TPA6203A1_07 Datasheet, PDF (1/27 Pages) Texas Instruments – 1.25-W MONO FULLY DIFFERENTIAL AUDIO POWER AMPLIFIER

GQV, ZQV
DRB
DGN
TPA6203A1
www.ti.com
SLOS364E – MARCH 2002 – REVISED DECEMBER 2005
1.25-W MONO FULLY DIFFERENTIAL AUDIO POWER AMPLIFIER
FEATURES
• 1.25 W Into 8 Ω From a 5-V Supply at
THD = 1% (Typical)
• Low Supply Current: 1.7 mA Typical
• Shutdown Control < 10 µA
• Only Five External Components
– Improved PSRR (90 dB) and Wide Supply
Voltage (2.5 V to 5.5 V) for Direct Battery
Operation
– Fully Differential Design Reduces RF
Rectification
– Improved CMRR Eliminates Two Input
Coupling Capacitors
– C_(BYPASS) Is Optional Due to Fully Differential
Design and High PSRR
• Avaliable in a 2 mm x 2 mm MicroStar
Junior ™ BGA Package (GQV, ZQV)
• Available in 3 mm x 3 mm QFN Package
(DRB)
• Available in an 8-Pin PowerPAD™ MSOP
(DGN)
APPLICATION CIRCUIT
APPLICATIONS
• Designed for Wireless or Cellular Handsets
and PDAs
DESCRIPTION
The TPA6203A1 is a 1.25-W mono fully differential
amplifier designed to drive a speaker with at least
8-Ω impedance while consuming less than 37 mm²
(ZQV package option) total printed-circuit board
(PCB) area in most applications. This device operates
from 2.5 V to 5.5 V, drawing only 1.7 mA of quiescent
supply current. The TPA6203A1 is available in the
space-saving 2 mm x 2 mm MicroStar Junior™ BGA
package, and the space saving 3 mm x 3 mm QFN
(DRB) package.
Features like 85-dB PSRR from 90 Hz to 5 kHz,
improved RF-rectification immunity, and small PCB
area makes the TPA6203A1 ideal for wireless
handsets. A fast start-up time of 4 µs with minimal
pop makes the TPA6203A1 ideal for PDA
applications.
R_F
In From
DAC
- ^RI
+ ^RI
R_F
SHUTDOWN
C_(BYPASS)
(Optional)
V_DD
IN- _{_}
V_O+
IN+ ₊
V_O-
GND
Bias
Circuitry
To Battery
C_s
(1)_CB
R_I
R_I
Actual Solution Size
R_F
C_S
5,25 mm
R_F
6,9 mm
Applies to the GQV/ZQV Packages Only
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.
Junior, PowerPAD, MicroStar Junior are trademarks 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 © 2002–2005, Texas Instruments Incorporated