TPA6203A1 Datasheet, PDF (1/19 Pages) Texas Instruments – 1.25-W MONO FULLY DIFFERENTIAL AUDIO POWER AMPLIFIER

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TPA6203A1
SLOS364C – MARCH 2002 – REVISED SEPTEMBER 2003
1.25-W MONO FULLY DIFFERENTIAL AUDIO POWER AMPLIFIER
FEATURES
• 1.25 W Into 8 Ω From a 5-V Supply at
THD = 1% (Typ)
• Low Supply Current: 1.7 mA typ
• Shutdown Control <1 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
– ZQV (Pb - free) and GQV Options
• Avaliable in a 2 mm x 2 mm MicroStar
Junior™ BGA Package
– ZQV (Pb - free) and GQV Options
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 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.
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.
Actual Solution Size
R_F
V_{DD A3}
In From
DAC
- ^RI
+ ^RI
C3 IN- _{_}
C2 IN+ ₊
C_s
V_{O+ B3}
V_{O- A1}
SHUTDOWN
R_F
B1
C1
GND B2
Bias
Circuitry
(1)_C(BYPASS)
To Battery
(1)_CB
R_I
R_I
(1) _{C(BYPASS) is optional}
R_F
C_S
5,25 mm
R_F
6,9 mm
MicroStar Junior is a trademark of Texas Instruments.
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 in-
clude testing of all parameters.
Copyright © 2002 – 2003, Texas Instruments Incorporated