MAX9722AETE 查看數據表（PDF） - Unspecified
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产品描述 (功能)
生产厂家
MAX9722AETE
Unspecified
MAX9722AETE Datasheet PDF : 20 Pages
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5V, Differential Input, DirectDrive, 130mW
Stereo Headphone Amplifiers with Shutdown
Typical Operating Characteristics (continued)
(MAX9722A, PVDD = SVDD = +5V, PGND = SGND = 0V, SHDN = SVDD, C1 = C2 = 1µF, RL = ∞, gain = -1V/V, single-ended input,
THD+N measurement bandwidth = 22Hz to 22kHz, TA = +25°C, unless otherwise noted.)
EXIT SHUTDOWN TRANSIENT
MAX9722 toc31
SHUTDOWN TRANSIENT
MAX9722 toc32
POWER-UP/DOWN TRANSIENT
MAX9722 toc33
SHDN
2V/div
SHDN
2V/div
VDD
2V/div
200µs/div
OUT
500mV/div
400µs/div
OUT
500mV/div
20ms/div
OUT
5mV/div
PIN
THIN QFN TSSOP
1
3
2
3
4
5
6
7
8
9, 13
10
11
12
14
15
16
—
4
5
6
7
8
9
10
11, 15
12
13
14
16
1
2
—
Pin Description
NAME
FUNCTION
PVDD
C1P
PGND
C1N
PVSS
SGND
INR+
INR-
SVDD
OUTR
SVSS
OUTL
INL-
INL+
SHDN
EP
Charge-Pump Power Supply. Powers charge-pump inverter, charge-pump logic, and oscillator.
Connect to positive supply (2.4V to 5.5V). Bypass with a 1µF capacitor to PGND as close to the
pin as possible.
Flying Capacitor Positive Terminal
Power Ground. Connect to ground.
Flying Capacitor Negative Terminal
Charge-Pump Output. Connect to SVSS.
Signal Ground. Connect to ground.
Noninverting Right-Channel Audio Input
Inverting Right-Channel Audio Input
Amplifier Positive Power Supply. Connect to positive supply (2.4V to 5.5V). Bypass with a 1µF
capacitor to SGND as close to the pin as possible.
Right-Channel Output
Amplifier Negative Power Supply. Connect to PVSS.
Left-Channel Output
Inverting Left-Channel Audio Input
Noninverting Left-Channel Audio Input
Active-Low Shutdown Input
Exposed Paddle. Leave this connection unconnected or solder to a piece of electrically
isolated copper. Do not connect to any voltage potential.
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