HUAWEI MC509 Series CDMA LGA Module
Hardware Guide
Description of the Application Interfaces
Issue 02 (2013-05-06)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
41
Figure 3-18
Circuit diagram of the interface of the first audio channel
Figure 3-19
Circuit diagram of the interface of the second audio channel
It is recommended that a TVS be used on the related interface, to prevent electrostatic
discharge and protect integrated circuit (IC) components.
Data only does not support the voice function.
3.8.2
Digital Audio
The MC509 provides one digital audio channels (Data only doesn
’t support the voice
function). Table 3-10 lists the signals on the digital audio interface.