GTM Transceiver PLL/Lock Time Adaptation - GTM Transceiver PLL/Lock Time Adaptation - DS959

Versal Premium Series Data Sheet: DC and AC Switching Characteristics (DS959)

Document ID: DS959
Release Date: 2026-02-06
Revision: 1.8 English
isSecure: false

Table 1. GTM Transceiver PLL/Lock Time Adaptation
Symbol	Description	Conditions		All Speed Grades			Units
Symbol	Description	Conditions		Min	Typ	Max	Units
T_LOCK	Initial PLL lock	Reference clock frequency ≥ 200 MHz		–	–	3	ms
T_LOCK	Initial PLL lock	Reference clock frequency < 200 MHz		–	–	5.7	ms
T_DLOCK	Clock recovery phase acquisition and adaptation time	PAM4 (<39 Gb/s)	Short reach (IL < 12db)	–	6.21×10¹⁰	–	UI
		PAM4 (<39 Gb/s)	Long reach (IL ≥ 12db)	–	7.71×10⁹	–	UI
		PAM4 (≥39 Gb/s)	Short reach (IL < 12db)	–	4×10¹⁰	–	UI
		PAM4 (≥39 Gb/s)	Long reach (IL ≥ 12db)	–	1.54×10¹⁰	–	UI
		NRZ		–	1.54×10¹⁰	–	UI