MAX4547 Maxim, MAX4547 Datasheet - Page 14

• Manufacturer Part Number: MAX4547
• Description: The MAX4545/MAX4546/MAX4547 are low-voltage T-switches designed for switching RF and video signals from DC to 300MHz in 50Ω and 75Ω systems
• Manufacturer: Maxim

Figure 6. Charge Injection
Figure 7. On Loss, Off Isolation, and Crosstalk
_________________________________Test Circuits/Timing Diagrams (continued)
Quad/Dual, Low-Voltage,
Bidirectional RF/Video Switches
14
______________________________________________________________________________________
V- IS CONNECTED TO GND (0V) FOR SINGLE-SUPPLY OPERATION.
MEASUREMENTS ARE STANDARDIZED AGAINST SHORT AT IC TERMINALS.
OFF ISOLATION IS MEASURED BETWEEN COM_ AND "OFF" NO_ OR NC_ TERMINAL ON EACH SWITCH.
ON LOSS IS MEASURED BETWEEN COM_ AND "ON" NO_ OR NC_TERMINAL ON EACH SWITCH.
CROSSTALK IS MEASURED FROM ONE CHANNEL TO ALL OTHER CHANNELS.
SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.
V- IS CONNECTED TO GND (0V) FOR SINGLE-SUPPLY OPERATION.
V
IN_
0V OR V+
50
IN_
IN_
GND_
GND_
10nF
MAX4545
MAX4546
MAX4547
MAX4545
MAX4546
MAX4547
10nF -5V
10nF
+5V
+5V
V+
V+
NO_ OR NC_
10nF
V-
-5V
V-
COM_
COM_
NO_
V
V
IN
OUT
V
NO
C
L
V
OUT
= 1000pF
= 0V
MEAS
50
50
V
V
OUT
IN_
ANALYZER
NETWORK
V+
0V
ERROR Q WHEN THE CHANNEL TURNS OFF.
Q = V
V
OUT
50
50
IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER
OUT
REF
x C
L
OFF ISOLATION = 20log
CROSSTALK = 20log
ON LOSS = 20log
V
OUT
V
V
V
V
V
V
OUT
OUT
OUT
IN
IN
IN