Siemens S55 - Microphone; Battery

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S55/S57 Company Confidential © Copyright Siemens AG 12/02
7.3 Microphone
Pin Name IN/OUT Remarks
1 MICP1 I Speech signal. The same line carries the
microphone power supply.
2 GND_MIC
7.4 Battery
Pin Name Level Remarks
1 GND Ground
2 AKKU_TYP 0V...2.65V Recognition of battery/supplier
3 BATT+ 3 V... 4.5V Positive battery pole
4
XG242
XG181