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BU1924 Datasheet(PDF) 3 Page - Rohm |
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BU1924 Datasheet(HTML) 3 Page - Rohm |
3 / 5 page BU1924 / BU1924F Audio ICs ! ! ! ! Pin descriptions Pin No. Pin name Symbol Functions Input/Output type 1 QUAL Demodulator quality Type C Good data : High, bad data : Low Refer to output data timing 6VSS1 7 8 2 RDATA Demodulator data 9T2 Test input Type B Open or connected to ground 10 T1 3 Vref Reference voltage 4 MUX Input Type E Type D 1/2 VDD1 (refer to input/output circuits) Composite signal input (refer to input/output circuits) 11 VDD2 Digital power supply 4.5V to 5.5V 12 VSS2 13 XI Crystal oscillator Type A Connects to 4.332MHz oscillator (refer to input/output circuits) 14 XO 15 (N.C.) −− Type C 16 RCLK Demodulator clock 1187.5Hz clock (refer to the timing diagram) 5VDD1 Analog power supply 4.5V to 5.5V CMP Comparator input Type D C-junction (refer to input/output circuits ) − − VSS3 GND − − − − ! ! ! ! Input / Output circuits Type A Type B Type D 10M Ω Type C Type E + − + |
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