UPC1854A Datasheet, PDF (5/48 Pages) NEC – I2C BUS-COMPATIBLE US MTS PROCESSING LSI

µPC1854A
CONTENTS
1. PIN EQUIVALENT CIRCUITS .............................................................................................................................. 6
2. BLOCK FUNCTIONS .......................................................................................................................................... 13
2.1 Stereo Demodulation Block ..................................................................................................................... 14
2.2 SAP Demodulation Block ........................................................................................................................ 15
2.3 dbx Noise Reduction Block ..................................................................................................................... 16
2.4 Matrix Block .............................................................................................................................................. 17
3. I²C BUS INTERFACE ......................................................................................................................................... 18
3.1 Data Transfer ........................................................................................................................................... 19
3.2 Data Transfer Format .............................................................................................................................. 20
4. I²C BUS COMMANDS ........................................................................................................................................ 22
4.1 Subaddress List ....................................................................................................................................... 22
4.2 Setting Procedure .................................................................................................................................... 23
4.3 Explanation of Write Register .................................................................................................................. 25
4.4 Explanation of Read Register ................................................................................................................. 28
5. MODE MATRIX ................................................................................................................................................... 30
5.1 L-, R-Channel Output (LOT, ROT pins) Matrix ....................................................................................... 30
5.2 Normal Output (NOT pin) Matrix ............................................................................................................. 31
6. USAGE CAUTIONS ............................................................................................................................................ 32
6.1 Caution on Shock Noise Reduction ........................................................................................................ 32
6.2 Supply Voltage ......................................................................................................................................... 32
6.3 Impedance of Input and Output Pins ...................................................................................................... 32
6.4 Drive Capability of Output Pins ............................................................................................................... 32
6.5 Caution on External Components ........................................................................................................... 33
6.6 Change of Electrical Characteristics by External Components ............................................................. 33
7. ELECTRICAL SPECIFICATIONS ...................................................................................................................... 34
8. MEASURING CIRCUIT ....................................................................................................................................... 44
9. PACKAGE DRAWINGS ..................................................................................................................................... 45
10. RECOMMENDED SOLDERING CONDITIONS ................................................................................................ 47
Data Sheet S12816EJ3V0DS00
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