Pioneer PDP-427XD - Page 206

PDP-427XD
206
1234
1234
C
D
F
A
B
E
• Regulator IC
• Audio Delay IC
Vref
ON/OFF
CIrcuit
Thermal
Shutdown
CIrcuit
Overcurrent
Protection
CIrcuit
VOUT
VIN
ON/OFF
VSS
Delay RAM
Serial Audio
Interface
ON/OFF 1
VSS 2
NC 3
VIN
VOUT
4
5
No. Pin Name I/O Pin Function
1 ON/OFF I Power OFF pin
2 VSS − Ground
3NC − Non connection
4 VIN I Voltage input
5 VOUT O Voltage output
No. Pin Name I/O Pin Function
1 SDI
2 LRI
3 BCKI
4 VSS − Ground
5 COUNT[0]
6 COUNT[1]
−
O
I
I
I
I
I
Delay time setting 1
Delay time setting 0
Serial clock input
LR clock input
Serial audio data input
Power supply (+2.5V)
Serial audio data output7 SDO
8 VDD
2
BCKI
3
LRI
2
SDI
1
1
4
5
SDO
COUNT[0]
COUNT[0]
7
65
Block Diagram
Pin Arrangement (Top view)
Block Diagram
S1170B25UC-OTA (MAIN ASSY : IC4105)
S1170B15UC-OTA (MAIN ASSY : IC4106)
NJU26901E2 (MAIN ASSY : IC4704)
Pin Function
Pin Function
SDI 1
VDD
8
LRI 2
SDO
7
BCKI 3
COUNT[1]
6
VSS 4
COUNT[0]
5
Pin Arrangement (Top view)
L/R in
Serial Audio
Interface
L/R out
BCKI
LRI
Control
Logic