MAX456 View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX456 Datasheet PDF : 12 Pages
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8 x 8 Video Crosspoint Switch
_______________________________________________________Dynamic Test Circuits
IN0
OUT0
IN1
OUT1
IN2
OUT2
IN3 MAX456 OUT3
IN4
OUT4
IN5
OUT5
IN6
OUT6
IN7
OUT7
LOAD
VOUT
+5V
VIN = 2Vp-p, SWEEP FREQUENCY
RS = 75Ω
-3dB Bandwidth (Notes 1-4)
IN0
OUT0
VOUT
IN1
OUT1
VOUT
IN2
OUT2
VOUT
IN3 MAX456 OUT3
VOUT
IN4
OUT4
VOUT
IN5
OUT5
VOUT
IN6
OUT6
VOUT
IN7
OUT7
VOUT
LOAD
+5V
VIN = 2Vp-p @ 5MHz
RS = 75Ω
All-Channel Off Isolation (Notes 1, 5-8)
7x 75Ω
IN0
OUT0
IN1
OUT1
IN2
OUT2
IN3 MAX456 OUT3
IN4
OUT4
IN5
OUT5
IN6
OUT6
IN7
OUT7
LOAD
VIN = 2Vp-p @ 5MHz
RS = 75Ω
VOUT
VOUT
VOUT
VOUT
VOUT
VOUT
VOUT
+5V
IN0
OUT0
VOUT
IN1
OUT1
75Ω
IN2
OUT2
IN3 MAX456 OUT3
IN4
OUT4
IN5
OUT5
IN6
OUT6
IN7
OUT7
LOAD
+5V
VIN = 2Vp-p @ 5MHz
RS = 75Ω
Single-Channel Crosstalk (Notes 1, 5, 9-11)
All-Channel Crosstalk (Notes 1, 5, 9, 11, 12)
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
Note 7:
Note 8:
Note 9:
Note 10:
Note 11:
Note 12:
Connect LOAD (pin 8) to +5V (internal 400Ω loads on at all outputs).
Program any one input to connect to any one output (see Table 1 or 2 for programming codes).
Turn on buffer at the selected output (see Table 1 or 2).
Drive the selected input with VIN, and measure VOUT at the -3dB frequency at the selected output.
Program each numbered input to connect to the same numbered output (IN0 to OUT0, IN1 to OUT1, etc.).
See Table 1 or 2 for programming codes.
Turn off all output buffers (see Table 1 or 2).
Drive all inputs with VIN and measure VOUT at any output.
Isolation (in dB) = 20log10 (VOUT/VIN).
Turn on all output buffers (see Table 1 or 2).
Drive any one input with VIN and measure VOUT at any undriven output.
Crosstalk (in dB) = 20log10 (VOUT/VIN).
Drive all but one input with VIN and measure VOUT at the undriven output.
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