Sony STR-DE845 Service Manual page 53

• DIGITAL BOARD IC1503 AK4527 (A/D, D/A CONVERTER)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12, 13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
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Pin Name I/O
SDOS I
Data source select terminal "L": internal ADC output "H": DAUX input
I2C I
Control mode select terminal "L": 3-wire serial "H": I2C bus
SMUTE I Soft mute signal input from the system controller (IC1201)
BCLK I
Audio serial data clock signal input from the digital audio interface receiver (IC1101)
LRCK I
Input channel clock signal input from the digital audio interface receiver (IC1101)
SDT1 I
DAC1 audio serial data input from the audio DSP (IC1401)
SDT2 I DAC2 audio serial data input from the audio DSP (IC1401)
SDT3 I
DAC3 audio serial data input from the audio DSP (IC1401)
SDTO O
audio serial data output to the dolby digital audio decoder (IC1301)
DAUX I Audio serial data input terminal Not used (fixed at "L")
Double speed sampling mode signal input from the system controller (IC1201)
DFS I
"L": normal speed "H": double speed
DEM1, DEM0 I De-emphasis signal input terminal Not used (fixed at "L")
TVDD —
Power supply terminal (+5V) (for output buffer )
D5V —
Power supply terminal (+5V) (digital system)
DGND —
Ground terminal (digital system)
PD I Power down and reset signal input terminal "L": power down and reset
ICKS2 I
Clock select 2 input terminal (fixed at "L" in this set)
ICKS1 I
Clock select 1 input terminal (fixed at "H" in this set)
ICKS0 I
Clock select 0 input terminal (fixed at "H" in this set)
CAD1 I Chip address 1 input terminal Used during the serial control mode (fixed at "L" in this set)
CAD0 I
Chip address 0 input terminal Used during the serial control mode (fixed at "L" in this set)
LOUT3 O
L-ch 3 analog output to the select switch (IC1502)
ROUT3 O R-ch 3 analog output to the select switch (IC1502)
LOUT2 O
L-ch 2 analog output to the select switch (IC1502)
ROUT2 O
R-ch 2 analog output to the select switch (IC1502)
LOUT1 O
L-ch 1 analog output to the select switch (IC1502)
ROUT1 O R-ch 1 analog output to the select switch (IC1502)
LIN– I
L-ch analog negative input from the line amp (IC1504)
LIN+ I
L-ch analog positive input from the line amp (IC1504)
RIN– I
R-ch analog negative input from the line amp (IC1504)
RIN+ I R-ch analog positive input from the line amp (IC1504)
DZF2 O
Zero input detect 2 terminal
Common voltage output terminal
VCOM O
Large external capacitor is used to reduce power supply noise
VREFH I
Positive voltage reference input terminal (+5V)
A5V —
Power supply terminal (+5V) (analog system)
AGND — Ground terminal (analog system)
DZF1 O
Zero input detect 1 terminal
MCLKI I
Master clock input from the digital audio interface receiver (IC1101)
S/P I
Parallel or serial select terminal "L": serial control mode (fixed at "L" in this set)
CS I Chip select signal input from the system controller (IC1201)
CCLK I
Clock signal input from the system controller (IC1201)
CDTI I
Control signal output to the system controller (IC1201)
LOOP1 O
Loop back mode 1 signal output terminal (fixed at "L" in this set)
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Description
Not used (open)
Not used (open)
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