參數(shù)資料
型號(hào): TPA3002D2PHPRG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 音頻控制
英文描述: 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PQFP48
封裝: GREEN, PLASTIC, HTQFP-48
文件頁數(shù): 1/40頁
文件大小: 735K
代理商: TPA3002D2PHPRG4
TPA3002D2
SLOS402C DECEMBER 2002 REVISED JANUARY 2004
9W STEREO CLASSD AUDIO POWER AMPLIFIER
WITH DC VOLUME CONTROL
FEATURES
D 9-W/Ch Into an 8- Load From 12-V Supply
D Efficient, Class-D Operation Eliminates
Heatsinks and Reduces Power Supply
Requirements
D 32-Step DC Volume Control From 40 dB to
36 dB
D Line Outputs For External Headphone
Amplifier With Volume Control
D Regulated 5-V Supply Output for Powering
TPA6110A2
D Space-Saving, Thermally-Enhanced
PowerPAD
Packaging
D Thermal and Short-Circuit Protection
APPLICATIONS
D LCD Monitors and TVs
D Powered Speakers
DESCRIPTION
The TPA3002D2 is a 9-W (per channel) efficient, Class-D
audio amplifier for driving bridged-tied stereo speakers.
The TPA3002D2 can drive stereo speakers as low as 8
.
The high efficiency of the TPA3002D2 eliminates the need
for external heatsinks when playing music.
Stereo speaker volume is controlled with a dc voltage
applied to the volume control terminal offering a range of
gain from –40 dB to 36 dB. Line outputs, for driving external
headphone amplifier inputs, are also dc voltage controlled
with a range of gain from –56 dB to 20 dB.
An integrated 5-V regulated supply is provided for
powering an external headphone amplifier.
Cs
10 nF
Cbs
Cs
10 nF
Cbs
PVCC
Cs
10 nF
Cbs
Cs
10 nF
Cbs
PVCC
220 pF
Cosc
Rosc
Ccpl
100 nF
Cvdd
Ccpr
Crinp
Crinn
Clinn
Clinp
LINP
LINN
RINN
RINP
SDZ
VREF
VOL
REFGND
VARDIFF
VARMAX
BSLP
PVCCL
LOUTP
PGNDL
LOUTN
PVCCL
BSLN
TPA3002D2
VCLAMPR
SD
V2P5
RINP
LINN
LINP
AVDDREF
VREF
VARDIFF
VARMAX
VOLUME
REFGND
MODE
MODE_OUT
VAROUTR
VAROUTL
AVDD
AGND
COSC
ROSC
AVCC
VCLAMPL
BSRP
PVCCR
ROUTP
PGNDR
ROUTN
PVCCR
BSRN
RINN
AVDD
AVCC
C2p5
AGND
10
F
10
F
0.1
F
0.1
F
1
F
1
F
1
F
1
F
1
F
0.1
F
0.1
F
10
F
10
F
1
F
120 k
1
F
10
k
10
k
Cs
0.1
F
Cvcc
10
F
MODE_OUT
MODE
RLINE_OUT
LLINE_OUT
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.
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.
www.ti.com
Copyright
20022004, Texas Instruments Incorporated
PowerPAD is a trademark of Texas Instruments.
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