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HD74HC126P(IC751) :CD CHANGER
1.Terminal layout
1C
1
1A
2
1Y
3
2C
4
2A
5
2Y
6
GND
7
UPC1228HA(IC901):Head amp
IN1
1
ANP1
NFB1
2
OUT1
3
VCC
4
GND
5
OUT2
6
NFB2
7
ANP2
IN2
8
UPC1228HA
2.Pin function
Input
14
Vcc
13
4C
C
12
4A
L
11
4Y
10
3C
H
9
3A
H
8
3Y
Note)
H
:
L
:
X
:
Z
:
Output
A
X
L
H
High level
Low level
"H" or "L"
Off state of three state output(High impedance)
KS-FX201
Y
Z
L
H
1-21
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