Gpio Interface Compatibility Design - Huawei MU509 Hardware Migration Manual

HUAWEI 30 mm × 30 mm LGA Module
Hardware Migration Guide
Figure 2-12 The circuit diagram of audio interface
LGA

2.4 GPIO Interface Compatibility Design

Please note the different signal level of GPIO between MU509/MC509 and
MU609/ME209u-526/ME909u/MU709/ME909s. The signal of MU509 and MC509 are
CMOS 2.6 V and MU609, MU709, ME209u-526, ME909u and ME909s are CMOS
1.8 V. Therefore, you must consider the compatibility during circuit designing.
Issue 08 (2016-12-12)
MIC1_P
MIC1_N
33 pF
EAR_OUT_P
EAR_OUT_N
33 pF 33 pF
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100 pF
33 pF
100 pF
LGA Interface Differences
ESD protection
Network
Connector
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