158 –151 –149 dBm/Hz
FOUT = 1.9 GHz CW at 0 dBFS –157 –150 dBm/Hz
FOUT = 2.4 GHz CW at 0 dBFS –157 –149 dBm/Hz
FOUT = 240 MHz CW at –10 dBFS –163 –160 –158 –153 dBm/Hz
FOUT = 1.9 GHz CW at –10 dBFS –158 –150 dBm/Hz
FOUT = 2.4 GHz CW at –10 dBFS –157 –148 dBm/Hz
Noise spectral density averaged across the 1st Nyquist zone using internal PLL to sample RF-DAC with FREF = 256 MHz FOUT = 240 MHz CW at 0 dBFS –158 –148 dBm/Hz
FOUT = 1.9 GHz CW at 0 dBFS –157 –149 dBm/Hz
FOUT = 2.4 GHz CW at 0 dBFS –156 –149 dBm/Hz
FOUT = 240 MHz CW at –10 dBFS –162 –158 dBm/Hz
FOUT = 1.9 GHz CW at –10 dBFS –158 –149 dBm/Hz
FOUT = 2.4 GHz CW at –10 dBFS –157 –148 dBm/Hz
Noise spectral density averaged across the 2nd Nyquist zone FOUT = 3.5 GHz CW at 0 dBFS –156 –150 –151 dBm/Hz
FOUT = 3.5 GHz CW at –10 dBFS –157 –154.6 –153 dBm/Hz
Noise spectral density averaged across the 2nd Nyquist zone using internal PLL to sample RF-DAC with FREF = 256 MHz FOUT = 3.5 GHz CW at 0 dBFS –155 –151 dBm/Hz
FOUT = 3.5 GHz CW at –10 dBFS –157 –152 dBm/Hz
SFDR Spurious free dynamic range excluding second- and third-order harmonic distortion and Fs/2 FOUT = 240 MHz CW at 0 dBFS 80 84 83.5 88 dBc
FOUT = 1.9 GHz CW at 0 dBFS 84 83 dBc
FOUT = 2.4 GHz CW at 0 dBFS 82 78 dBc
FOUT = 3.5 GHz CW at 0 dBFS 63 72 65 74 dBc
FOUT = 240 MHz CW at –10 dBFS 71.5 77 72 79 dBc
FOUT = 1.9 GHz CW at –10 dBFS 78 79 dBc
FOUT = 2.4 GHz CW at –10 dBFS 76 77 dBc
FOUT = 3.5 GHz CW at –10 dBFS 63 69 64 72 dBc
FOUT = 2.4 GHz CW at –15 dBFS 68 70 dBc
FOUT = 3.5 GHz CW at –15 dBFS 63 70 dBc
HD2 Second-order harmonic distortion FOUT = 240 MHz CW at 0 dBFS –85 –81 dBc
FOUT = 1.9 GHz CW at 0 dBFS –77 –77 dBc
FOUT = 2.4 GHz CW at 0 dBFS –76 –74 dBc
FOUT = 3.5 GHz CW at 0 dBFS –59 –65 dBc
FOUT = 240 MHz CW at –10 dBFS –81 –85 dBc
FOUT = 1.9 GHz CW at –10 dBFS –75 –75 dBc
FOUT = 2.4 GHz CW at –10 dBFS –75 –74 dBc
FOUT = 3.5 GHz CW at –10 dBFS –59 –62 dBc
HD3 Third-order harmonic distortion FOUT = 240 MHz CW at 0 dBFS –86 –78 –79 –70 dBc
FOUT = 1.9 GHz CW at 0 dBFS –76 –73 dBc
FOUT = 2.4 GHz CW at 0 dBFS –71 –68 dBc
FOUT = 3.5 GHz CW at 0 dBFS –64 –57 –59 –53 dBc
FOUT = 240 MHz CW at –10 dBFS –84 –79 –86 –81 dBc
FOUT = 1.9 GHz CW at –10 dBFS –82 –73 dBc
FOUT = 2.4 GHz CW at –10 dBFS –75 –70 dBc
FOUT = 3.5 GHz CW at –10 dBFS –78 –72 –68 –68 dBc
FOUT = 2.4 GHz CW at –15 dBFS –73 –67 dBc
FOUT = 3.5 GHz CW at –15 dBFS –71 –67 dBc
IM3 Two-tone, third-order intermodulation distortion

FOUT = 240 MHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–90 –86 –92 –80 dBc

FOUT = 1.9 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–78.5 –78 dBc

FOUT = 2.4 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–71 –69.5 dBc

FOUT = 3.5 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–68.5 –61 –62 –56 dBc

FOUT = 240 MHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–85 –80 –86 –77 dBc

FOUT = 1.9 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–82 –84 dBc

FOUT = 2.4 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–78.5 –80 dBc

FOUT = 3.5 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–78 –73 –82 –78 dBc

FOUT = 2.4 GHz

F1, F2 at –21 dBFS, Δf = 20 MHz

–73 –77 dBc

FOUT = 3.5 GHz

F1, F2 at –21 dBFS, Δf = 20 MHz

–73 –77 dBc
  1. RF-DAC sampling rate is 6.4 GS/s using external sampling clock, DAC in mixed-mode for FOUT > 3.2 GHz.
  2. Typical values are specified at nominal voltage, Tj = 25°C.
  3. Excludes HD2, HD3.
Table 2. RF-DAC Performance Characteristics for ZU39DR Devices–High Linearity Mode
Symbol Parameter Comments/Conditions 1 20 mA Mode 32 mA Mode Units
Min Typ 2 Max Min Typ 2 Max
ACLR Adjacent channel leakage ratio FC = 240 MHz, single 3.84 MHz QPSK, PAR = 7.6 dB –82 –78 –81 –76 dBc
FC = 1.9 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –80 –79 dBc
FC = 2.4 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –78 –76 dBc
FC = 3.5 GHz, single 18 MHz 16QAM

PAR = 8.6 dB

–72 –67 –68 –63.5 dBc
FC = 4.2 GHz, single 18 MHz 16QAM

PAR = 8.6 dB

–70.3 –71 dBc
FC = 4.9 GHz, single 18 MHz 16QAM

PAR = 8.6 dB

–69.5 –70.2 dBc
Adjacent channel leakage ratio using internal PLL to sample RF-DAC with FREF = 256 MHz FC = 240 MHz, single 3.84 MHz QPSK, PAR = 7.6 dB –81 –79 dBc
FC = 1.9 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –69 –69 dBc
FC = 2.4 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –67 –67 dBc
FC = 3.5 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –66.5 –65 dBc
FC = 4.2 GHz, single 18 MHz 16QAM

PAR = 8.6 dB

–65.8 –65.5 dBc
FC = 4.9 GHz, single 18 MHz 16QAM

PAR = 8.6 dB

–64.4 –64.3 dBc
OOB 3 Spurious out-of-band emissions FC = 1.9 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –84 –79 dBm/MHz
FC = 2.4 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –83 –79 dBm/MHz
FC = 3.5 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –81 –77 dBm/MHz
FC = 4.2 GHz, single 18 MHz 16QAM

