Datasheet

MAX4550/MAX4570
Serially Controlled, Dual 4x2, Clickless
Audio/Video Analog Crosspoint Switches
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Functional Diagram
20
22
26
2
6
28
NO4A
NO3A
NO2A
NO1A
COM1A
SA
MAX4550
MAX4570
SWITCH MATRIX ‘A’
18
23
27
3
7
1
NO4B
NO3B
NO2B
NO1B
COM1B
9
COM2A
11
COM2B
SB
8, 24
V+
25
V-
21
GND
15
SDA/(DIN)
14
SCL/(SCLK)
13
A0/(CS)
16
A1/(DOUT)
4
BIASH
5
BIASL
10
Q0
12
Q1
17
Q2
19
Q3
SWITCH MATRIX ‘B’
BIAS RESISTOR NETWORK
10
AUXILIARY OUTPUTS
CONTROL
LOGIC
SWITCH STATES SHOWN IN POWER-UP STATE.
AUXILIARY OUTPUTS ARE LOW IN POWER-UP STATE.
( ) ARE FOR MAX4570
10
4
4