MAX4409ETP+T Maxim Integrated Products, MAX4409ETP+T Datasheet - Page 8

• Manufacturer Part Number: MAX4409ETP+T
• Description: IC AMP AUDIO .08W STER AB 20TQFN
• Manufacturer: Maxim Integrated Products
• Series: DirectDrive™r
• Type: Class ABr

Specifications of MAX4409ETP+T

• Output Type: Headphones, 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 80mW x 2 @ 16 Ohm
• Voltage - Supply: 1.8 V ~ 3.6 V
• Features: Depop, Short-Circuit and Thermal Protection, Shutdown
• Mounting Type: Surface Mount
• Package / Case: 20-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

80mW, DirectDrive, Stereo Headphone
Amplifier with Common-Mode Sense
(
8
C1 = C2 = 2.2µF, R
4, 6, 8, 12,
10
_______________________________________________________________________________________
8
6
4
2
0
16, 20
PIN
18
19
10
13
11
14
15
17
—
0
1
2
3
5
7
9
0.9
vs. SUPPLY VOLTAGE
SUPPLY CURRENT
SUPPLY VOLTAGE (V)
IN
NAME
PGND
SGND
PV DD
SV DD
OUTR
SHDN
OUTL
COM
PV SS
SV SS
C1P
C1N
N.C.
INR
INL
EP
= R
1.8
F
= R1 = R2 = 10kΩ, THD+N measurement bandwidth = 22Hz to 22kHz, T
2.7
Exposed Pad. Leave unconnected. 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.
3.6
10
Typical Operating Characteristics (continued)
8
6
4
2
0
0
SHDN = GND
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
0.9
SUPPLY VOLTAGE (V)
1.8
2.7
FUNCTION
3.6
DD
OUT_FFT
or GND.
OUT_
V
DD
A
= +25°C, unless otherwise noted.
-100dB
POWER-UP/DOWN WAVEFORM
Pin Description
R
L
= 32Ω, V
FFT: 25Hz/div
200ms/div
IN_
= GND
MAX4409 toc42
)
3V
0V
10mV/div
20dB/div