TPA6204A1_15 Datasheet, PDF (1/20 Pages) Texas Instruments – 1.7-W MONO FULLY DIFFERENTIAL AUDIO POWER AMPLIFIER

www.ti.com
TPA6204A1
SLOS429B − MAY 2004 − REVISED SEPTEMBER 2009
1.7-W MONO FULLY DIFFERENTIAL AUDIO POWER AMPLIFIER
FEATURES
D Designed for Wireless or Cellular Handsets
and PDAs
D 1.7 W Into 8 Ω From a 5-V Supply at
THD = 10% (Typ)
D Low Supply Current: 4 mA typ at 5 V
D Shutdown Current: 0.01 mA Typ
D Fast Startup With Minimal Pop
D 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
D Pin to Pin Compatible With TPA2005D1 and
TPA6211A1 in QFN Package
D Available in 3 mm X 3 mm QFN Package
(DRB)
APPLICATIONS
D Ideal for Wireless Handsets
D PDAs
D Notebook Computers
DESCRIPTION
The TPA6204A1 (sometimes referred to as TPA6204) is a
1.7-W mono fully-differential amplifier designed to drive a
speaker with at least 8-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
TPA6204A1 (TPA6204) is available in the space-saving
3 mm x 3 mm QFN (DRB) package.
The TPA6204A1 (TPA6204) is ideal for PDA/smart phone
applications due to features such as −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.
APPLICATION CIRCUIT
In From
DAC
40 kΩ
− ^RI 4 IN− _{_}
+ ^RI 3 _{IN+ +}
40 kΩ
V_{DD 6}
C_s
V_O+ 5
V_{O− 8}
To Battery
GND 7
2
SHUTDOWN
1
Bias
Circuitry
C_(BYPASS)(1)
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+
(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.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
Copyright  2004, Texas Instruments Incorporated