MAX4994 Просмотр технического описания (PDF) - Maxim Integrated
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MAX4994 Datasheet PDF : 10 Pages
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Low RON, Dual-SPDT/Single-DPDT Analog
Switches with Slow Turn-On Time
Typical Operating Characteristics (continued)
(VCC = +3.0V, TA = +25°C, unless otherwise noted.)
20
0
-20
-40
-60
-80
-100
-120
-140
-160
10
FREQUENCY RESPONSE
ON-RESPONSE
OFF-RESPONSE
CROSSTALK
TOTAL HARMONIC DISTORTION + NOISE
vs. FREQUENCY
1
RL = 50Ω
0.1
0.01
100
1000 10,000
FREQUENCY (Hz)
100,000
0.001
10
100
1000
FREQUENCY (Hz)
100,000
SLOW TURN-ON RESPONSE
MAX4991 toc12
VCC = +2.8V
CCL = 100μF
RL = 16Ω
VIN
2V/div
VCOM
1V/div
20ms/div
ICOM
10mA/div
PIN
MAX4991/MAX4992 MAX4993/MAX4994
1
1
2
2
3
3
4
—
—
4
5
5
6
6
7
7
8
—
—
8
9
9
10
10
NAME
VCC
NO1
COM1
CB1
CB
NC1
GND
NC2
CB2
EN
COM2
NO2
Pin Description
FUNCTION
Positive-Supply Voltage Input. Bypass VCC to GND with a 0.1µF capacitor
as close as possible to the device.
Analog Switch 1—Normally Open Terminal
Analog Switch 1—Common Terminal. COM1 must be connected to the
speaker load for click-and-pop reduction.
Digital Control Input for Switch 1
Digital Control Input for Switch 1 and Switch 2
Analog Switch 1—Normally Closed Terminal
Ground
Analog Switch 2—Normally Closed Terminal
Digital Control Input for Switch 2
Active-Low Enable Input—Drive EN high to put switches in high
impedance. Drive EN low for normal operation.
Analog Switch 2—Common Terminal. COM2 must be connected to the
speaker load for click-and-pop reduction.
Analog Switch 2—Normally Open Terminal
6 _______________________________________________________________________________________
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