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Siemens TC35i User Manual

Page 24

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TC35i Terminal Hardware Interface Description

Confidential / Released


TC35i_T_HD_v01.05 Page

24/37

10.07.2003

baseband controller to calculate e.g. amplifications, sidetone, echo cancellation or noise
suppression.

Full rate, half rate and enhanced full rate, speech and channel encoding including voice
activity detection (VAD) and discontinuous transmission (DTX) and digital GMSK modulation
are also performed on the GSM baseband processor.

Note: With regard to acoustic shock, the cellular application must be designed to avoid

sending false AT commands that might increase the amplification, e.g. for a high
sensitive earpiece.