MITSUI MTV-DV05, Руководство по обслуживанию

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SERVICE MANUAL
HEF4053 (NK01)
Triple 2-channel Analog Multiplexer/Demultiplexer
1. Description
The HEF4053 is a triple 2-channel analog
multiplexer/demultiplexer with a common enable
input (E). Each multiplexer/ demultiplexer has two
independent inputs/ outputs (Y
0
and Y
1
), a
common input/ output (Z), and select inputs (Sn).
Each also contains two-bidirectional analog
switches, each with one side connected to an
independent input/output (Y
0
and Y
1
) and the
other side connected to a common
input/output(Z).
With (E) LOW, one of the two switches is selected
(low impedance ON-state) by Sn. With E HIGH, all
switches are in the high impedance OFF-state,
independent of S
A
to S
C
.
V
DD
and V
SS
are the supply voltage connections
for the digital control inputs (S
A
to S
C
and E).
The V
DD
to V
SS
range is 3 to 15V.The analog
inputs/outputs (Y
0
,Y
1
and Z) can swing between
V
DD
as a positive limit and V
EE
as a negative limit.
V
DD
-V
EE
may not exceed 15 V.
For operation as a digital multiplexer/
demultiplexer, V
EE
is connected to V
SS
(typically
ground).
2. Block Diagram
Fig. 1
4
Functional Diagram
3. Function Table
Inputs
E Sn
Channel
On
L L Y
on
-Zn
L H Y
in
-Zn
H X none
Notes
H=HIGH state (the more positive voltage)
L=LOW state (the less positive voltage)
X=STATE is immaterial
4. Refer to Table 11 about Functions and Data of HEF4053’s Pins.
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