Electrical characteristics (continued) – Rainbow Electronics MAX9671 User Manual
Page 5
MAX9670/MAX9671
Low-Power Audio/Video Switch with Audio
Volume Control for Dual SCART Connectors
_______________________________________________________________________________________
5
ELECTRICAL CHARACTERISTICS (continued)
(V
12
= 12V, V
VID
= V
AUD
= 3.3V, V
GNDVID
= V
EP
= 0V, no load, T
A
= 0°C to +70°C, unless otherwise noted. Typical values are at
T
A
= +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Input Resistance
V
IN
= -0.707V to +0.707V
10
M
Ω
Input Bias Current
V
IN
= 0, T
A
= +25°C
500
nA
Input Signal Amplitude
f = 1kHz, THD < 1%
0.5
V
RMS
Output DC Level
No input signal, V
IN
grounded
-4
+4
mV
DC
75
100
Power-Supply Rejection Ratio
f = 1kHz
90
dB
Signal-to-Noise Ratio
f = 1kHz, 0.25V
RMS
input, 20Hz to 20kHz
96
dB
R
L
= 3.33k
Ω, f = 1kHz, 0.25V
RMS
input
0.002
Total Harmonic Distortion Plus
Noise
R
L
= 3.33k
Ω, f = 1kHz, 0.5V
RMS
input
0.001
%
Output Impedance
f = 1kHz
0.4
Ω
Volume Control Attenuation Step
Programmable gain to TV SCART volume
control from -62dB to 0
2
dB
Volume Control Minimum
Attenuation
0
dB
Volume Control Maximum
Attenuation
62
dB
Mute Suppression
f = 1kHz, 0.25V
RMS
input
110
dB
Audio Crosstalk
f = 1kHz, 0.25V
RMS
input
100
dB
VIDEO-TO-AUDIO INTERACTION
Crosstalk
Video input: f = 15kHz, 1V
P-P
signal
Audio input: f = 15kHz, 0.5V
RMS
signal
92
dB
CHARGE PUMP
Switching Frequency
570
kHz
FAST SWITCHING
Input Low
0.4
V
Input High Level
1
V
Input Current
T
A
= +25°C
10
µA
Output Low Voltage
I
OL
= 0.5mA
0.1
V
Output High Voltage
I
OH
= 0.5mA
V
VID
-
0.1
V
Output Resistance
7
Ω
Rise Time
143
Ω to GNDVID
12
ns
Fall Time
143
Ω to GNDVID
10
ns
SLOW SWITCHING
Input Low Voltage
2
V
Input Medium Voltage
4.5
7
V
Input High Voltage
9.5
V