Sony STR-DB780 Service Manual

49
STR-DA1ES/DB780
5-31. IC PIN FUNCTION DESCRIPTION
• DIGITAL BOARD IC1101 LC89056W-E (DIGITAL AUDIO INTERFACE RECEIVER)
Pin No.
Pin Name
I/O Description
1 DISEL
I
Selection signal input terminal of data input terminal Fixed at “L” in this set
2
DOUT
O
Digital data output to the external output terminal
3 to 5
DIN0 to DIN2
I
Digital data input from the external input terminal
6
DGND
—
Ground terminal (for digital)
7
DVDD
—
Power supply terminal (+3.3V) (for digital)
8
R
I
Input terminal for VCO gain control
9
VIN
I
Input terminal for VCO free-run frequency setting
10
LPF
O
PLL loop filter setting terminal
11
AVDD
—
Power supply terminal (+3.3V) (for analog)
12
AGND
—
Ground terminal (for analog)
13
CKOUT
O
Audio clock signal output to the audio digital signal processor
14
BCK
O
Bit clock signal (2.8224 MHz) output to the audio digital signal processor
15 LRCK
O
L/R sampling clock signal (44.1 kHz) output to the audio digital signal processor
16 DATAO
O
Audio serial data output to the audio digital signal processor and system controller
17 XSTATE
O
Source clock selection monitor output to the system controller
18 DGND
—
Ground terminal (for digital)
19 DVDD
—
Power supply terminal (+3.3V) (for digital)
20 XMCK
O
Master clock signal output terminal Not used
21 XOUT
O
System clock output terminal (12.288 MHz)
22 XIN
I
System clock input terminal (12.288 MHz)
23 EMPHA
O
Channel status emphasis information output terminal Not used
24 AUDIO
O
Channel status bit 1 output to the audio digital signal processor
25
CSFLAG
O
Channel status head 40 bit renewal flag output terminal Not used
26 to 29
F0/P0/C0 to
F3/P3/C3
O
Output terminal of input frequency calculation result Not used
30 DVDD
—
Power supply terminal (+3.3V) (for digital)
31 DGND
—
Ground terminal (for digital)
32 AUTO
O
Not used
33 BPSYNC
O
Non-PCM burst preamble sync signal output terminal Not used
34
ERROR
O
PLL lock error signal and data error flag output to the audio digital signal processor and system
controller
35 DO
O
Read data output to the system controller
36 DI
I
Write data input from the system controller
37 CE
I
Chip enable signal input from the system controller
38 CLK
I
Clock signal input from the system controller
39 XSEL
I
Selection signal input terminal of crystal oscillator frequency Fixed at “H” in this set
40, 41
MODE0, MODE1 I
Mode setting terminal
42 DGND
—
Ground terminal (for digital)
43 DVDD
—
Power supply terminal (+3.3V) (for digital)
44, 45
DOSEL0, DOSEL1 I
Output data format selection signal input terminal Fixed at “L” in this set
46 CKSEL0
I
Output clock selection signal input terminal Fixed at “L” in this set
47 CKSEL1
I
Output clock selection signal input from the system controller
48 XMODE
I
System reset signal input from the system controller “L”: reset

Sony STR-DB780 Specifications

General

Type	Stereo Receiver
Total Harmonic Distortion	0.09 %
Digital inputs	2 Optical, 1 Coaxial
Weight	10.5 kg
Video inputs	composite
Video outputs	1 composite, 1 S-Video
Output Power	100 Watts (8 Ohms, 20 Hz - 20 kHz, 0.09% THD)
Signal-to-Noise Ratio	96 dB (Line in)
Input Sensitivity	150 mV (Line in)