Test circuits/timing diagrams (continued) – Rainbow Electronics MAX4912 User Manual
Page 11
MAX4910/MAX4911/MAX4912
Quad-SPDT, Clickless Audio Switches
with Negative Signal Handling
______________________________________________________________________________________
11
MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS 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 THE OTHER CHANNEL.
SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.
+5V
V
OUT
V
CC
CB_
NC_
COM_
NO_
V
IN
OFF-ISOLATION = 20log
V
OUT
V
IN
ON-LOSS = 20log
V
OUT
V
IN
CROSSTALK = 20log
V
OUT
V
IN
NETWORK
ANALYZER
50
Ω
50
Ω
50
Ω
50
Ω
MEAS
REF
10nF
0V OR V
CC
50
Ω
GND
MAX4910
MAX4911
MAX4912
Test Circuits/Timing Diagrams (continued)
Figure 5. On-Loss, Off-Isolation, and Crosstalk
CAPACITANCE
METER
NC_ or
NO_
COM_
GND
CB_
V
IL
OR V
IH
10nF
V
CC
f = 1MHz
V
CC
MAX4910
MAX4911
MAX4912
Figure 6. Channel Off-/On-Capacitance