PIN No.
Symbol
I/O
Description
8
CC0
O
External capacitor
9
OP1-OUT
O
External capacitor 1 output
10
OP1-IN
I
External capacitor 1 input
11
OP2-OUT
O
External capacitor 2 output
12
OP2-IN
I
External capacitor 2 input
13
LPF2-IN
I
Low pass filter 2 input
14
LPF2-OUT
O
Low pass filter 2 output
15
LPF1-OUT
O
Low pass filter 1 input
16
LPF1-IN
I
Low pass filter 1 output
3.5.3 function introduction to CD4051
1. DESCRIPTION
The CD4051 is a single 8-channel multiplexer with three binary control inputs and inhibit input.
The three binary control input signals select 1 of 8 channels to be turned on and connect it to the single
out.
The operating voltage is as 3 to 18V and quiescent current is as low as 5 µA max. (at Vpp=5V ).
2. PIN CONFIGURATION
PIN No.
Symbol
I/O
Description
1
X4
I/O
Channel selection port 4
2
X6
I/O
Channel selection port 6
3
X
I/O
Channel selection output
4
X7
I/O
Channel selection port 7
5
X5
I/O
Channel selection port 5
6
INH
I
Inhibit
7
VEE
I/O
Negative Power Supply
8
GND
I
GND
9
C
I
Channel selection binary bit C
10
B
I
Channel selection binary bit B
11
A
I
Channel selection binary bit A
12
X3
I/O
Channel selection port
13
X0
I/O
Channel selection port 0
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Summary of Contents for AV311T
Page 1: ...service manual AV311T...