Audio Clocking (Recommendation) - 3.1 English

DisplayPort 1.4 RX Subsystem Product Guide (PG300)

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3.1 English

DisplayPort Sink device receives MAUD and NAUD values from the upstream source device. These values are accessible to the system through the output ports and registers.

The system should have a clock generator (preferably programmable) to generate 512 × fs (Audio Sample Rate) clock frequency based on MAUD and NAUD values. An External clock source is preferred for better precision.

Figure 1. Audio Clocking for Sink