max9722beue Maxim Integrated Products, Inc., max9722beue Datasheet - Page 7

• Manufacturer Part Number: max9722beue
• Description: 5v, Differential Input, Directdrive, 130mw Stereo Headphone Amplifiers With Shutdown Products
• Manufacturer: Maxim Integrated Products, Inc.

(MAX9722A, PV
THD+N measurement bandwidth = 22Hz to 22kHz, T
THIN QFN
9, 13
10
11
12
14
15
16
—
EXIT SHUTDOWN TRANSIENT
1
2
3
4
5
6
7
8
Stereo Headphone Amplifiers with Shutdown
PIN
200µs/div
TSSOP
11, 15
DD
10
12
13
14
16
5V, Differential Input, DirectDrive, 130mW
—
3
4
5
6
7
8
9
1
2
= SV
_______________________________________________________________________________________
DD
NAME
PGND
SGND
OUTR
SHDN
OUTL
PV
SV
MAX9722 toc31
INR+
PV
SV
INL+
= +5V, PGND = SGND = 0V, SHDN = SV
C1P
C1N
INR-
INL-
EP
DD
DD
SS
SS
SHDN
2V/div
OUT
500mV/div
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 SV
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 PV
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.
Typical Operating Characteristics (continued)
SHUTDOWN TRANSIENT
A
= +25°C, unless otherwise noted.)
400µs/div
DD
MAX9722 toc32
, C1 = C2 = 1µF, R
SS
.
FUNCTION
SHDN
2V/div
OUT
500mV/div
SS
.
L
= ∞, gain = -1V/V, single-ended input,
POWER-UP/DOWN TRANSIENT
Pin Description
20ms/div
MAX9722 toc33
V
2V/div
OUT
5mV/div
DD
7