PAR = 8.6 dB

–81 –77 dBm/MHz
FC = 4.9 GHz, single 18 MHz 16QAM

PAR = 8.6 dB

–81 –76.4 dBm/MHz
NSD Noise spectral density averaged across the 1st Nyquist zone FOUT = 240 MHz CW at 0 dBFS –158 –151 –149 dBm/Hz
FOUT = 1.9 GHz CW at 0 dBFS –157 –150 dBm/Hz
FOUT = 2.4 GHz CW at 0 dBFS –157 –149 dBm/Hz
FOUT = 240 MHz CW at –10 dBFS –163 –160 –158 –153 dBm/Hz
FOUT = 1.9 GHz CW at –10 dBFS –158 –150 dBm/Hz
FOUT = 2.4 GHz CW at –10 dBFS –157 –148 dBm/Hz
Noise spectral density averaged across the 1st Nyquist zone using internal PLL to sample RF-DAC with FREF = 256 MHz FOUT = 240 MHz CW at 0 dBFS –158 –148 dBm/Hz
FOUT = 1.9 GHz CW at 0 dBFS –157 –149 dBm/Hz
FOUT = 2.4 GHz CW at 0 dBFS –156 –149 dBm/Hz
FOUT = 240 MHz CW at –10 dBFS –162 –158 dBm/Hz
FOUT = 1.9 GHz CW at –10 dBFS –158 –149 dBm/Hz
FOUT = 2.4 GHz CW at –10 dBFS –157 –148 dBm/Hz
Noise spectral density averaged across the 2nd Nyquist zone FOUT = 3.5 GHz CW at 0 dBFS –156 –150 –151 dBm/Hz
FOUT = 3.5 GHz CW at –10 dBFS –157 –154.6 –153 dBm/Hz
FOUT = 4.2 GHz CW at 0 dBFS –156 –151 dBm/Hz
FOUT = 4.2 GHz CW at –10 dBFS –157 –153   dBm/Hz
FOUT = 4.9 GHz CW at 0 dBFS –156 –151 dBm/Hz
FOUT = 4.9 GHz CW at –10 dBFS –157 –153 dBm/Hz
Noise spectral density averaged across the 2nd Nyquist zone using internal PLL to sample RF-DAC with FREF = 256 MHz FOUT = 3.5 GHz CW at 0 dBFS –155 –151 dBm/Hz
FOUT = 3.5 GHz CW at –10 dBFS –157 –152 dBm/Hz
FOUT = 4.2 GHz CW at 0 dBFS –155 –151 dBm/Hz
FOUT = 4.2 GHz CW at –10 dBFS –157 –152 dBm/Hz
FOUT = 4.9 GHz CW at 0 dBFS –155 –151 dBm/Hz
FOUT = 4.9 GHz CW at –10 dBFS –157 –152 dBm/Hz
SFDR Spurious free dynamic range excluding second- and third-order harmonic distortion and Fs/2 FOUT = 240 MHz CW at 0 dBFS 80 84 83.5 88 dBc
FOUT = 1.9 GHz CW at 0 dBFS 84 83 dBc
FOUT = 2.4 GHz CW at 0 dBFS 82 78 dBc
FOUT = 3.5 GHz CW at 0 dBFS 63 72 65 74 dBc
FOUT = 4.2 GHz CW at 0 dBFS 76.4 79.2 dBc
FOUT = 4.9 GHz CW at 0 dBFS 74.6 78 dBc
FOUT = 240 MHz CW at –10 dBFS 71.5 77 72 79 dBc
FOUT = 1.9 GHz CW at –10 dBFS 78 79 dBc
FOUT = 2.4 GHz CW at –10 dBFS 76 77 dBc
FOUT = 3.5 GHz CW at –10 dBFS 63 69 64 72 dBc
FOUT = 4.2 GHz CW at –10 dBFS 69.4 73.4 dBc
FOUT = 4.9 GHz CW at –10 dBFS 69.3 71.5 dBc
FOUT = 2.4 GHz CW at –15 dBFS 68 70 dBc
FOUT = 3.5 GHz CW at –15 dBFS 63 70 dBc
FOUT = 4.2 GHz CW at –15 dBFS 63.9 68.1 dBc
FOUT = 4.9 GHz CW at –15 dBFS 60.6 64.6 dBc
HD2 Second-order harmonic distortion FOUT = 240 MHz CW at 0 dBFS –85 –81 dBc
FOUT = 2.4 GHz CW at 0 dBFS –76 –74 dBc
FOUT = 3.5 GHz CW at 0 dBFS –59 –65 dBc
FOUT = 4.2 GHz CW at 0 dBFS –64.3 –64.3 dBc
FOUT = 4.9 GHz CW at 0 dBFS –67.5 –66 dBc
FOUT = 240 MHz CW at –10 dBFS –81 –85 dBc
FOUT = 1.9 GHz CW at –10 dBFS –75 –75 dBc
FOUT = 2.4 GHz CW at –10 dBFS –75 –74 dBc
FOUT = 3.5 GHz CW at –10 dBFS –59 –62 dBc
FOUT = 4.2 GHz CW at –10 dBFS –66.6 –68.4 dBc
FOUT = 4.9 GHz CW at –10 dBFS –71.3 –70.5 dBc
HD3 Third-order harmonic distortion FOUT = 1.9 GHz CW at 0 dBFS –76 –73 dBc
FOUT = 2.4 GHz CW at 0 dBFS –71 –68 dBc
FOUT = 3.5 GHz CW at 0 dBFS –64 –57 –59 –53 dBc
FOUT = 4.2 GHz CW at 0 dBFS –63.2 –61.2 dBc
FOUT = 4.9 GHz CW at 0 dBFS –62.4 –61.7 dBc
FOUT = 240 MHz CW at –10 dBFS –84 –79 –86 –81 dBc
FOUT = 1.9 GHz CW at –10 dBFS –82 –73 dBc
FOUT = 2.4 GHz CW at –10 dBFS –75 –70 dBc
FOUT = 3.5 GHz CW at –10 dBFS –78 –72 –68 –68 dBc
FOUT = 4.2 GHz CW at –10 dBFS –76.3 –80 dBc
FOUT = 4.9 GHz CW at –10 dBFS –73.7 –77 dBc
FOUT = 2.4 GHz CW at –15 dBFS –73 –67 dBc
FOUT = 3.5 GHz CW at –15 dBFS –71 –67 dBc
FOUT = 4.2 GHz CW at –15 dBFS –68.6 –72.1 dBc
FOUT = 4.9 GHz CW at –15 dBFS –64.5 –68.1 dBc
IM3 Two-tone, third-order intermodulation distortion

FOUT = 1.9 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–78.5 –78 dBc

FOUT = 2.4 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–71 –69.5 dBc

FOUT = 3.5 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–68.5 –61 –62 –56 dBc

FOUT = 4.2 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–74.7 –64.7 dBc

FOUT = 4.9 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–73.9 –66.4 dBc

FOUT = 240 MHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–85 –80 –86 –77 dBc

FOUT = 1.9 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–80.5 –84 dBc

FOUT = 2.4 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–78.5 –80 dBc

FOUT = 3.5 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–78 –73 –82 –78 dBc

FOUT = 4.2 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–74.7 –78.9 dBc

FOUT = 4.9 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–73.9 –78.1 dBc

FOUT = 2.4 GHz

F1, F2 at –21 dBFS, Δf = 20 MHz

–73 –77 dBc

FOUT = 3.5 GHz

F1, F2 at –21 dBFS, Δf = 20 MHz

–73 –77 dBc

FOUT = 4.2 GHz

F1, F2 at –21 dBFS, Δf = 20 MHz

–67.3 –71.5 dBc

FOUT = 4.9 GHz

F1, F2 at –21 dBFS, Δf = 20 MHz

–63.7 –68.6 dBc
  1. RF-DAC sampling rate is 6.4 GS/s using external sampling clock, DAC in mixed-mode for FOUT > 3.2 GHz.
  2. Typical values are specified at nominal voltage, Tj = 25°C.
  3. Excludes HD2, HD3.
Table 3. RF-DAC Performance Characteristics for ZU2xDR Devices–Low Noise Mode
Symbol Parameter Comments/Conditions 1 20 mA Mode 32 mA Mode Units
Min Typ 2 Max Min Typ 2 Max
ACLR Adjacent channel leakage ratio FC = 240 MHz, single 3.84 MHz QPSK, PAR = 7.6 dB (by temperature range) E or I –83 –78 –81 –76 dBc
M –83 –77 –81 –76 dBc
FC = 1.9 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –79 –79 dBc
FC = 2.4 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –76 –78 dBc
FC = 3.5 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –71 –65 –70 –64 dBc
Adjacent channel leakage ratio using internal PLL to sample RF-DAC with FREF = 256 MHz FC = 240 MHz, single 3.84 MHz QPSK, PAR = 7.6 dB –81 –79 dBc
FC = 1.9 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –69 –69 dBc
FC = 2.4 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –67 –67 dBc
FC = 3.5 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –66 –65 dBc
OOB 3 Spurious out-of-band emissions FC = 240 MHz, single 3.84 MHz QPSK, PAR = 7.6 dB –84 –78 dBm/MHz
FC = 1.9 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –82 –77 dBm/MHz
FC = 2.4 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –81 –76 dBm/MHz
FC = 3.5 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –82 –77 dBm/MHz
NSD Noise spectral density averaged across the 1st Nyquist zone FOUT = 240 MHz CW at 0 dBFS –166 –163.5 –163 –160.5 dBm/Hz
FOUT = 1.9 GHz CW at 0 dBFS –162 –160 dBm/Hz
FOUT = 2.4 GHz CW at 0 dBFS –161 –159 dBm/Hz
FOUT = 240 MHz CW at –10 dBFS –165 –162.5 –165 –161.5 dBm/Hz
FOUT = 1.9 GHz CW at –10 dBFS –164 –163 dBm/Hz
FOUT = 2.4 GHz CW at –10 dBFS –164 –163 dBm/Hz
Noise spectral density averaged across the 1st Nyquist zone using internal PLL to sample RF-DAC with FREF = 256 MHz FOUT = 240 MHz CW at 0 dBFS –166 –165 dBm/Hz
FOUT = 1.9 GHz CW at 0 dBFS –161 –159 dBm/Hz
FOUT = 2.4 GHz CW at 0 dBFS –160 –158 dBm/Hz
FOUT = 240 MHz CW at –10 dBFS –165 –163 dBm/Hz
FOUT = 1.9 GHz CW at –10 dBFS –164 –162 dBm/Hz
FOUT = 2.4 GHz CW at –10 dBFS –163 –161 dBm/Hz
Noise spectral density averaged across the 2nd Nyquist zone FOUT = 3.5 GHz CW at 0 dBFS –158 –155.5 –156 –152.5 dBm/Hz
FOUT = 3.5 GHz

CW at –10 dBFS

(by temperature range)
E or I –159 –156.5 –159 –156 dBm/Hz
M –159 –156.5 –159 –155 dBm/Hz
Noise spectral density averaged across the 2nd Nyquist zone using internal PLL to sample RF-DAC with FREF = 256 MHz FOUT = 3.5 GHz CW at 0 dBFS –158 –156 dBm/Hz
FOUT = 3.5 GHz CW at –10 dBFS –159 –159 dBm/Hz
SFDR Spurious free dynamic range excluding second- and third-order harmonic distortion and Fs/2 FOUT = 240 MHz CW at 0 dBFS 68.5 77 66 74 dBc
FOUT = 1.9 GHz CW at 0 dBFS 76 74 dBc
FOUT = 2.4 GHz CW at 0 dBFS 73 71 dBc
FOUT = 3.5 GHz CW at 0 dBFS 61 69 60 68.5 dBc
FOUT = 240 MHz CW at –10 dBFS 65 74 65 73 dBc
FOUT = 1.9 GHz CW at –10 dBFS 73 73 dBc
FOUT = 2.4 GHz CW at –10 dBFS 71 70 dBc
FOUT = 3.5 GHz CW at –10 dBFS 64 64.5 dBc
FOUT = 2.4 GHz CW at –15 dBFS 66 65 dBc
FOUT = 3.5 GHz CW at –15 dBFS 58 60 dBc
HD2 Second-order harmonic distortion FOUT = 240 MHz CW at 0 dBFS –71 –64 dBc
FOUT = 1.9 GHz CW at 0 dBFS –67 –63 dBc
FOUT = 2.4 GHz CW at 0 dBFS –67 –63 dBc
FOUT = 3.5 GHz CW at 0 dBFS –57 –56 dBc
FOUT = 240 MHz CW at –10 dBFS –75 –67 dBc
FOUT = 1.9 GHz CW at –10 dBFS –64 –61 dBc
FOUT = 2.4 GHz CW at –10 dBFS –64 –61 dBc
FOUT = 3.5 GHz CW at –10 dBFS –58 –57 dBc
HD3 Third-order harmonic distortion FOUT = 240 MHz CW at 0 dBFS –82 –69.5 –79 –64 dBc
FOUT = 1.9 GHz CW at 0 dBFS –75 –71 dBc
FOUT = 2.4 GHz CW at 0 dBFS –70 –63 dBc
FOUT = 3.5 GHz CW at 0 dBFS –62 –55 –59.5 –54 dBc
FOUT = 240 MHz CW at –10 dBFS –76 –62 –73 –60 dBc
FOUT = 1.9 GHz CW at –10 dBFS –73 –67 dBc
FOUT = 2.4 GHz CW at –10 dBFS –68 –62.5 dBc
FOUT = 3.5 GHz CW at –10 dBFS –66 –55 –63 –52 dBc
FOUT = 2.4 GHz CW at –15 dBFS –67 –61 dBc
FOUT = 3.5 GHz CW at –15 dBFS –63 –61 dBc
IM3 Two-tone, third-order intermodulation distortion

