Reference Design; System Block - Huawei MU509 Series Design Manual

HUAWEI LGA Module PCM Audio Design Guide

3.1 System Block

It is recommended that Huawei LGA module should work in PCM master mode. It
means PCM_CLK and PCM_SYNC are generated by Huawei LGA module.
The codec of TLV320AIC3204 and NAU8814 are recommended to be used.
If customers have the I2C or SPI communication bus, TLV320AIC3204 or NAU8814
is recommended to be used. The recommended connections of TLV320AIC3204 are
as shown in the following figure.
If customers have the communication bus and want to use NAU8814, the I2C of
Huawei LGA module can be used. The module (MU709) can control NAU8814 by its
I2C and does not need MCU anymore. In addition, Huawei LGA module provides
AT^CPCM command to control NAU8814.
Issue 04 (2016-12-12)
LGA
Module
5
PCM_SYNC
6
PCM_DIN
7
PCM_DOUT
8
PCM_CLK
MCU
I2C_DATA
I2C_CLK
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Copyright © Huawei Technologies Co., Ltd.
3

Reference Design

Codec:
TLV320AIC3204
PCM_SYNC
PCM_DOUT
PCM_DIN
PCM_CLK
I2C_DATA
I2C_CLK
Reference Design
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