Sharp CD-MPX100E Service Manual page 48

CD-MPX100E
IC601 VHiLC75341/-1: Audio processor (LC75341)
Pin No. Terminal Name
1 DI Serial data and clock input pin for control.
2 CE 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.
3 VSS Ground pin.
4 LOUT Bass band filter comprising
capacitor and resistor connection pin and bass/treble output pin.
5 LBASS Bass band filter comprising capacitor and resistor connection pin.
6 LTRE Treble band filter comprising capacitor and resistor connection pin.
7 LIN Volume + equalizer output pin.
8 LSEL0 Input selector output pin.
9-12 L4-1 Input signal pin.
13-16 R1-4 Input signal pin.
17 RSEL0 Input selector output pin.
18 RIN Volume + equalizer output pin
19 RTRE Treble band filter comprising capacitor and resistor connection pin.
20 RBASS Bass band filter comprising capacitor and resistor connection pin.
21 ROUT Bass band filter comprising capacitor and resistor connection pin and bass/treble output pin.
22 VREF 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.
23 VDD Supply pin
24 CLK Serial data and clock input pin for control.
CD
9
L4
Tuner
L3 10
Tape
11
L2
Video
12
L1
R1 13
R2 14
R3
15
16
R4
8 7 6
CONTROL
CIRCUIT
CONTROL
CIRCUIT
CONTROL
CIRCUIT
17 18 19
Figure 8-6 BLOCK DIAGRAM OF IC
8 – 6
Function
5 4
LVref
CCB
INTERFACE
RVref
20 21
3 VSS
2 CE
1
DI
24 CLK
23
VDD
VREF
22