Test circuits/timing diagrams – Rainbow Electronics MAX4912 User Manual
Page 10
MAX4910/MAX4911/MAX4912
Quad-SPDT, Clickless Audio Switches
with Negative Signal Handling
10
______________________________________________________________________________________
tr < 5ns
tf < 5ns
50%
0V
LOGIC
INPUT
R
L
COM_
GND
CB_
C
L
INCLUDES FIXTURE AND STRAY CAPACITANCE.
V
NO_
V
CC
t
OFF
0V
NO_
OR NC_
0.8 x V
0UT
0.8 x V
OUT
t
ON
V
OUT
SWITCH
OUTPUT
LOGIC
INPUT
CB DEPENDS ON SWITCH CONFIGURATION;
INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
V
CC
C
L
V
CC
V
OUT
MAX4910
MAX4911
MAX4912
Test Circuits/Timing Diagrams
Figure 2. Switching Time
50%
V
CC
0V
LOGIC
INPUT
V
OUT
0.8 x V
OUT
t
BBM
LOGIC
INPUT
R
L
GND
C
L
INCLUDES FIXTURE AND STRAY CAPACITANCE.
NO_
CB_
NC_
V
OUT
V
CC
V
CC
C
L
V
N_
COM_
MAX4910
MAX4911
MAX4912
Figure 3. Break-Before-Make Interval
V
GEN
GND
COM_
C
L
V
OUT
V
CC
V
OUT
CB_
OFF
ON
OFF
∆V
OUT
Q = (
∆V
OUT
)(C
L
)
NC_
LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES
THAT HAVE THE OPPOSITE LOGIC SENSE.
OFF
ON
OFF
CB_
V
IL
TO V
IH
V
CC
R
GEN
CB_
OR NO_
MAX4910
MAX4911
MAX4912
Figure 4. Charge Injection