Sony STR-DB1070 Service Manual - Page 44

DIGITAL BOARD, IC1408, LC89056W-E DIGITAL AUDIO INTERFACE RECEIVER, Pin No., Pin Name, Description

Page 44 highlights

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

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44
STR-DB870/DB1070
DIGITAL BOARD
IC1408
LC89056W-E (DIGITAL AUDIO INTERFACE RECEIVER)
Pin No.
Pin Name
I/O
Description
1
DISEL
I
Input data select terminal (fixed at “L”)
2
DOUT
O
EIAJ data and parity output terminal
Not used (open)
3
DIN0
I
Amp integrate data input from the select switch (IC1406)
4
DIN1
O
Amp integrate data input terminal
Not used (fixed at “L”)
5
DIN2
I
Amp integrate data input terminal
Not used (fixed at “L”)
6
DGND
Ground terminal (for digital)
7
DVDD
Power supply terminal (+5V) (for digital)
8
R
I
Input terminal for VCO generator band adjustment
9
VIN
I
Input terminal for VCO self running frequency set
10
LPF
O
External LPF for PLL is connected to this terminal
11
AVDD
Power supply terminal (+5V) (for analog)
12
AGND
Ground terminal (for analog)
13
CKOUT
O
Clock signal output to the audio DSP1, 2 (IC1501, 1601)
14
BCK
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)