Timing circuits/timing diagrams – Rainbow Electronics MAX4885E User Manual
Page 6
MAX4885E
Ultra-Low Capacitance 1:2 VGA
Switch with ±15kV ESD
6
_______________________________________________________________________________________
Timing Circuits/Timing Diagrams
INPUT
OUTPUT
V
OH
t
PHL
t
PLH
t
SKEW
= |t
PLH
- t
PHL
|
t
PD
= MAX (t
PLH
, t
PHL
)
1V
50%
0
50%
0.9V
50%
50%
0
R
L
= 1k
Ω
C
L
= 10pF
Figure 2. Propagation Delay and Skew Waveforms
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.
+5V
V
OUT
V
CC
SEL
V
IN
MAX4885E
CROSSTALK = 20log
✕
V
OUT
V
IN
NETWORK
ANALYZER
50
Ω
50
Ω
50
Ω
50
Ω
MEAS
REF
10nF
0 OR V
CC
50
Ω
GND
R0, G0, B0
R2, G2, B2
R1, G1, B1
INSERTION-LOSS = 20log
✕
V
OUT
V
IN
Figure 1. Insertion-Loss and Crosstalk