LC72717PW: Mobile FM Multiplex Broadcast Demodulator (DARC) Receiver
The LC72717PW is a data demodulation LSI for receiving FM multiplex broadcasts for mobile reception in the DARC format. This LSI includes an on-chip bandpass filter for extracting the DARC signal from the FM baseband signal. It also supports ITU-R recommended FM multiplex frame structures (methods A, A’, B, and C) and can implement a compact, multifunction DARC reception system. The LC72717PW’s package, pin assignment and electrical characteristics are same as the LC72715PW (VICS-LSI). Functionally, the LC72717PW is a product that VICS function is removed from the LC72715PW. The LC72717PW is also control-compatible with the LC72711LW. Note that a contract with the NHK Engineering System, Inc. may be required to produce DARC compatible products in case, please contact with the NHK Engineering System, Inc.
Features- Adjustment-free 76kHz SCF bandpass filter
- Supports all FM multiplex frame structures under CPU control.
- MSK delay detection system based on a 1T delay.
- Error correction function based on a 2T delay (in the MSK detection stage)
- Digital PLL based clock regeneration function
- Shift-register 1T and 2T delay circuits
- Block and frame synchronization detection circuits
- Functions for setting the number of allowable BIC errors and the number of synchronization protection operations.
- Error correction using (272, 190) codes
- Built-in layer 4 CRC code checking circuit
- On-chip frame memory and memory control circuit for vertical correction
- 7.2MHz crystal oscillator circuit
- Two power saving modes : STNBY and EC STOP
- Applications can use either a parallel CPU interface (DMA) or a CCB serial interface.
- Supply voltage : 2.7V to 3.6V
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Application Notes (1)
Package Drawings (1)
Data Sheets (1)
Evaluation Board Documents (4)
Evaluation/Development Tool Information
| Product | Status | Compliance | Short Description |
|---|
| LC72717PWGEVB | Active | Pb-free | FM Composite Signal Evaluation Board |
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| LC72717PW-H | Active | Pb-free
Halide free | SPQFP-64 / SQFP-64 | 131AK | 3 | Tray JEDEC | 800 | $10.4517 |
| LC72717PW-NH | Active | Pb-free
Halide free | SPQFP-64 / SQFP-64 | 131AK | 3 | Tape and Reel | 1000 | $10.4517 |
Specifications
| Product | Function | Control Type | fs Max (kHz) | Power Dissipation Max (mW) | Supply Voltage Min (V) | Supply Voltage Max (V) | Operating Temp Min (°C) | Operating Temp Max (°C) |
|---|
| LC72717PW-H | Mobile FM Multi Broadcast Demodulator | Parallel | | 200 | 2.7 | 3.6 | -40 | 85 |
| LC72717PW-NH | Mobile FM Multi Broadcast Demodulator | Parallel | | 200 | 2.7 | 3.6 | -40 | 85 |
