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CM52 Integrators’ Manual

WI_DEV_CM52_UGD_001-001

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CM52 Integrators’ Manual

Figure 12: RTC Functional Block Diagram

2.6 Audio Interface

The audio-related signals are: the analog audio signals

 ATMS (Audio to Mobile Station),

 AFMS (Audio from Mobile Station),

 PCM (Pulse Code Modulation) signals (PCMULD, PCMDLD, PCMCLK, and PCMSYNC).

Pin Signal Description

7 AFMS Audio Output From Wireless CPU

10 ATMS Audio Input to Wireless CPU

9 AGND Analog Reference

17 PCMCLK PCM Clock Output from Wireless CPU

18 PCMSYNC PCM Frame Sync Output from Wireless CPU

19 PCMULD PCM Voice Input to Wireless CPU

20 PCMDLD PCM Voice Output from Wireless CPU

Table 16: CM52 Audio Signals

This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written agreement.

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Wavecom G2 Guide de l'utilisateur Page 27