IC DESCRIPTION
IC, UPD780228GF
Pin No.Pin NameI/ODescriptionPin No.Pin NameI/ODescription
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1K-SCANOScan output to diode input (Active OL�).44I-SYNC-DET/I-RDS-SIGIOSD sync. AD input. RDS tuning signal level. AD input.
2O-PLL-CEOTuner PLL chip enable output.45I-JOG2IRotary encoder (JOG2). AD input.
3O-DATA (M)OSound CTRL, PLL, DOLBY PROLOGIC or DSP, AC-3 VOL, GEQ. Data output.46I-FU-JOG1IFunction selector rotary encoder (JOG1). AD input.
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4TUNE/IFCITuner TUNE/IFC detection input.47, 48I-KEY2, I-KEY1IKey 2, 1. AD input.
5O-STB (M)OSound CTRL, KEYCON strobe output.49I-MICIMicrophone signal level detector. AD input.
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6O-MUTEOSystem mute ON/OFF output.50AVSSNADND.
7O-CLK (M)OSound CTRL, PLL, DOLBY PROLOGIC or DSP, AC-3 VOL, GEQ. Clock output.51O-STB-31OGEQ IC chip enable output.
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8O-OSD (CE)OOSD chip enable output.52POWER-LEDOPower LED ON/OFF output (Active OH�).
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9/I-SYNC-DETOSystem power supply. ON/OFF output.53-64P35-P24OFL segment output (P35-P24).
10O-PRO-CE/O-DSP-CE ODOLBY PROLOGIC or DSP chip enable output.65P23/I-AM10KOFL segment output (P23)/supporting AM step initialization 10 kHz.
11NNNot used.66, 67P22/I-VF.KC.ECI/OFL segment output (P22, P21)/supporting VF, key control, ECHO. Diode input.
12TM-BASEIReference clock input for watch.68P20/I-AC3I/OFL segment output (P20)/supporting AC-3. Diode input.
13NOIC101. Strobe output from shift register (1).69-73P19-O-P15OFL segment output (P19-P15).
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14-16NNNot used.74P14/I-STEREOI/OFL segment output (P14). Turner/stereo detection input (stereo at OL�).
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17ICNGND.75P13/I-HPMUTEI/OFL segment output (P13). Headphones insertion detection input (HP insertion at OL�).
18VSSNGND.76-78P12-P10OFL segment output (P12-P10).
19VDDNPower supply pin.79VDD2NPower supply pin.
20, 21NNNot used.80-VFLN� Voltage.
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22CSODOLBY digital (AC-3) control. CS output.81-89P9-P1OFL segment output (P9-P1).
23SCKODOLBY digital (AC-3) control. Clock output.90-100G11-G1OFL grid output (G11-G1).
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.
5152 |
ACEC