FOUT = 240 MHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–84 –69 –82 –67 dBc

FOUT = 1.9 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–79 –77 dBc

FOUT = 2.4 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–73 –76 dBc

FOUT = 3.5 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–68 –60 –63 –56 dBc

FOUT = 240 MHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–79 –65 –72 –62 dBc

FOUT = 1.9 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–70 –69 dBc

FOUT = 2.4 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–67 –67 dBc

FOUT = 3.5 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–67 –57 –67 –56 dBc

FOUT = 2.4 GHz

F1, F2 at –21 dBFS, Δf = 20 MHz

–70 –70 dBc

FOUT = 3.5 GHz

F1, F2 at –21 dBFS, Δf = 20 MHz

–69 –65 dBc
  1. RF-DAC sampling rate is 6.4 GS/s using external sampling clock, DAC in mixed-mode for FOUT > 3.2 GHz.
  2. Typical values are specified at nominal voltage, Tj =25°C.
  3. Excludes HD2, HD3.
Table 4. RF-DAC Performance Characteristics for ZU39DR Devices–Low Noise Mode
Symbol Parameter Comments/Conditions 1 20 mA Mode 32 mA Mode Units
Min Typ 2 Max Min Typ 2 Max
ACLR Adjacent channel leakage ratio FC = 240 MHz, single 3.84 MHz QPSK, PAR = 7.6 dB –83 –78 –81 –76 dBc
FC = 1.9 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –79 –79 dBc
FC = 2.4 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –76 –78 dBc
FC = 3.5 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –71 –65 –70 –64 dBc
FC = 4.2 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –70.1 –71 dBc
FC = 4.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –69 –70.7 dBc
Adjacent channel leakage ratio using internal PLL to sample RF-DAC with FREF = 256 MHz FC = 240 MHz, single 3.84 MHz QPSK, PAR = 7.6 dB –81 –79 dBc
FC = 1.9 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –69 –69 dBc
FC = 2.4 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –67 –67 dBc
FC = 3.5 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –66 –65 dBc
FC = 4.2 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –65.4 –65.4 dBc
FC = 4.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –64.3 –64.4 dBc
OOB 3 Spurious out-of-band emissions FC = 240 MHz, single 3.84 MHz QPSK, PAR = 7.6 dB –84 –78 dBm/MHz
FC = 1.9 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –82 –77 dBm/MHz
FC = 2.4 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –81 –76 dBm/MHz
FC = 3.5 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –82 –77 dBm/MHz
FC = 4.2 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –82 –77 dBm/MHz
FC = 4.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –82 –77 dBm/MHz
NSD Noise spectral density averaged across the 1st Nyquist zone FOUT = 240 MHz CW at 0 dBFS –166 –163.5 –163 –160.5 dBm/Hz
FOUT = 1.9 GHz CW at 0 dBFS –162 –160 dBm/Hz
FOUT = 2.4 GHz CW at 0 dBFS –161 –159 dBm/Hz
FOUT = 240 MHz CW at –10 dBFS –165 –162.5 –165 –161.5 dBm/Hz
FOUT = 1.9 GHz CW at –10 dBFS –164 –163 dBm/Hz
FOUT = 2.4 GHz CW at –10 dBFS –164 –163 dBm/Hz
Noise spectral density averaged across the 1st Nyquist zone using internal PLL to sample RF-DAC with FREF = 256 MHz FOUT = 240 MHz CW at 0 dBFS –166 –165 dBm/Hz
FOUT = 1.9 GHz CW at 0 dBFS –161 –159 dBm/Hz
FOUT = 2.4 GHz CW at 0 dBFS –160 –158 dBm/Hz
FOUT = 240 MHz CW at –10 dBFS –165 –163 dBm/Hz
FOUT = 1.9 GHz CW at –10 dBFS –164 –162 dBm/Hz
FOUT = 2.4 GHz CW at –10 dBFS –163 –161 dBm/Hz
Noise spectral density averaged across the 2nd Nyquist zone FOUT = 3.5 GHz CW at 0 dBFS –158 –155.5 –156 –152.5 dBm/Hz
FOUT = 3.5 GHz CW at –10 dBFS –159 –156.5 –159 –156 dBm/Hz
FOUT = 4.2 GHz CW at 0 dBFS –158 –156 dBm/Hz
FOUT = 4.2 GHz CW at –10 dBFS –159 –159 dBm/Hz
FOUT = 4.9 GHz CW at 0 dBFS –158 –156 dBm/Hz
FOUT = 4.9 GHz CW at –10 dBFS –159 –159 dBm/Hz
Noise spectral density averaged across the 2nd Nyquist zone using internal PLL to sample RF-DAC with FREF = 256 MHz FOUT = 3.5 GHz CW at 0 dBFS –158 –156 dBm/Hz
FOUT = 3.5 GHz CW at –10 dBFS –159 –159 dBm/Hz
FOUT = 4.2 GHz CW at 0 dBFS –158 –156 dBm/Hz
FOUT = 4.2 GHz CW at –10 dBFS –159 –159 dBm/Hz
FOUT = 4.9 GHz CW at 0 dBFS –158 –156 dBm/Hz
FOUT = 4.9 GHz CW at –10 dBFS –159 –159 dBm/Hz
SFDR Spurious free dynamic range excluding second- and third-order harmonic distortion and Fs/2 FOUT = 240 MHz CW at 0 dBFS 68.5 77 66 74 dBc
FOUT = 1.9 GHz CW at 0 dBFS 76 74 dBc
FOUT = 2.4 GHz CW at 0 dBFS 73 71 dBc
FOUT = 3.5 GHz CW at 0 dBFS 61 69 60 68.5 dBc
FOUT = 4.2 GHz CW at 0 dBFS 70.6 70.4 dBc
FOUT = 4.9 GHz CW at 0 dBFS 70 69.2 dBc
FOUT = 240 MHz CW at –10 dBFS 65 74 65 73 dBc
FOUT = 1.9 GHz CW at –10 dBFS 73 73 dBc
FOUT = 2.4 GHz CW at –10 dBFS 71 70 dBc
FOUT = 3.5 GHz CW at –10 dBFS 64 64.5 dBc
FOUT = 4.2 GHz CW at –10 dBFS 64.5 63.2 dBc
FOUT = 4.9 GHz CW at –10 dBFS 64.1 64.2 dBc
FOUT = 2.4 GHz CW at –15 dBFS 66 65 dBc
FOUT = 3.5 GHz CW at –15 dBFS 58 60 dBc
FOUT = 4.2 GHz CW at –15 dBFS 62.5 63.8 dBc
FOUT = 4.9 GHz CW at –15 dBFS 58.9 60 dBc
HD2 Second-order harmonic distortion FOUT = 240 MHz CW at 0 dBFS –71 –64 dBc
FOUT = 1.9 GHz CW at 0 dBFS –67 –63 dBc
FOUT = 2.4 GHz CW at 0 dBFS –67 –63 dBc
FOUT = 3.5 GHz CW at 0 dBFS –57 –56 dBc
FOUT = 4.2 GHz CW at 0 dBFS –56.7 –54.7 dBc
FOUT = 4.9 GHz CW at 0 dBFS –59.5 –56.1 dBc
FOUT = 1.9 GHz CW at –10 dBFS –64 –61 dBc
FOUT = 2.4 GHz CW at –10 dBFS –64 –58 dBc
FOUT = 3.5 GHz CW at –10 dBFS –58 –57 dBc
FOUT = 4.2 GHz CW at –10 dBFS –59.1 –56.6 dBc
FOUT = 4.9 GHz CW at –10 dBFS –63.7 –59.6 dBc
HD3 Third-order harmonic distortion FOUT = 1.9 GHz CW at 0 dBFS –75 –71 dBc
FOUT = 2.4 GHz CW at 0 dBFS –70 –63 dBc
FOUT = 3.5 GHz CW at 0 dBFS –62 –55 –59.5 –54 dBc
FOUT = 4.2 GHz CW at 0 dBFS –62.8 –61.1 dBc
FOUT = 4.9 GHz CW at 0 dBFS –62.3 –61.6 dBc
FOUT = 240 MHz CW at –10 dBFS –76 –62 –73 –60 dBc
FOUT = 1.9 GHz CW at –10 dBFS –73 –67 dBc
FOUT = 2.4 GHz CW at –10 dBFS –68 –62.5 dBc
FOUT = 3.5 GHz CW at –10 dBFS –66 –55 –63 –52 dBc
FOUT = 4.2 GHz CW at –10 dBFS –63 –61.7 dBc
FOUT = 4.9 GHz CW at –10 dBFS –62.9 –62.5 dBc
FOUT = 2.4 GHz CW at –15 dBFS –67 –61 dBc
FOUT = 3.5 GHz CW at –15 dBFS –63 –61 dBc
FOUT = 4.2 GHz CW at –15 dBFS –67.8 –70.2 dBc
FOUT = 4.9 GHz CW at –15 dBFS –62.8 –64.7 dBc
IM3 Two-tone, third-order intermodulation distortion

