Sony STR-DB1070 Service Manual - Page 44
DIGITAL BOARD, IC1408, LC89056W-E DIGITAL AUDIO INTERFACE RECEIVER, Pin No., Pin Name, Description
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STR-DB870/DB1070 • DIGITAL BOARD IC1408 LC89056W-E (DIGITAL AUDIO INTERFACE RECEIVER) Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Pin Name DISEL DOUT DIN0 DIN1 DIN2 DGND DVDD R VIN LPF AVDD AGND CKOUT BCK I/O Description I Input data select terminal (fixed at "L") O EIAJ data and parity output terminal Not used (open) I Amp integrate data input from the select switch (IC1406) O Amp integrate data input terminal Not used (fixed at "L") I Amp integrate data input terminal Not used (fixed at "L") - Ground terminal (for digital) - Power supply terminal (+5V) (for digital) I Input terminal for VCO generator band adjustment I Input terminal for VCO self running frequency set O External LPF for PLL is connected to this terminal - Power supply terminal (+5V) (for analog) - Ground terminal (for analog) O Clock signal output to the audio DSP1, 2 (IC1501, 1601) O Bit clock signal output to the A/D converter (IC1101) and audio DSP1 (IC1501) 15 LRCK O L/R sampling clock signal output to the A/D converter (IC1101) and audio DSP1, 2 (IC1501, 1601) 16 DATAO O Audio data output to the system controller (IC1703) and audio DSP1 (IC1501) 17 XSTATE O Clock status flag output to the system controller (IC1703) 18 DGND - Ground terminal (for digital) 19 DVDD - Power supply terminal (+5V) (for digital) 20 XMCK O Clock signal outout to the A/D converetr (IC1101) (24.576MHz) 21 XOUT O Clock output terminal Not used (open) 22 XIN I Clock input from the clock oscillator (IC1410) (24.576MHz) 23 EMPHA O Emphasis monitor output terminal "H": on Not used (open) 24 AUDIO O Audio transfer signal output to the audio DSP1 (IC1501) 25 CSFLAG O Not used (open) 26 to 29 F0/P0/C0 to F3/P3/C3 O Terminal for check Not used (open) 30 DVDD - Power supply terminal (+5V) (for digital) 31 DGND - Ground terminal (for digital) 32 AUTO O Not used (open) 33 BPSYNC O Not used (open) 34 ERROR O Error mute output to the system controller (IC1703) and audio DSP1 (IC1501) 35 DO O Data output to the system controller (IC1703) 36 DI I Data input from the system controller (IC1703) 37 CE I Chip enable signal input from the system controller (IC1703) 38 CLK I Clock signal input from the system controller (IC1703) 39 XSEL I Clock select terminal (fixed at "H") 40, 41 MODE0, MODE1 I Mode setting input terminal (fixed at "L") 42 DGND - Ground terminal (for digital) 43 DVDD - Power supply terminal (+5V) (for digital) 44, 45 DOSEL0, DOSEL1 I Data format select signal input terminal (fixed at "L") 46 CKSEL0 I System clock select signal input terminal (fixed at "L") 47 CKSEL1 I System clock select signal input from the system controller (IC1703) 48 XMODE I Reset signal input from the system controller (IC1703) 44