MEIG SLM770A - Page 48

SLM770A Module Hardware Design Manual
MeiG Smart Technology Co., Ltd 77/77
Mo dule
SPK_P
SPK_N
10pF
10pF
10pF
33pF
33pF
33pF
ESD
ESD
Micro
phone
Figure 24 Handset interface reference circuit
Note:
The microphone channel is sensitive to ESD, so be sure to add a protective circuit
MIC_P/N, SPK_P/N group internal cabling complies with differential cabling requirements