FOUT = 240 MHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–84 –69 –82 –67 dBc

FOUT = 1.9 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–79 –77 dBc

FOUT = 2.4 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–73 –76 dBc

FOUT = 3.5 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–68 –60 –63 –56 dBc

FOUT = 4.2 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–69.3 –64.7 dBc

FOUT = 4.9 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–69.2 –65.5 dBc

FOUT = 240 MHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–79 –65 –72 –62 dBc

FOUT = 1.9 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–70 –69 dBc

FOUT = 2.4 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–67 –67 dBc

FOUT = 3.5 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–67 –57 –67 –56 dBc

FOUT = 4.2 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–65.9 –66.1 dBc

FOUT = 4.9 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–65 –65.1 dBc

FOUT = 2.4 GHz

F1, F2 at –21 dBFS, Δf = 20 MHz

–70 –70 dBc

FOUT = 3.5 GHz

F1, F2 at –21 dBFS, Δf = 20 MHz

–69 –65 dBc

FOUT = 4.2 GHz

F1, F2 at –21 dBFS, Δf = 20 MHz

–66.4 –67.1 dBc

FOUT = 4.9 GHz

F1, F2 at –21 dBFS, Δf = 20 MHz

–62.9 –64.8 dBc
  1. RF-DAC sampling rate is 6.4 GS/s using external sampling clock, DAC in mixed-mode for FOUT > 3.2 GHz.
  2. Typical values are specified at nominal voltage, Tj = 25°C.
  3. Excludes HD2, HD3.
Table 5. Main RF-DAC Performance Characteristics for ZU4xDR Devices–Low Noise Mode
Symbol Parameter Comments/Conditions 1, 2 6.4 mA 32 mA Units
Min Typ 3 Max Min Typ 3 Max
ACLR 4 Adjacent channel leakage ratio measured with external sampling clock forwarded between tiles FC = 240 MHz, single 3.84 MHz QPSK, PAR = 7.6 dB –81.1 –78.8 –81.1 –77 dBc
FC = 1.9 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –76.6 –77.6 dBc
FC = 2.4 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –75.1 –76.9 dBc
FC = 3.5 GHz, single 18 MHz 16QAM, PAR = 8.6 dB, FS = 9 GS/s –68.6 –65.2 –73.4 –67.3 dBc
FC = 4.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB, FS = 8.5 GS/s –66.5 –61.3 –69.2 –61.8 dBc
FC = 5.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –67.3 –69.6 dBc
Adjacent channel leakage ratio with FREF = 500 MHz 6 measured with sampling clock generated from internal RF PLL and forwarded between tiles FC = 3.5 GHz, single 18 MHz 16QAM, PAR = 8.6 dB, FS = 9 GS/s –66.1 –67.9 dBc
FC = 4.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB, , FS = 8.5 GS/s –64.2 –64.9 dBc
FC = 5.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –63.2 –63.6 dBc
OOB 5 Spurious out-of-band emissions FC = 240 MHz, single 3.84 MHz QPSK, PAR = 7.6 dB –95.2 –80.4 dBm/MHz
FC = 1.9 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –93.2 –77.0 dBm/MHz
FC = 2.4 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –94.6 –78.5 dBm/MHz
FC = 3.5 GHz, single 18 MHz 16QAM, PAR = 8.6 dB, FS = 9 GS/s –95.3 –83.5 dBm/MHz
FC = 4.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB, FS = 8.5 GS/s –92.2 –83.4 dBm/MHz
FC = 5.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –91.2 –84.2 dBm/MHz
NSD Noise spectral density measured with external sampling clock forwarded between tiles FOUT = 240 MHz CW at 0 dBFS –164.3 –163.9 –165.6 –165 dBm/Hz
FOUT = 1.9 GHz CW at 0 dBFS –163.5 –158.2 dBm/Hz
FOUT = 2.4 GHz CW at 0 dBFS –163.4 –157.4 dBm/Hz
FOUT = 3.5 GHz at 0 dBFS, FS = 9 GS/s –163.2 –162.6 –155.8 –154.3 dBm/Hz
FOUT = 4.9 GHz at 0 dBFS, FS = 8.5 GS/s –160.8 –159.6 –154.5 –152.1 dBm/Hz
FOUT = 5.9 GHz at 0 dBFS –160.2 –154.4 dBm/Hz
FOUT = 240 MHz CW at –10 dBFS –163.9 dBm/Hz
FOUT = 1.9 GHz CW at –10 dBFS –162.3 dBm/Hz
FOUT = 2.4 GHz CW at –10 dBFS –161.9 dBm/Hz
FOUT= 3.5 GHz at –10 dBFS, FS = 9 GS/s –161.6 dBm/Hz
FOUT = 4.9 GHz at –10 dBFS, FS = 8.5 GS/s –158.6 dBm/Hz
FOUT = 5.9 GHz at –10 dBFS –156.9 dBm/Hz
Noise spectral density with FREF = 500 MHz 6 measured with sampling clock generated from internal RF PLL and forwarded between tiles FOUT = 240 MHz CW at 0 dBFS –164.3 –163.9 –165.5 –164.1 dBm/Hz
FOUT = 1.9 GHz CW at 0 dBFS –163.4 –157.5 dBm/Hz
FOUT = 2.4 GHz CW at 0 dBFS –163.1 –156.1 dBm/Hz
FOUT = 240 MHz CW at –10 dBFS –163.9 dBm/Hz
FOUT = 1.9 GHz CW at –10 dBFS –162.1 dBm/Hz
FOUT = 2.4 GHz CW at –10 dBFS –161.5 dBm/Hz
FOUT = 3.5 GHz CW at 0 dBFS, FS = 9 GS/s –162.8 –154.4 –151.3 dBm/Hz
FOUT = 3.5 GHz CW at –10 dBFS, FS = 9 GS/s –161 dBm/Hz
FOUT = 4.9 GHz CW at 0 dBFS, FS = 8.5 GS/s –160.2 –152.5 –148.6 dBm/Hz
FOUT = 4.9 GHz CW at –10 dBFS, FS = 8.5 GS/s –157.9 dBm/Hz
FOUT = 5.9 GHz CW at 0 dBFS –159.7 –152.5 dBm/Hz
FOUT = 5.9 GHz CW at –10 dBFS –156.5 dBm/Hz
SFDR 4 Spurious free dynamic range excluding second- and third-order harmonic distortion and Fs/2 FOUT = 240 MHz CW at 0 dBFS 71.9 77.1 66.7 73.6 dBc
FOUT = 1.9 GHz CW at 0 dBFS 73.1 70.0 dBc
FOUT = 2.4 GHz CW at 0 dBFS 74.3 70.0 dBc
FOUT = 3.5 GHz CW at 0 dBFS, FS = 9 GS/s 64.7 72.0 62.7 70.0 dBc
FOUT = 4.9 GHz CW at 0 dBFS, FS = 8.5 GS/s 65.9 66.1 dBc
FOUT = 5.9 GHz CW at 0 dBFS 64.7 65.1 dBc
FOUT = 240 MHz CW at –10 dBFS 72.6 dBc
FOUT = 1.9 GHz CW at –10 dBFS 67.3 dBc
FOUT = 2.4 GHz CW at –10 dBFS 69.2 dBc
FOUT = 3.5 GHz CW at –10 dBFS, FS = 9 GS/s 60.7 67.1 dBc
FOUT = 4.9 GHz CW at –10 dBFS, FS = 8.5 GS/s 56.9 64.0 dBc
FOUT = 5.9 GHz CW at –10 dBFS 62.9 dBc
HD2 4, 7 Second-order harmonic distortion FOUT = 240 MHz CW at 0 dBFS –72.9 –62.8 dBc
FOUT = 1.9 GHz CW at 0 dBFS –61.1 –60.0 dBc
FOUT = 2.4 GHz CW at 0 dBFS –58.1 –59.3 dBc
FOUT = 3.5 GHz CW at 0 dBFS, FS = 9 GS/s –63.7 –59.4 dBc
FOUT = 4.9 GHz CW at 0 dBFS, FS = 8.5 GS/s –52.8 –53.1 dBc
FOUT = 5.9 GHz CW at 0 dBFS –50.8 –50.7 dBc
FOUT = 240 MHz CW at –10 dBFS –62.6 dBc
FOUT = 1.9 GHz CW at –10 dBFS –59.8 dBc
FOUT = 2.4 GHz CW at –10 dBFS –59.5 dBc
FOUT = 3.5 GHz CW at –10 dBFS, FS = 9 GS/s –58.6 dBc
FOUT = 4.9 GHz CW at –10 dBFS, FS = 8.5 GS/s –52.7 dBc
FOUT = 5.9 GHz CW at –10 dBFS –50.5 dBc
HD3 4 Third-order harmonic distortion FOUT = 240 MHz CW at 0 dBFS –78.6 –68.9 –73.4 –68.1 dBc
FOUT = 1.9 GHz CW at 0 dBFS –71.0 –68.0 dBc
FOUT = 2.4 GHz CW at 0 dBFS –71.9 –71.8 dBc
FOUT = 3.5 GHz CW at 0 dBFS, FS = 9 GS/s –69.4 –62.5 –60.2 –51.4 dBc
FOUT = 4.9 GHz CW at 0 dBFS, FS = 8.5 GS/s –69.8 –60.5 –59.6 –51.4 dBc
FOUT = 5.9 GHz CW at 0 dBFS –69.7 –60.0 dBc
FOUT = 240 MHz CW at –10 dBFS –73.1 dBc
FOUT = 1.9 GHz CW at –10 dBFS –67.2 dBc
FOUT = 2.4 GHz CW at –10 dBFS –65.4 dBc
FOUT = 3.5 GHz CW at –10 dBFS, FS = 9 GS/s –60.4 –50.9 dBc
FOUT = 4.9 GHz CW at –10 dBFS, FS = 8.5 GS/s –62.5 –50.8 dBc
FOUT = 5.9 GHz CW at –10 dBFS –60.3 dBc
IM3 4 Two-tone, third-order inter-modulation distortion FOUT = 240 MHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–80.5 –70.6 –82.5 –73.5 dBc
FOUT = 1.9 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–74.2 –73.4 dBc
FOUT = 2.4 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–72.4 –73.3 dBc
FOUT = 3.5 GHz, FS = 9 GS/s

