TPA6211A1_15 Datasheet, PDF (1/32 Pages) Texas Instruments – 3.1-W MONO FULLY DIFFERENTIAL AUDIO POWER AMPLIFIER

TPA6211A1
www.ti.com
SLOS367D – AUGUST 2003 – REVISED JUNE 2011
3.1-W MONO FULLY DIFFERENTIAL AUDIO POWER AMPLIFIER
Check for Samples: TPA6211A1
FEATURES
1
•2 Designed for Wireless or Cellular Handsets
and PDAs
• 3.1 W Into 3Ω From a 5-V Supply at
THD = 10% (Typ)
• Low Supply Current: 4 mA Typ at 5 V
• Shutdown Current: 0.01 μA Typ
• Fast Startup With Minimal Pop
• Only Three External Components
– Improved PSRR (-80 dB) and Wide Supply
Voltage (2.5 V to 5.5 V) for Direct Battery
Operation
– Fully Differential Design Reduces RF
Rectification
– -63 dB CMRR Eliminates Two Input
Coupling Capacitors
APPLICATIONS
• 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-Ω impedance while consuming only 20 mm² 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 × 3-mm QFN (DRB) and the 8-pin MSOP
(DGN) PowerPAD™ 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.
APPLICATION CIRCUIT
In From
DAC
40 kΩ
- ^RI 4 IN- _{_}
+ ^RI 3 _{IN+ +}
40 kΩ
V_{DD 6}
To Battery
C_s
V_O+ 5
V_{O- 8}
GND 7
SHUTDOWN
1
C_(BYPASS)(1)
2
Bias
Circuitry
100 kΩ
8-PIN QFN (DRB) PACKAGE
(TOP VIEW)
SHUTDOWN ¹
BYPASS 2
IN+ 3
IN- 4
8 _VO-
7 GND
6 V_DD
5 VO+
DGN PACKAGE
(TOP VIEW)
SHUTDOWN
1
8
V_O-
BYPASS
2
7
GND
IN+
3
6
V_DD
IN-
4
5
V_O+
(1) _{C(BYPASS) is optional.}
1
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.
2
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 © 2003–2011, Texas Instruments Incorporated