Sharp CD-E500 Service Manual page 47

IC601 VHiLC75341M-1: Audio Processor (LC75341M)
Pin No. Terminal Name
1 DI
2 CE
3 VSS
4 LOUT
5 LBASS
6 LTRE
7 LIN
8 LSEL0
9-12 L4-1
IC601 VHiLC75341M-1: Audio Processor (LC75341M)
CD
9
L4
Tuner
10
L3
Tape
11
L2
Video
12
L1
R1 13
14
R2
R3
15
16
R4
Function
Serial data and clock input pin
for control.
Chip enable pin.
Data written into an internal latch
in a timing of "H" to "L".
Each analog switch is activated.
Data transfer enabled at "H" level.
Ground pin.
Bass band filter comprising
capacitor and resistor connection
pin and bass/treble output pin.
Bass band filter comprisingcapacitor
and resistor connection pin.
Treble band filter comprising
capacitor and resistor connection
pin.
Volume + equaliser output pin
Input selector output pin.
Input signal pin.
8 7 6
CONTROL
CIRCUIT
CONTROL
CIRCUIT
CONTROL
CIRCUIT
17 18 19
Figure 47 BLOCK DIAGRAM OF IC
– 47 –
Pin No. Terminal Name
13-16 R1-4
17 RSEL0
18 RIN
19 RTRE
20 RBASS
21 ROUT
22 VREF
23 VDD
24 CLK
5 4
LVref
CCB
INTERFACE
RVref
20 21
CD-E500
CD-E55/E44
Function
Input signal pin.
Input selector output pin.
Volume + equaliser output pin
Treble band filter comprising
capacitor and resistor connection
pin.
Bass band filter comprisingcapacitor
and resistor connection pin.
Bass band filter comprising
capacitor and resistor connection
pin and bass/treble output pin.
0.5x VDD voltage generation block
for analog ground. Capacitor of
several 10µF to be connected
between VREF and AWSS (VSS) as
a countermeasure against power
ripple.
Supply pin
Serial data and clock input pin
for control.
3 VSS
2 CE
1
DI
24 CLK
23
VDD
22 VREF