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13. BLOCK DIAGRAM (Handset)
14. CIRCUIT OPERATION (Handset)
14.1. Construction
The circuit mainly consists of DSP and RF unit as shown in the block diagram.
14.1.1. DSP:IC201
Function
- Battery Low, Power down defect circuit
- Ringer Generation
- Interface circuit
RF unit, speaker, mic, LED, Key scan, Headset
14.1.2. RF unit
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