F1, F2 at –6 dBFS, Δf = 20 MHz

–69.3 –62.8 –72.6 –62.2 dBc
FOUT = 4.9 GHz, FS = 8.5 GS/s

F1, F2 at –6 dBFS, Δf = 20 MHz

–70.8 –63.5 –64.3 –55.3 dBc
FOUT = 5.9 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–70.7 –63.7 dBc
FOUT = 240 MHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–73.5 dBc
FOUT = 1.9 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–70.5 dBc
FOUT = 2.4 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–68.3 dBc
FOUT = 3.5 GHz, FS = 9 GS/s

F1, F2 at –16 dBFS, Δf = 20 MHz

–66.9 –57.4 dBc
FOUT = 4.9 GHz, FS = 8.5 GS/s

F1, F2 at –16 dBFS, Δf = 20 MHz

–66.6 –56.6 dBc
FOUT = 5.9 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–65.9 dBc
  1. RF-DAC sampling rate is 10 GS/s using an external sampling clock, except when specified. DAC configured in real mode, PAR is computed on the real digital waveform at the DAC input: 10*log10(max(dac_input2)/mean(dac_input2)). The PAR of the complex base-band version (relative to envelope) of the same signal is approximately 3 dB less.
  2. The DAC tiles are characterized using the on-chip clock forwarding configuration from tile 1 (bank 229), except when mentioned in the parameter condition column.
  3. Typical values are specified at nominal voltage, Tj = 40°C.
  4. A derating of 1.5 dB is applied to the worst-case value when using DC coupling with the VOP feature.
  5. Excludes HD2, HD3.
  6. See the Zynq UltraScale+ RFSoC RF Data Converter LogiCORE IP Product Guide (PG269) for internal PLL information.
  7. HD2 measurement is heavily influenced by the intrinsic phase imbalance (P to N skew) presented by interconnect such as baluns, cabling, and PCB traces between the DAC output and spectrum analyzer input. The results presented here include the effect of these systematic skews.
Table 6. RF-DAC Mode Performance Benchmark for ZU4xDR Devices
Symbol Parameter Comments/Conditions 1, 2 20 mA Low Noise Mode 20 mA High Linearity Mode Units
Min Typ 3 Max Min Typ 3 Max
ACLR 4 Adjacent channel leakage ratio measured with external sampling clock forwarded between tiles FC = 240 MHz, single 3.84 MHz QPSK, PAR = 7.6 dB –85.0 –80.7 –83.0 –77.7 dBc
FC = 1.9 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –79.4 –82.8 dBc
FC = 2.4 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –78.4 –81.4 dBc
FC = 3.5 GHz, single 18 MHz 16QAM, PAR = 8.6 dB, FS = 9 GS/s –73.6 –68.0 –74.2 –68.5 dBc
FC = 4.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB, FS = 8.5 GS/s –71.5 –66.0 –71.9 –68.5 dBc
FC = 5.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –71.5 –72.4 dBc
Adjacent channel leakage ratio with FREF = 500 MHz 6 measured with sampling clock generated from internal RF PLL and forwarded between tiles FC = 3.5 GHz, single 18 MHz 16QAM, PAR = 8.6 dB, FS = 9 GS/s –68.0 –68.2 dBc
FC = 4.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB, FS = 8.5 GS/s –65.8 –65.9 dBc
FC = 5.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –64.1 –64.3 dBc
OOB 5 Spurious out-of-band emissions FC = 240 MHz, single 3.84 MHz QPSK, PAR = 7.6 dB –83.7 –83.7 dBm/MHz
FC = 1.9 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –85.1 –90.5 dBm/MHz
FC = 2.4 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –85.6 –91.0 dBm/MHz
FC = 3.5 GHz, single 18 MHz 16QAM, PAR = 8.6 dB, FS = 9 GS/s –88.5 –91.3 dBm/MHz
FC = 4.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB, FS = 8.5 GS/s –88.7 –85.6 dBm/MHz
FC = 5.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –88.8 –85.4 dBm/MHz
NSD Noise spectral density measured with external sampling clock forwarded between tiles FOUT = 240 MHz CW at 0 dBFS –164.4 –163.9 –158.4 –152 dBm/Hz
FOUT = 1.9 GHz CW at 0 dBFS –160.4 –157.5 dBm/Hz
FOUT = 2.4 GHz CW at 0 dBFS –159.9 –157.4 dBm/Hz
FOUT= 3.5 GHz at 0 dBFS, FS = 9 GS/s –158.8 –157.5 –155.6 –150.6 dBm/Hz
FOUT = 4.9 GHz at 0 dBFS, FS = 8.5 GS/s –157.3 –155.2 –156.1 –153.4 dBm/Hz
FOUT = 5.9 GHz at 0 dBFS –157.0 –155.8 dBm/Hz
FOUT = 240 MHz CW at –10 dBFS –163.8 –161.2 dBm/Hz
FOUT = 1.9 GHz CW at –10 dBFS –163.0 –156.4 dBm/Hz
FOUT = 2.4 GHz CW at –10 dBFS –162.9 –155.3 dBm/Hz
FOUT= 3.5 GHz at –10 dBFS, FS = 9 GS/s –162.7 –153.9 dBm/Hz
FOUT = 4.9 GHz at –10 dBFS, FS = 8.5 GS/s –159.9 –158.1 dBm/Hz
FOUT = 5.9 GHz at –10 dBFS –158.3 –156.8 dBm/Hz
Noise spectral density with FREF = 500 MHz 6 measured with sampling clock generated from internal RF PLL and forwarded between tiles FOUT = 240 MHz CW at 0 dBFS –164.3 –163.7 –158.4 –152.0 dBm/Hz
FOUT = 1.9 GHz CW at 0 dBFS –159.9 –157.3 dBm/Hz
FOUT = 2.4 GHz CW at 0 dBFS –158.9 –156.8 dBm/Hz
FOUT = 240 MHz CW at –10 dBFS –163.8 –161.3 dBm/Hz
FOUT = 1.9 GHz CW at –10 dBFS –162.9 –156.5 dBm/Hz
FOUT = 2.4 GHz CW at –10 dBFS –162.6 –155.3 dBm/Hz
FOUT = 3.5 GHz CW at 0 dBFS, FS = 9 GS/s –157.6 –154.9 –155 –150.4 dBm/Hz
FOUT = 3.5 GHz CW at –10 dBFS, FS = 9 GS/s –162.4 –154 dBm/Hz
FOUT = 4.9 GHz CW at 0 dBFS, FS = 8.5 GS/s –155.6 –154.8 dBm/Hz
FOUT = 4.9 GHz CW at –10 dBFS, FS = 8.5 GS/s –159.6 –157.9 dBm/Hz
FOUT = 5.9 GHz CW at 0 dBFS –155.5 –154.6 dBm/Hz
FOUT = 5.9 GHz CW at –10 dBFS –158.1 –156.7 dBm/Hz
SFDR 4 Spurious free dynamic range excluding second- and third-order harmonic distortion and Fs/2 FOUT = 240 MHz CW at 0 dBFS 71.0 78.0 78.3 80.4 dBc
FOUT = 1.9 GHz CW at 0 dBFS 74.5 79.8 dBc
FOUT = 2.4 GHz CW at 0 dBFS 73.6 78.7 dBc
FOUT = 3.5 GHz CW at 0 dBFS, FS = 9 GS/s

(E/I speed grade)

65.1 71.8 70.5 77.7 dBc
FOUT = 3.5 GHz CW at 0 dBFS, FS = 9 GS/s

(M speed grade)

64.9 71.8 69.8 77.7 dBc
FOUT = 4.9 GHz CW at 0 dBFS, FS = 8.5 GS/s 61.2 68.0 65.7 73.8 dBc
FOUT = 5.9 GHz CW at 0 dBFS 66.9 72.3 dBc
FOUT = 240 MHz CW at –10 dBFS 73.5 79.4 dBc
FOUT = 1.9 GHz CW at –10 dBFS 70.8 78.1 dBc
FOUT = 2.4 GHz CW at –10 dBFS 70.0 77.7 dBc
FOUT = 3.5 GHz CW at –10 dBFS, FS = 9 GS/s

(E/I speed grade)

60.9 66.8 71.6 75.9 dBc
FOUT = 3.5 GHz CW at –10 dBFS, FS = 9 GS/s

(M speed grade)

