Function Table Of Ic - Sharp XL-1000H Service Manual

IC401 VHiLC75342M-1: Function/Volume Equalizer (LC75342M)
Pin No.
Port 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] -> [L]. Each analog switch is activated.
Data transfer enabled at [H] level.
3 VSS Ground pin.
4 TEST Electronic volume control pin. To be set to the VSS potential.
5 LOUT Volume + equalizer output pin.
6 LBASS2 Bass-band filter comprising capacitor and resistor connection pin.
7 LBASS1 Bass-band filter comprising capacitor and resistor connection pin.
8 LTRE Capacitor connection pin comprising treble band filter.
9 LIN Volume + equalizer input pin.
10 LSEL0 Input selector output pin.
11 L4 Input signal pin.
12* L3 Input signal pin.
13 L2 Input signal pin.
14 L1 Input signal pin.
15* NC No CONNECT pin. To be open or connected to VSS.
16* NC No CONNECT pin. To be open or connected to VSS.
17 R1 Input signal pin.
18 R2 Input signal pin.
19* R3 Input signal pin.
20 R4 Input signal pin.
21 RSEL0 Input selector output pin.
22 RIN Volume + equalizer input pin.
23 RTRE Capacitor connection pin comprising treble band filter.
24 RBASS1 Bass-band filter comprising capacitor and resistor connection pin.
25 RBASS2 Bass-band filter comprising capacitor and resistor connection pin.
26 ROUT Volume + equalizer output pin.
27* NC No CONNECT pin. To be open or connected to VSS.
28 Vref 0.5 x VDD voltage generation block for analog ground. Capacitor of several 10µF to be connected between
Vref and AWSS (VSS) as a counter measure against power ripple.
29 VDD Supply pin.
30 CL Serial data and clock input pin for control.
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

FUNCTION TABLE OF IC

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Function
XL-1000H/1100H