TPA2032D1 Datasheet, PDF (1/17 Pages) Texas Instruments – 2.75-W FIXED GAIN MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER

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TPA2032D1
TPA2033D1
TPA2034D1
SLOS476 – JUNE 2006
2.75-W FIXED GAIN MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER
FEATURES
• Maximize Battery Life and Minimize Heat
– 0.5-µA Shutdown Current
– 3.0-mA Quiescent Current
– High Efficiency Class-D
• 88% at 400mW at 8Ω
• 80% at 100mW at 8Ω
• Three Fixed Gain Versions
– TPA2032D1 has a gain of 2 V/V (6dB)
– TPA2033D1 has a gain of 3 V/V (9.5dB)
– TPA2034D1 has a gain of 4 V/V (12dB)
• Only One External Component Required
– Internal Matched Input Gain and Feedback
Resistors for Excellent PSRR and CMRR
– Optimized PWM Output Stage Eliminates
LC Output Filter
– PSRR (–75 dB) and Wide Supply Voltage
(2.5 V to 5.5 V) Eliminates Need for a
Dedicated Voltage Regulator
– Fully Differential Design Reduces RF
Rectification and Eliminates Bypass
Capacitor
– CMRR (–69 dB)Eliminates Two Input
Coupling Capacitors
• Thermal and Short-Circuit Protection
• Pinout Very Similar to TPA2010D1
• Wafer Chip Scale Packaging (WCSP)
– NanoFree™ Lead-Free (Pb-Free: YZF)
APPLICATIONS
• Ideal for Wireless Handsets, PDAs, and other
mobile devices
DESCRIPTION
The TPA2032D1 (2V/V gain), TPA2033D1 (3V/V
gain), and TPA2034D1 (4V/V gain) are 2.75-W high
efficiency filter-free class-D audio power amplifiers,
each in an approximately 1.5-mm × 1.5-mm wafer
chip scale package (WCSP) that requires only one
external component. The pinout is the same as the
TPA2010D1 except that the external gain setting
input resistors required by the TPA2010D1 are
integrated into the fixed gain TPA203xD1 family.
Features like –75dB PSRR and improved
RF-rectification immunity with a very small PCB
footprint (WCSP amplifier plus single decoupling
cap) make the TPA203xD1 family ideal for wireless
handsets. A fast start-up time of 3.2 ms with minimal
pop makes the TPA203xD1 family ideal for PDA
applications.
In wireless handsets, the earpiece, speaker phone,
and melody ringer can each be driven by a
TPA203xD1. The TPA203xD1 family has a low
27-µV noise floor, A-weighted.
APPLICATION CIRCUIT
C
S
IN−
Differential
Input
IN+
SHUTDOWN
Internal
Oscillator
To Battery
V_DD
C_S
_
PWM
H−
V_O−
Bridge
+
V_O+
Bias
Circuitry
GND
TPA2032D1
TPA
203xD1
~ 2,5 mm
9-BALL WAFER CHIP SCALE, YZF PACKAGE,
(TOP VIEW OF PCB)
IN+ GND
A1 A2
V_O−
A3
1,4 mm
1,55 mm
V_DD PV_DD PGND
B1 B2
B3
IN− SHUTDWN VO+
C1 C2
C3
1,4 mm
1,55 mm
Note: Pin A1 is marked with a “0” .
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.
NanoFree 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 © 2006, Texas Instruments Incorporated