60.6 66.8 67.0 75.9 dBc
FOUT = 4.9 GHz CW at –10 dBFS, FS = 8.5 GS/s 57.3 63.8 66.2 70.4 dBc
FOUT = 5.9 GHz CW at –10 dBFS 62.7 69.0 dBc
HD2 4, 7 Second-order harmonic distortion FOUT = 240 MHz CW at 0 dBFS –71.8 –87.5 dBc
FOUT = 1.9 GHz CW at 0 dBFS –64.9 –77.5 dBc
FOUT = 2.4 GHz CW at 0 dBFS –63.0 –71.9 dBc
FOUT = 3.5 GHz CW at 0 dBFS, FS = 9 GS/s –66.1 –74.1 dBc
FOUT = 4.9 GHz CW at 0 dBFS, FS = 8.5 GS/s –55.9 –62.8 dBc
FOUT = 5.9 GHz CW at 0 dBFS –53.1 –59.0 dBc
FOUT = 240 MHz CW at –10 dBFS –70.9 –87.4 dBc
FOUT = 1.9 GHz CW at –10 dBFS –64.0 –77.3 dBc
FOUT = 2.4 GHz CW at –10 dBFS –62.7 –70.6 dBc
FOUT = 3.5 GHz CW at –10 dBFS, FS = 9 GS/s –63.3 –74.5 dBc
FOUT = 4.9 GHz CW at –10 dBFS, FS = 8.5 GS/s –55.0 –62.5 dBc
FOUT = 5.9 GHz CW at –10 dBFS –52.2 –58.6 dBc
HD3 4 Third-order harmonic distortion FOUT = 240 MHz CW at 0 dBFS –78.8 –69.7 –83.1 –79.8 dBc
FOUT = 1.9 GHz CW at 0 dBFS –71.4 –71.9 dBc
FOUT = 2.4 GHz CW at 0 dBFS –72.5 –74.2 dBc
FOUT = 3.5 GHz CW at 0 dBFS, FS = 9 GS/s –67.5 –58.6 –69.6 –59.5 dBc
FOUT = 4.9 GHz CW at 0 dBFS, FS = 8.5 GS/s –66.4 –57.5 –67.1 –61.8 dBc
FOUT = 5.9 GHz CW at 0 dBFS –67.4 –68.2 dBc
FOUT = 240 MHz CW at –10 dBFS –77.1 –87.7 dBc
FOUT = 1.9 GHz CW at –10 dBFS –68.6 –84.2 dBc
FOUT = 2.4 GHz CW at –10 dBFS –68.4 –84.8 dBc
FOUT = 3.5 GHz CW at –10 dBFS, FS = 9 GS/s –66.7 –56.4 –73.7 –65.1 dBc
FOUT = 4.9 GHz CW at –10 dBFS, FS = 8.5 GS/s –65.6 –53.4 –78.7 –74.8 dBc
FOUT = 5.9 GHz CW at –10 dBFS –63.7 –78.0 dBc
IM3 4 Two-tone, third-order inter-modulation distortion FOUT = 240 MHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–83.3 –73.8 –89.3 –86.8 dBc
FOUT = 1.9 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–78.0 –86.4 dBc
FOUT = 2.4 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–76.6 –82.0 dBc
FOUT = 3.5 GHz, FS = 9 GS/s

F1, F2 at –6 dBFS, Δf = 20 MHz

–75.3 –66.8 –73.3 –63.5 dBc
FOUT = 4.9 GHz, FS = 8.5 GS/s

F1, F2 at –6 dBFS, Δf = 20 MHz

–72.3 –61.3 –71.0 –64.8 dBc
FOUT = 5.9 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–72 –70.7 dBc
FOUT = 240 MHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–80.6 –89.1 dBc
FOUT = 1.9 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–72.3 –82.0 dBc
FOUT = 2.4 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–69.7 –79.7 dBc
FOUT = 3.5 GHz, FS = 9 GS/s

F1, F2 at –16 dBFS, Δf = 20 MHz

–67.8 –57.7 –78.5 –75.1 dBc
FOUT = 4.9 GHz, FS = 8.5 GS/s

F1, F2 at –16 dBFS, Δf = 20 MHz

–66.9 –56.9 –73.3 –70.9 dBc
FOUT = 5.9 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–65.6 –73.2 dBc
  1. RF-DAC sampling rate is 10 GS/s using an external sampling clock, except when specified. PAR is defined by 10*log10( max(RF_signal2) / mean(RF_signal2)) .
  2. The DAC tiles are characterized using the on-chip clock forwarding configuration from tile 1 (bank 229), except when mentioned in the parameter condition column.
  3. Typical values are specified at nominal voltage, Tj = 40°C.
  4. A derating of 1.5 dB is applied to the worst-case value when using DC coupling with the VOP feature.
  5. Excludes HD2, HD3.
  6. See Zynq UltraScale+ RFSoC RF Data Converter LogiCORE IP Product Guide (PG269) for internal PLL information.
  7. HD2 measurement is heavily influenced by the intrinsic phase imbalance (P to N skew) presented by interconnect such as baluns, cabling, and PCB traces between the DAC output and spectrum analyzer input. The results presented here include the effect of these systematic skews.
Table 7. Main RF-DAC Performance Characteristics for ZU6xDR Devices–Low Noise Mode
Symbol Parameter Comments/Conditions 1, 2 6.4 mA 32 mA Units
Min Typ 3 Max Min Typ 3 Max
ACLR 4 Adjacent channel leakage ratio measured with external sampling clock forwarded between tiles FC = 240 MHz, single 3.84 MHz QPSK, PAR = 7.6 dB –81.1 –78.8 –81.1 –77.0 dBc
FC = 1.9 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –76.6 –77.6 dBc
FC = 2.4 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –75.1 –76.9 dBc
FC = 3.5 GHz, single 18 MHz 16QAM, PAR = 8.6 dB, FS = 9 GS/s –68.6 –65.2 –73.4 –67.3 dBc
FC = 4.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB, FS = 8.5 GS/s –66.5 –61.3 –69.2 –61.8 dBc
FC = 5.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –67.3 –69.6 dBc
FC = 6.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –67.2 –68.7 dBc
Adjacent channel leakage ratio with FREF = 500 MHz 6 measured with sampling clock generated from internal RF PLL and forwarded between tiles FC = 3.5 GHz, single 18 MHz 16QAM, PAR = 8.6 dB, FS = 9 GS/s –66.1 –67.9 dBc
FC = 4.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB, , FS = 8.5 GS/s –64.2 –64.9 dBc
FC = 5.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –63.2 –63.6 dBc
FC = 6.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –62.3 –62.6 dBc
OOB 5 Spurious out-of-band emissions FC = 240 MHz, single 3.84 MHz QPSK, PAR = 7.6 dB –95.2 –80.4 dBm/MHz
FC = 1.9 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –93.2 –77.0 dBm/MHz
FC = 2.4 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –94.6 –78.5 dBm/MHz
FC = 3.5 GHz, single 18 MHz 16QAM, PAR = 8.6 dB, FS = 9 GS/s –95.3 –83.5 dBm/MHz
FC = 4.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB, FS = 8.5 GS/s –92.2 –83.4 dBm/MHz
FC = 5.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –91.2 –84.2 dBm/MHz
FC = 6.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –89.7 –82.9 dBm/MHz
NSD Noise spectral density measured with external sampling clock forwarded between tiles FOUT = 240 MHz CW at 0 dBFS –164.3 –163.9 –165.6 –165.0 dBm/Hz
FOUT = 1.9 GHz CW at 0 dBFS –163.5 –158.2 dBm/Hz
FOUT = 2.4 GHz CW at 0 dBFS –163.4 –157.4 dBm/Hz
FOUT= 3.5 GHz at 0 dBFS, FS = 9 GS/s –163.2 –162.6 –155.8 –154.3 dBm/Hz
FOUT = 4.9 GHz at 0 dBFS, FS = 8.5 GS/s –160.8 –159.6 –154.5 –152.1 dBm/Hz
FOUT = 5.9 GHz at 0 dBFS –160.2 –154.4 dBm/Hz
FOUT = 6.9 GHz at 0 dBFS –160.2 –154.1 dBm/Hz
FOUT = 240 MHz CW at –10 dBFS –163.9 dBm/Hz
FOUT = 1.9 GHz CW at –10 dBFS –162.3 dBm/Hz
FOUT = 2.4 GHz CW at –10 dBFS –161.9 dBm/Hz
FOUT= 3.5 GHz at –10 dBFS, FS = 9 GS/s –161.6 dBm/Hz
FOUT = 4.9 GHz at –10 dBFS, FS = 8.5 GS/s –158.6 dBm/Hz
FOUT = 5.9 GHz at –10 dBFS –156.9 dBm/Hz
FOUT = 6.9 GHz at –10 dBFS –158.9 dBm/Hz
Noise spectral density with FREF = 500 MHz 6 measured with sampling clock generated from internal RF PLL and forwarded between tiles FOUT = 240 MHz CW at 0 dBFS –164.3 –163.9 –165.5 –164.1 dBm/Hz
FOUT = 1.9 GHz CW at 0 dBFS –163.4 –157.5 dBm/Hz
FOUT = 2.4 GHz CW at 0 dBFS –163.1 –156.1 dBm/Hz
FOUT = 240 MHz CW at –10 dBFS –163.9 dBm/Hz
FOUT = 1.9 GHz CW at –10 dBFS –162.1 dBm/Hz
FOUT = 2.4 GHz CW at –10 dBFS –161.5 dBm/Hz
FOUT = 3.5 GHz CW at 0 dBFS, FS = 9 GS/s –162.8 –154.4 –151.3 dBm/Hz
FOUT = 3.5 GHz CW at –10 dBFS, FS = 9 GS/s –161.0 dBm/Hz
FOUT = 4.9 GHz CW at 0 dBFS, FS = 8.5 GS/s –160.2 –152.5 –148.6 dBm/Hz
FOUT = 4.9 GHz CW at –10 dBFS, FS = 8.5 GS/s –157.9 dBm/Hz
FOUT = 5.9 GHz CW at 0 dBFS –159.7 –152.5 dBm/Hz
FOUT = 5.9 GHz CW at –10 dBFS –156.5 dBm/Hz
FOUT = 6.9 GHz CW at 0 dBFS –159.7 –152.2 dBm/Hz
FOUT = 6.9 GHz CW at –10 dBFS –158.2 dBm/Hz
SFDR 4 Spurious free dynamic range excluding second- and third-order harmonic distortion and Fs/2 FOUT = 240 MHz CW at 0 dBFS 71.9 77.1 66.7 73.6 dBc
FOUT = 1.9 GHz CW at 0 dBFS 73.1 70.0 dBc
FOUT = 2.4 GHz CW at 0 dBFS 74.3 70.0 dBc
FOUT = 3.5 GHz CW at 0 dBFS, FS = 9 GS/s 64.7 72.0 62.7 70.0 dBc
FOUT = 4.9 GHz CW at 0 dBFS, FS = 8.5 GS/s 65.9 66.1 dBc
FOUT = 5.9 GHz CW at 0 dBFS 64.7 65.1 dBc
FOUT = 6.9 GHz CW at 0 dBFS 65.2 67.6 dBc
FOUT = 240 MHz CW at –10 dBFS 72.6 dBc
FOUT = 1.9 GHz CW at –10 dBFS 67.3 dBc
FOUT = 2.4 GHz CW at –10 dBFS 69.2 dBc
FOUT = 3.5 GHz CW at –10 dBFS, FS = 9 GS/s 60.7 67.1 dBc
FOUT = 4.9 GHz CW at –10 dBFS, FS = 8.5 GS/s 56.9 64.0 dBc
FOUT = 5.9 GHz CW at –10 dBFS 62.9 dBc
FOUT = 6.9 GHz CW at –10 dBFS 63.2 dBc
HD2 4, 7 Second-order harmonic distortion FOUT = 240 MHz CW at 0 dBFS –72.9 –62.8 dBc
FOUT = 1.9 GHz CW at 0 dBFS –61.1 –60.0 dBc
FOUT = 2.4 GHz CW at 0 dBFS –58.1 –59.3 dBc
FOUT = 3.5 GHz CW at 0 dBFS, FS = 9 GS/s –63.7 –59.4 dBc
FOUT = 4.9 GHz CW at 0 dBFS, FS = 8.5 GS/s –52.8 –53.1 dBc
FOUT = 5.9 GHz CW at 0 dBFS –50.8 –50.7 dBc
FOUT = 6.9 GHz CW at 0 dBFS –53.8 –53.4 dBc
FOUT = 240 MHz CW at –10 dBFS –62.6 dBc
FOUT = 1.9 GHz CW at –10 dBFS –59.8 dBc
FOUT = 2.4 GHz CW at –10 dBFS –59.5 dBc
FOUT = 3.5 GHz CW at –10 dBFS, FS = 9 GS/s –58.6 dBc
FOUT = 4.9 GHz CW at –10 dBFS, FS = 8.5 GS/s –52.7 dBc
FOUT = 5.9 GHz CW at –10 dBFS –50.5 dBc
FOUT = 6.9 GHz CW at –10 dBFS –53.1 dBc
HD3 4 Third-order harmonic distortion FOUT = 240 MHz CW at 0 dBFS –78.6 –68.9 –73.4 –68.1 dBc
FOUT = 1.9 GHz CW at 0 dBFS –71.0 –68.0 dBc
FOUT = 2.4 GHz CW at 0 dBFS –71.9 –71.8 dBc
FOUT = 3.5 GHz CW at 0 dBFS, FS = 9 GS/s –69.4 –62.5 –60.2 –51.4 dBc
FOUT = 4.9 GHz CW at 0 dBFS, FS = 8.5 GS/s –69.8 –60.5 –59.6 –51.4 dBc
FOUT = 5.9 GHz CW at 0 dBFS –69.7 –60.0 dBc
FOUT = 6.9 GHz CW at 0 dBFS –64.5 –63.2 dBc
FOUT = 240 MHz CW at –10 dBFS –73.1 dBc
FOUT = 1.9 GHz CW at –10 dBFS –67.2 dBc
FOUT = 2.4 GHz CW at –10 dBFS –65.4 dBc
FOUT = 3.5 GHz CW at –10 dBFS, FS = 9 GS/s –60.4 –50.9 dBc
FOUT = 4.9 GHz CW at –10 dBFS, FS = 8.5 GS/s –62.5 –50.8 dBc
FOUT = 5.9 GHz CW at –10 dBFS –60.3 dBc
FOUT = 6.9 GHz CW at –10 dBFS –59.8 dBc
IM3 4 Two-tone, third-order inter-modulation distortion FOUT = 240 MHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–80.5 –70.6 –82.5 –73.5 dBc
FOUT = 1.9 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–74.2 –73.4 dBc
FOUT = 2.4 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–72.4 –73.3 dBc
FOUT = 3.5 GHz, FS = 9 GS/s

