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IC BLOCK DIAGRAM/TERMINAL
FUNCTION (CD SECTION)
IC503
Pin
No.
1
2
3
4
5
6
7
8
9
10
11
IC506
Pin
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
.C78835M-TRM)
1/0
—
I
I
I
I
I
I
—
o
0
Terminal
Name
REFH
VrefH
MUTE
D/N
BCLK
DATA
LRCK
DVDD
CKOUT
XOUT
XIN
:XP-8131 2-342C
1/0
—
o
0
—
o
0
—
—
—
—
I
I
—
I
Terminal
Name
P.CONT
;D IN OUT
DATA
CLK
IN SW
SENS
TEST
Description
Reference voltage "High" terminal
Normally connect to AGND via the capacitol
Reference voltage "High" input terminal
Mute signal input terminal
High for soft mute ON.
Standard/double-speed
operation mode
select terminal
High for double-speed
operation,
Low for
standard operation
Bit clock input terminal
Digital audio data input terminal
Input in the 2's complement
form and on the
MSB-first basis.
LR clock input terminal
High for CH1 input, Low for CH2 input,
Digital line power supply terminal
Clock output terminal
392fs: 196fs clock
Other than 392fs: XIN frequency clock
Crystal oscillator output terminal (system
clock output terminal)
Crystal oscillator input terminal (system
clock input terminal)
Description
Not used
Power control output for power off eject
Outputs High when the compact disc
inserted is ready to be played.
Not used
Serial data output for DSP
Serial data transfer clock output for DSP
Not used
Not used
Not used
Not used
CD mechanism
DISC IN switch input
SENS input for DSP
Not used
Test mode setting terminal. Low for test
mode.
Pin
No.
12
13
14
15
16
17
18
19
20
21
22
23
24
Pin
No.
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1/0
I
I
I
I
I
I
I
—
o
0
—
1/0
I
I
I
I
I
I
—
—
—
—
—
—
—
—
Terminal
Name
DGND
INITB
EMP
FS 1
FS2
CKSL1
CKSL2
VrefL
REFL
CH20UT
AGND
CH1OUT
AVDD
Terminal
Name
HOT
:HUCK SM
GFS
FOK
SENS2
SENS1
ml
1: Input
O: Output
Description
Digital line ground terminal
Initialization
signal input terminal
Low for initialization.
De-emphasis
filter ON-OFF select terminal
High for ON, Low for OFF.
De-emphasis
filter's 32kHz/44. 1kHz/48kHz
mode select terminal
FS1
L
H
H
L
FS2
L
L
H
H
fs
44.lkHz
32kHz
48kHz
System clock select terminal
EEEa
Reference voltage "Low" input terminal
Reference voltage "Low" terminal
Normally connect to AGND via the capacitor
CH2 analog output terminal
Analog line ground terminal
CH1 analog output terminal
Analog line power supply terminal
~]
1: Input
O: Output
Description
CPU high temp. sensor
CD mechanism
disc chucking switch input
GFS input for DSP
Focus OK input from the servo signal
processor (SSP)
CD mechanism
DISC SENS2
phototransistor
input
CD mechanism
DISC SENS1
phototransistor
input
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
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