鈥?/div>
Designed for Wireless or Cellular Handsets
and PDAs
3.1 W Into 3鈩?From a 5-V Supply at
THD = 10% (Typ)
Low Supply Current: 4 mA Typ at 5 V
Shutdown Current: 0.01 碌A Typ
Fast Startup With Minimal Pop
Only Three External Components
鈥?Improved PSRR (-80 dB) and Wide Supply
Voltage (2.5 V to 5.5 V) for Direct Battery
Operation
鈥?Fully Differential Design Reduces RF
Rectification
鈥?-63 dB CMRR Eliminates Two Input
Coupling Capacitors
APPLICATIONS
鈥?/div>
Ideal for Wireless Handsets, PDAs, and
Notebook Computers
DESCRIPTION
The TPA6211A1 is a 3.1-W mono fully-differential
amplifier designed to drive a speaker with at least
3-鈩?impedance while consuming only 20 mm
2
total
printed-circuit board (PCB) area in most applications.
The device operates from 2.5 V to 5.5 V, drawing
only 4 mA of quiescent supply current. The
TPA6211A1 is available in the space-saving
3-mm
脳
3-mm QFN (DRB) and the 8-pin MSOP
(DGN) PowerPAD鈩?packages.
Features like -80 dB supply voltage rejection from
20 Hz to 2 kHz, improved RF rectification immunity,
small PCB area, and a fast startup with minimal pop
makes the TPA6211A1 ideal for PDA/smart phone
applications.
8-PIN QFN (DRB) PACKAGE
(TOP VIEW)
To Battery
C
s
SHUTDOWN
BYPASS
IN+
1
2
3
4
8
V
O-
7
GND
6
V
DD
5
V
O+
APPLICATION CIRCUIT
V
DD
40 k鈩?/div>
-
In From
DAC
R
I
4
3
IN-
IN+
40 k鈩?/div>
1
_
+
GND
7
V
O+
V
O-
5
8
6
IN-
+ R
I
DGN PACKAGE
(TOP VIEW)
SHUTDOWN
BYPASS
IN+
IN-
1
2
3
4
8
7
6
5
V
O-
GND
V
DD
V
O+
SHUTDOWN
Bias
Circuitry
100 k鈩?/div>
C
(BYPASS)(1)
2
(1)
C
(BYPASS)
is optional.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright 漏 2003鈥?004, Texas Instruments Incorporated
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