F1, F2 at –6 dBFS, Δf = 20 MHz

–69.3 –62.8 –72.6 –62.2 dBc
FOUT = 4.9 GHz, FS = 8.5 GS/s

F1, F2 at –6 dBFS, Δf = 20 MHz

–70.8 –63.5 –64.3 –55.3 dBc
FOUT = 5.9 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–70.7 –63.7 dBc
FOUT = 6.9 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–69.9 –63.2 dBc
FOUT = 240 MHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–73.5 dBc
FOUT = 1.9 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–70.5 dBc
FOUT = 2.4 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–68.3 dBc
FOUT = 3.5 GHz, FS = 9 GS/s

F1, F2 at –16 dBFS, Δf = 20 MHz

–66.9 –57.4 dBc
FOUT = 4.9 GHz, FS = 8.5 GS/s

F1, F2 at –16 dBFS, Δf = 20 MHz

–66.6 –56.6 dBc
FOUT = 5.9 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–65.9 dBc
FOUT = 6.9 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–65.4 dBc
  1. RF-DAC sampling rate is 10 GS/s using an external sampling clock, except when specified. DAC configured in real mode, PAR is computed on the real digital waveform at the DAC input: 10*log10(max(dac_input2)/mean(dac_input2)). The PAR of the complex base-band version (relative to envelope) of the same signal is approximately 3 dB less.
  2. The DAC tiles are characterized using the on-chip clock forwarding configuration from tile 1, except when mentioned in the parameter condition column.
  3. Typical values are specified at nominal voltage, Tj = 40°C.
  4. A derating of 1.5 dB is applied to the worst-case value when using DC coupling with the VOP feature.
  5. Excludes HD2, HD3.
  6. See the Zynq UltraScale+ RFSoC RF Data Converter LogiCORE IP Product Guide (PG269) for internal PLL information.
  7. HD2 measurement is heavily influenced by the intrinsic phase imbalance (P to N skew) presented by interconnect such as baluns, cabling, and PCB traces between the DAC output and spectrum analyzer input. The results presented here include the effect of these systematic skews.
Table 8. RF-DAC Mode Performance Benchmark for ZU6xDR Devices
Symbol Parameter Comments/Conditions 1, 2 20 mA Low Noise Mode 20 mA High Linearity Mode Units
Min Typ 3 Max Min Typ 3 Max
ACLR 4 Adjacent channel leakage ratio measured with external sampling clock forwarded between tiles FC = 240 MHz, single 3.84 MHz QPSK, PAR = 7.6 dB –85.0 –80.7 –83.0 –77.7 dBc
FC = 1.9 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –79.4 –82.8 dBc
FC = 2.4 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –78.4 –81.4 dBc
FC = 3.5 GHz, single 18 MHz 16QAM, PAR = 8.6 dB, FS = 9 GS/s –73.6 –68.0 –74.2 –68.5 dBc
FC = 4.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB, FS = 8.5 GS/s –71.5 –66.0 –71.9 –68.5 dBc
FC = 5.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –71.5 –72.4 dBc
FC = 6.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –70 –70.7 dBc
Adjacent channel leakage ratio with FREF = 500 MHz 6 measured with sampling clock generated from internal RF PLL and forwarded between tiles FC = 3.5 GHz, single 18 MHz 16QAM, PAR = 8.6 dB, FS = 9 GS/s –68.0 –68.2 dBc
FC = 4.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB, FS = 8.5 GS/s –65.8 –65.9 dBc
FC = 5.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –64.1 –64.3 dBc
FC = 6.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –63.1 –63.2 dBc
OOB 5 Spurious out-of-band emissions FC = 240 MHz, single 3.84 MHz QPSK, PAR = 7.6 dB –83.7 –83.7 dBm/MHz
FC = 1.9 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –85.1 –90.5 dBm/MHz
FC = 2.4 GHz, single 3.84 MHz QPSK, PAR = 7.6 dB –85.6 –91.0 dBm/MHz
FC = 3.5 GHz, single 18 MHz 16QAM, PAR = 8.6 dB, FS = 9 GS/s –88.5 –91.3 dBm/MHz
FC = 4.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB, FS = 8.5 GS/s –88.7 –85.6 dBm/MHz
FC = 5.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –88.8 –85.4 dBm/MHz
FC = 6.9 GHz, single 18 MHz 16QAM, PAR = 8.6 dB –87.6 –84.6 dBm/MHz
NSD Noise spectral density measured with external sampling clock forwarded between tiles FOUT = 240 MHz CW at 0 dBFS –164.4 –163.9 –158.4 –152.0 dBm/Hz
FOUT = 1.9 GHz CW at 0 dBFS –160.4 –157.5 dBm/Hz
FOUT = 2.4 GHz CW at 0 dBFS –159.9 –157.4 dBm/Hz
FOUT= 3.5 GHz at 0 dBFS, FS = 9 GS/s –158.8 –157.5 –155.6 –150.6 dBm/Hz
FOUT = 4.9 GHz at 0 dBFS, FS = 8.5 GS/s –157.3 –155.2 –156.1 –153.4 dBm/Hz
FOUT = 5.9 GHz at 0 dBFS –157.0 –155.8 dBm/Hz
FOUT = 6.9 GHz at 0 dBFS –156.8 –155.1 dBm/Hz
FOUT = 240 MHz CW at –10 dBFS –163.8 –161.2 dBm/Hz
FOUT = 1.9 GHz CW at –10 dBFS –163.0 –156.4 dBm/Hz
FOUT = 2.4 GHz CW at –10 dBFS –162.9 –155.3 dBm/Hz
FOUT= 3.5 GHz at –10 dBFS, FS = 9 GS/s –162.7 –153.9 dBm/Hz
FOUT = 4.9 GHz at –10 dBFS, FS = 8.5 GS/s –159.9 –158.1 dBm/Hz
FOUT = 5.9 GHz at –10 dBFS –158.3 –156.8 dBm/Hz
FOUT = 6.9 GHz at –10 dBFS –159.9 –158.3 dBm/Hz
Noise spectral density with FREF = 500 MHz 6 measured with sampling clock generated from internal RF PLL and forwarded between tiles FOUT = 240 MHz CW at 0 dBFS –164.3 –163.7 –158.4 –152.0 dBm/Hz
FOUT = 1.9 GHz CW at 0 dBFS –159.9 –157.3 dBm/Hz
FOUT = 2.4 GHz CW at 0 dBFS –158.9 –156.8 dBm/Hz
FOUT = 240 MHz CW at –10 dBFS –163.8 –161.3 dBm/Hz
FOUT = 1.9 GHz CW at –10 dBFS –162.9 –156.5 dBm/Hz
FOUT = 2.4 GHz CW at –10 dBFS –162.6 –155.3 dBm/Hz
FOUT = 3.5 GHz CW at 0 dBFS, FS = 9 GS/s –157.6 –154.9 –155.0 –150.4 dBm/Hz
FOUT = 3.5 GHz CW at –10 dBFS, FS = 9 GS/s –162.4 –154.0 dBm/Hz
FOUT = 4.9 GHz CW at 0 dBFS, FS = 8.5 GS/s –155.6 –154.8 dBm/Hz
FOUT = 4.9 GHz CW at –10 dBFS, FS = 8.5 GS/s –159.6 –157.9 dBm/Hz
FOUT = 5.9 GHz CW at 0 dBFS –155.5 –154.6 dBm/Hz
FOUT = 5.9 GHz CW at –10 dBFS –158.1 –156.7 dBm/Hz
FOUT = 6.9 GHz CW at 0 dBFS –155.2 –154.0 dBm/Hz
FOUT = 6.9 GHz CW at –10 dBFS –159.5 –158.1 dBm/Hz
SFDR 4 Spurious free dynamic range excluding second- and third-order harmonic distortion and Fs/2 FOUT = 240 MHz CW at 0 dBFS 71.0 78.0 78.3 80.4 dBc
FOUT = 1.9 GHz CW at 0 dBFS 74.5 79.8 dBc
FOUT = 2.4 GHz CW at 0 dBFS 73.6 78.7 dBc
FOUT = 3.5 GHz CW at 0 dBFS, FS = 9 GS/s

