Datasheet
MAX4908/MAX4909/MAX4930/MAX4932
Dual 3:1 Clickless Audio Multiplexers
with Negative-Signal Handling
_______________________________________________________________________________________ 3
Note 1: All parameters are production tested at T
A
= +25°C and guaranteed by design over the specified temperature range.
Note 2: Signals on X, Y, X_, or Y_ exceeding V
CC
are clamped by internal diodes. Limit forward-diode current to maximum current rating.
Note 3: Guaranteed by design; not production tested.
Note 4: ΔR
ON
= R
ON(MAX)
– R
ON(MIN)
.
Note 5: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified
analog signal ranges.
Note 6: X Off-Isolation = 20log
10
[V
X
/ V
X
_], V
X
= output, V
X
_ = input to off switch. Y Off-Isolation = 20log
10
[V
Y
/ V
Y
_], V
Y
= output,
V
Y
_ = input to off switch.
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +2.7V to +5.5V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V
CC
= +3.0V, T
A
= +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
DYNAMIC CHARACTERISTICS
Turn-On Time t
ON
V
CC
= +2.7V, CB_ = low to high, R
L
= 50Ω,
C
L
= 5pF, Figure 2
1.0 µs
Turn-Off Time t
OFF
V
CC
= +2.7V, CB_ = high to low, R
L
= 50Ω,
C
L
= 5pF, Figure 2
1.0 µs
Break-Before-Make Delay
Time
t
D
V
CC
= +2.7V, CB_ = low to high or high to low,
R
L
= 50Ω, C
L
= 5pF, Figure 3
1.0 15 ns
Charge Injection Q V
X
= V
Y
= 0V, R
GEN
= 0Ω, C
L
= 1nF, Figure 4 300 pC
Power-Supply Rejection Ratio
PSRR
f = 20kHz, V
X
or V
Y
= 1V
RMS
, R
L
= 50Ω,
C
L
= 5pF
60 dB
Off-Isolation V
ISO
f = 20kHz, V
X
= V
Y
= 1V
RMS,
R
L
= 50Ω,
Figure 5 (Note 6)
-80 dB
Crosstalk V
CT
f = 20kHz, V
X
or V
Y
= 1V
RMS,
R
L
= 50Ω,
Figure 5
-70 dB
Total Harmonic Distortion THD
f = 20H z to 20kH z, V
X
or V
Y
= 0.5V
P - P
, R
L
= 50Ω ,
D C b i as = 0
0.02
%
X_, Y_
Off-Capacitance
C
X
_
(
OFF
)
C
Y_
(
OFF
)
f = 1MHz, V
X
or V
Y
= 0.5V
P-P,
DC bias = 0,
Figure 6
200 pF
X, Y On-Capacitance
C
X(ON)
C
Y
(
ON
)
f = 1MHz, V
X
or V
Y
= 0.5V
P-P,
DC bias = 0,
Figure 6
450 pF
DIGITAL INPUTS (CB_)
Input Logic High V
IH
1.4 V
Input Logic Low V
IL
0.5 V
Input Leakage Current I
CB
V
CB
_ = 0V or V
CC
-1 +1 µA