LG L240 Service Manual page 17

3. Circuit Description
3.2.4 Digital Core
The digital core of the MMM6000 consists of four major functional blocks:
• Receive coprocessor (RxCPROC)
• DigRF
• Transmit module (TXM)
• Transmit/receiver timing sequencer (TRXQ)
3.2.4.1 Receive coprocessor (RxCPROC)
The digital portion of the RX signal processing chain, consisting of decimation filters, a digital LO
generator, complex mixers, adjustable channel filters, and a DC adapt module. The initial conversion
is done by the sigma-delta modulator and the results are passed into the RxCPROC. Processed
signals are sent serially to the baseband IC through the DigRF interface port.
<Fig.4> Block Diagram of Rx coprocessor
- 18 -