MAX4409 Maxim Integrated Products, MAX4409 Datasheet - Page 8

• Manufacturer Part Number: MAX4409
• Description: Stereo Headphone Amplifier
• Manufacturer: Maxim Integrated Products

80mW, DirectDrive, Stereo Headphone
Amplifier with Common-Mode Sense
(
8
C1 = C2 = 2.2µF, R
10
_______________________________________________________________________________________
TSSOP
8
6
4
2
0
0
10
11
12
13
14
—
—
1
2
3
4
5
6
7
8
9
0.9
PIN
vs. SUPPLY VOLTAGE
SUPPLY CURRENT
SUPPLY VOLTAGE (V)
THIN QFN
4, 6, 8, 12,
IN
16, 20
= R
1.8
18
19
10
13
11
14
15
17
—
1
2
3
5
7
9
F
= R1 = R2 = 10kΩ, THD+N measurement bandwidth = 22Hz to 22kHz, T
2.7
NAME
PGND
SGND
OUTR
SHDN
PV DD
OUTL
SV DD
COM
PV SS
SV SS
C1N
N.C.
C1P
INR
INL
EP
3.6
Exposed Paddle. Leave this connection floating. Do not connect to V
Common-Mode Voltage Sense Input
Charge-Pump Power Supply. Powers charge-pump inverter, charge-pump logic, and
oscillator.
Flying Capacitor Positive Terminal
Power Ground. Connect to SGND.
Flying Capacitor Negative Terminal
Charge-Pump Output
Amplifier Negative Power Supply. Connect to PV SS .
Left-Channel Output
Amplifier Positive Power Supply. Connect to PV DD .
Left-Channel Audio Input
Right-Channel Output
Active-Low Shutdown. Connect to V DD for normal operation.
Right-Channel Audio Input
Signal Ground. Connect to PGND.
No Connection. Not internally connected.
10
Typical Operating Characteristics (continued)
8
6
4
2
0
0
SHDN = GND
SHUTDOWN SUPPLY CURRENT
0.9
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
1.8
2.7
FUNCTION
3.6
OUT_FFT
OUT_
V
DD
A
= +25°C, unless otherwise noted.
R
V
L
IN_
-100dB
= 32Ω
POWER-UP/DOWN WAVEFORM
= GND
Pin Description
FFT: 25Hz/div
200ms/div
DD
www.DataSheet4U.com
or GND.
MAX4409 toc42
)
3V
0V
10mV/div
20dB/div