IC DESCRIPTION
IC, UPD780228GF
Pin No.Pin NameI/ODescription
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1K-SCANOScan output to diode input (Active OL�).
2O-PLL-CEOTuner PLL chip enable output.
3O-DATA (M)OSound CTRL, PLL, DOLBY PROLOGIC or DSP, AC-3 VOL, GEQ. Data output.
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4TUNE/IFCITuner TUNE/IFC detection input.
5O-STB (M)OSound CTRL, KEYCON strobe output.
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6O-MUTEOSystem mute ON/OFF output.
7O-CLK (M)OSound CTRL, PLL, DOLBY PROLOGIC or DSP, AC-3 VOL, GEQ. Clock output.
8O-OSD (CE)OOSD chip enable output.
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9/I-SYNC-DETOSystem power supply. ON/OFF output.
10O-PRO-CE/O-DSP-CE ODOLBY PROLOGIC or DSP chip enable output.
11NNNot used.
12TM-BASEIReference clock input for watch.
13NOIC101. Strobe output from shift register (1).
14-16NNNot used.
17ICNGND.
18VSSNGND.
19VDDNPower supply pin.
20, 21NNNot used.
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22CSODOLBY digital (AC-3) control. CS output.
23SCKODOLBY digital (AC-3) control. Clock output.
24SIODOLBY digital (AC-3) control. Data output.
25SOIDOLBY digital (AC-3) control. Data input.
26SDAICODEC IC (CS4226) control. Data output.
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27ADO/CSOCODEC IC (CS4226) control. CS output.
28I-RDS-CLKIRDS clock input (external interrupt).
29I-RDS-DATAIRDS data input.
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30RESETNReset.
31O-CONT.1OMaster VOL control output for SL/SR.
Master VOL control output for center/SUB-woofer (TRIM control output for center/
32O-CONT.2O
SUB-woofer).
33OSD-CLKOOSD clock output.
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34I-RMCIRemote control input.
35OSD-DATAOOSD data output.
36C-SHIFTOMicroprocessor clock shift output (Active OH�).
37VDD1NPower supply pin.
38X1NConnected to 5.76MHz oscillator.
39X2NConnected to 5.76MHz oscillator.
40VSS1NGND.
41AVDDNPower supply pin.
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42HOLDISystem power supply voltage monitoring. AD input.
43I-RE-VOLIRotary encoder (VOL). AD input.
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