Rainbow Electronics MAX4885AE - Manual (Page 5)

High-Bandwidth, VGA 2:1 Switch
with ±15kV ESD Protection
MAX4885AE
5
Test Circuits/Timing Diagrams
Figure 3. Insertion Loss and Crosstalk
Figure 1. Enable/Disable Time Figure 2. Rise/Fall Time
V L R L = 2.2kΩ
C L = 10pF
0V
V CC
0V
50%
50%
50%
50%
SEL1,
SEL2
H0, V0
t OFF t ON
R L = 2.2kΩ
C
L
= 10pF
80%
20%
80%
20%
V CC
0V H0, V0
t R t F
MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT IC TERMINALS.
INSERTION LOSS IS MEASURED BETWEEN R0 AND R1 OR R2 ON EACH SWITCH.
CROSSTALK IS MEASURED FROM ONE CHANNEL TO THE OTHER CHANNEL.
SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.
V OUT
SEL1, SEL2
V IN
CROSSTALK = 20log
NETWORK
ANALYZER
50Ω
50Ω 50Ω
50Ω
MEAS REF
GND OR V L
50Ω
GND
R0, G0, B0
R2, G2, B2 R1, G1, B1
INSERTION-LOSS = 20log
V OUT
V IN
V OUT
V IN MAX4885AE
+5V
V
CC
1μF
+3.3V
V
L
1μF
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