Huawei MU709s-2 Hardware Manual page 37

HUAWEI MU709s-2 HSPA+ LGA Module
Hardware Guide
Figure 3-13 Circuit diagram of the interface of the PCM (MU709s-2 is used as PCM
master)
Figure 3-14 Circuit diagram of the interface of the PCM (MU709s-2 is used as PCM
slave)
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Issue 03 (2014-09-18)
PCM_SYNC: Output when PCM is in master mode; Input when PCM is in slave mode.
PCM_CLK: Output when PCM is in master mode; Input when PCM is in slave mode.
MU709s-2 supports both master and slave mode.
It is recommended that a TVS be used on the related interface, to prevent electrostatic
discharge and protect integrated circuit (IC) components.
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2BDescription of the Application
Interfaces
37