CSR8615 View Datasheet(PDF) - Unspecified
Part Name
Description
MFG CO.
'CSR8615' PDF : 114 Pages View PDF
9 Audio Interface
The audio interface circuit consists of:
â– Stereo line input with 1-mic CVC input and mono output audio codec
â– Dual analogue audio inputs
â– Mono analogue audio output
■Configurable PCM (PCM1) and I²S interfaces, for configuration information contact CSR
Figure 9.1 shows the functional blocks of the interface. The codec supports mono playback and stereo line input
3 recording of audio signals at multiple sample rates with a 16-bit resolution. The ADC contains 2 independent high-
01 quality channels and the DAC a single high-quality channel of the codec. Any of the ADC channels or the DAC
, 2 channel runs at its own independent sample rate.
er 16 Stereo Line Input With 1-Mic CVC and Mono Input Codec
temb PCM1
PCM1 Interface
day, Sep Memory
n Management
o Unit
MMU Voice Port
Voice Port
Digital
Audio
mm.com.cn - M Register Interface
Registers
Audio
Codec
Driver
1 x Differential
DAC Output
2 x Differential
ADC Inputs
acheco Figure 9.1: Audio Interface
- ap The interface for the digital audio bus shares the same pins as the PCM1 codec interface described in Section
ao 9.3. Table 9.1 lists the alternative functions.
Ts Important Note:
mes The term PCM in Section 9.3 and its subsections refers to the PCM1 interface.
for jaPCM Interface
Prepared PCM_OUT
I²S Interface
SD_OUT
PCM_IN
SD_IN
PCM_SYNC
WS
PCM_CLK
SCK
Table 9.1: Alternative Functions of the Digital Audio Bus Interface on the PCM1 Interface
Pre-production Information
© Cambridge Silicon Radio Limited 2013
Confidential Information - This Material is Subject to CSR's Non-disclosure Agreement
Page 38 of 114
CS-303726-DSP3
www.csr.com
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