Quad/Dual, Low-Voltage,

Bidirectional RF/Video Switches

14

______________________________________________________________________________________

V+

0V

ERROR Q WHEN THE CHANNEL TURNS OFF.

Q =

V+

IN_

NO_ OR NC_

COM_

V- IS CONNECTED TO GND (0V) FOR SINGLE-SUPPLY OPERATION.

50

Ω

MAX4565

MAX4566

MAX4567

+5V

10nF

GND_

V-

10nF

-5V

Figure 5. Charge Injection

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.

+5V

V+

IN_

NO_

COM_

MAX4565

MAX4566

MAX4567

OFF ISOLATION = 20log

ON LOSS = 20log

CROSSTALK = 20log

NETWORK

ANALYZER

50

Ω

50

Ω

50

Ω

50

Ω

MEAS

REF

10nF

0V OR V+

GND_

V-

10nF -5V

Figure 6. On Loss, Off Isolation, and Crosstalk

_________________________________Test Circuits/Timing Diagrams (continued)