MAX4570 Maxim, MAX4570 Datasheet - Page 9

• Manufacturer Part Number: MAX4570
• Description: The MAX4550/MAX4570 serial-interface, programmable, dual 4x2 audio/video crosspoint switches are ideal for multimedia applications
• Manufacturer: Maxim

MAX4550
8, 24
10
11
12
13
—
14
—
15
—
16
—
17
18
19
20
21
22
23
25
26
27
28
1
2
3
4
5
6
7
9
PIN
MAX4570
8, 24
11
12
13
15
16
17
19
20
21
22
23
25
26
27
28
10
—
—
14
—
—
18
Audio/Video Analog Crosspoint Switches
1
2
3
4
5
6
7
9
_______________________________________________________________________________________
Serially Controlled, Dual 4x2, Clickless
COM2A
COM2B
COM1B
COM1A
NAME
BIASH
NO3A
NO3B
BIASL
NO4A
NO4B
DOUT
NO1A
NO1B
NO2A
NO2B
SCLK
GND
SDA
SCL
DIN
Q0
Q1
CS
Q2
Q3
SB
V+
A0
A1
SA
V-
Shunt Input to Crosspoint B. Use for shunt capacitor or AC ground connection to
improve off-isolation, or as an additional input to switch matrix B.
Input 3 to Crosspoint A
Input 3 to Crosspoint B
High Side of Bias Network. Use to give the outputs a DC bias when inputs are
AC-coupled (refer to the Using the Internal Bias Resistors section).
Low Side of Bias Network. Use to give the outputs a DC bias when inputs are
AC-coupled (refer to the Using the Internal Bias Resistors section).
Input 4 to Crosspoint A
Input 4 to Crosspoint B
Positive Supply Voltage. Supply range is +2.7V to +5.25V. Connect pin 8 to pin 24 exter-
nally.
Output 2 of Crosspoint A
Auxiliary Output 0
Output 2 of Crosspoint B
Auxiliary Output 1
LSB+1 of 2-Wire Serial-Interface Address Field
Chip Select of 3-Wire Interface. Logic low on CS enables serial data to be clocked in to
device. Programming commands are executed on CS’s rising edge.
2-Wire Serial-Interface Clock Input
3-Wire Serial-Interface Clock Input
2-Wire Serial-Interface Data Input. Data is clocked in on SCL’s rising edge.
3-Wire Serial-Interface Data Input. Data is clocked in on SCLK’s rising edge.
LSB+2 of 2-Wire Serial-Interface Address Field
Data Output of 3-Wire Interface. Input data is clocked out and SCLK’s falling edge
delayed by 16 clock cycles. DOUT remains active when CS is high.
Auxiliary Output 2
Output 1 of Crosspoint A
Auxiliary Output 3
Output 1 of Crosspoint A
Ground
Input 1 to Crosspoint A
Input 1 to Crosspoint B
Negative Supply Voltage. Supply range is from -5.25V to 0.
Input 2 to Crosspoint A
Input 2 to Crosspoint B
Shunt Input to Crosspoint A. Use for shunt capacitor or AC ground connection to
improve off-isolation, or as an additional input to switch matrix A.
FUNCTION
Pin Description
9