(E/I speed grade)

65.1 71.8 70.5 77.7 dBc
FOUT = 3.5 GHz CW at 0 dBFS, FS = 9 GS/s

(M speed grade)

64.9 71.8 69.8 77.7 dBc
FOUT = 4.9 GHz CW at 0 dBFS, FS = 8.5 GS/s 61.2 68.0 65.7 73.8 dBc
FOUT = 5.9 GHz CW at 0 dBFS 66.9 72.3 dBc
FOUT = 6.9 GHz CW at 0 dBFS 68.7 72.6 dBc
FOUT = 240 MHz CW at –10 dBFS 73.5 79.4 dBc
FOUT = 1.9 GHz CW at –10 dBFS 70.8 78.1 dBc
FOUT = 2.4 GHz CW at –10 dBFS 70.0 77.7 dBc
FOUT = 3.5 GHz CW at –10 dBFS, FS = 9 GS/s

(E/I speed grade)

60.9 66.8 71.6 75.9 dBc
FOUT = 3.5 GHz CW at –10 dBFS, FS = 9 GS/s

(M speed grade)

60.6 66.8 67.0 75.9 dBc
FOUT = 4.9 GHz CW at –10 dBFS, FS = 8.5 GS/s 57.3 63.8 66.2 70.4 dBc
FOUT = 5.9 GHz CW at –10 dBFS 62.7 69.0 dBc
FOUT = 6.9 GHz CW at –10 dBFS 63.2 69.4 dBc
HD2 4, 7 Second-order harmonic distortion FOUT = 240 MHz CW at 0 dBFS –71.8 –87.5 dBc
FOUT = 1.9 GHz CW at 0 dBFS –64.9 –77.5 dBc
FOUT = 2.4 GHz CW at 0 dBFS –63.0 –71.9 dBc
FOUT = 3.5 GHz CW at 0 dBFS, FS = 9 GS/s –66.1 –74.1 dBc
FOUT = 4.9 GHz CW at 0 dBFS, FS = 8.5 GS/s –55.9 –62.8 dBc
FOUT = 5.9 GHz CW at 0 dBFS –53.1 –59.0 dBc
FOUT = 6.9 GHz CW at 0 dBFS –56.2 –62.6 dBc
FOUT = 240 MHz CW at –10 dBFS –70.9 –87.4 dBc
FOUT = 1.9 GHz CW at –10 dBFS –64.0 –77.3 dBc
FOUT = 2.4 GHz CW at –10 dBFS –62.7 –70.6 dBc
FOUT = 3.5 GHz CW at –10 dBFS, FS = 9 GS/s –63.3 –74.5 dBc
FOUT = 4.9 GHz CW at –10 dBFS, FS = 8.5 GS/s –55.0 –62.5 dBc
FOUT = 5.9 GHz CW at –10 dBFS –52.2 –58.6 dBc
FOUT = 6.9 GHz CW at –10 dBFS –55.5 –62.5 dBc
HD3 4 Third-order harmonic distortion FOUT = 240 MHz CW at 0 dBFS –78.8 –69.7 –83.1 –79.8 dBc
FOUT = 1.9 GHz CW at 0 dBFS –71.4 –71.9 dBc
FOUT = 2.4 GHz CW at 0 dBFS –72.5 –74.2 dBc
FOUT = 3.5 GHz CW at 0 dBFS, FS = 9 GS/s –67.5 –58.6 –69.6 –59.5 dBc
FOUT = 4.9 GHz CW at 0 dBFS, FS = 8.5 GS/s –66.4 –57.5 –67.1 –61.8 dBc
FOUT = 5.9 GHz CW at 0 dBFS –67.4 –68.2 dBc
FOUT = 6.9 GHz CW at 0 dBFS –64.2 –66.1 dBc
FOUT = 240 MHz CW at –10 dBFS –77.1 –87.7 dBc
FOUT = 1.9 GHz CW at –10 dBFS –68.6 –84.2 dBc
FOUT = 2.4 GHz CW at –10 dBFS –68.4 –84.8 dBc
FOUT = 3.5 GHz CW at –10 dBFS, FS = 9 GS/s –66.7 –56.4 –73.7 –65.1 dBc
FOUT = 4.9 GHz CW at –10 dBFS, FS = 8.5 GS/s –65.6 –53.4 –78.7 –74.8 dBc
FOUT = 5.9 GHz CW at –10 dBFS –63.7 –78.0 dBc
FOUT = 6.9 GHz CW at –10 dBFS –63.0 –76.8 dBc
IM3 4 Two-tone, third-order inter-modulation distortion FOUT = 240 MHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–83.3 –73.8 –89.3 –86.8 dBc
FOUT = 1.9 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–78.0 –86.4 dBc
FOUT = 2.4 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–76.6 –82.0 dBc
FOUT = 3.5 GHz, FS = 9 GS/s

F1, F2 at –6 dBFS, Δf = 20 MHz

–75.3 –66.8 –73.3 –63.5 dBc
FOUT = 4.9 GHz, FS = 8.5 GS/s

F1, F2 at –6 dBFS, Δf = 20 MHz

–72.3 –61.3 –71.0 –64.8 dBc
FOUT = 5.9 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–72.0 –70.7 dBc
FOUT = 6.9 GHz

F1, F2 at –6 dBFS, Δf = 20 MHz

–70.7 –70.9 dBc
FOUT = 240 MHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–80.6 –89.1 dBc
FOUT = 1.9 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–72.3 –82.0 dBc
FOUT = 2.4 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–69.7 –79.7 dBc
FOUT = 3.5 GHz, FS = 9 GS/s

F1, F2 at –16 dBFS, Δf = 20 MHz

–67.8 –57.7 –78.5 –75.1 dBc
FOUT = 4.9 GHz, FS = 8.5 GS/s

F1, F2 at –16 dBFS, Δf = 20 MHz

–66.9 –56.9 –73.3 –70.9 dBc
FOUT = 5.9 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–65.6 –73.2 dBc
FOUT = 6.9 GHz

F1, F2 at –16 dBFS, Δf = 20 MHz

–64.1 –70.5 dBc
  1. RF-DAC sampling rate is 10 GS/s using an external sampling clock, except when specified. PAR is defined by 10*log10( max(RF_signal2) / mean(RF_signal2)) .
  2. The DAC tiles are characterized using the on-chip clock forwarding configuration from tile 1, except when mentioned in the parameter condition column.
  3. Typical values are specified at nominal voltage, Tj = 40°C.
  4. A derating of 1.5 dB is applied to the worst-case value when using DC coupling with the VOP feature.
  5. Excludes HD2, HD3.
  6. See Zynq UltraScale+ RFSoC RF Data Converter LogiCORE IP Product Guide (PG269) for internal PLL information.
  7. HD2 measurement is heavily influenced by the intrinsic phase imbalance (P to N skew) presented by interconnect such as baluns, cabling, and PCB traces between the DAC output and spectrum analyzer input. The results presented here include the effect of these systematic skews.