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TPA6011A4PWP Datasheet

  • TPA6011A4PWP

  • 3-W STEREO AUDIO POWER AMPLIFIER WITH ADVANCED DC VOLUME CON...

  • 31頁

  • TI

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TPA6011A4
SLOS392A 鈥?FEBRUARY 2002 鈥?REVISED JULY 2004
3-W STEREO AUDIO POWER AMPLIFIER
WITH ADVANCED DC VOLUME CONTROL
FEATURES
鈥?/div>
Advanced DC Volume Control With 2-dB
Steps
From -40 dB to 20 dB
鈥?Fade Mode
鈥?Maximum Volume Setting for SE Mode
鈥?Adjustable SE Volume Control
Referenced to BTL Volume Control
3 W Into 3-鈩?Speakers
Stereo Input MUX
Differential Inputs
DESCRIPTION
The TPA6011A4 is a stereo audio power amplifier
that drives 3 W/channel of continuous RMS power
into a 3-鈩?load. Advanced dc volume control
minimizes external components and allows BTL
(speaker) volume control and SE (headphone) vol-
ume control. Notebook and pocket PCs benefit from
the integrated feature set that minimizes external
components without sacrificing functionality.
To simplify design, the speaker volume level is
adjusted by applying a dc voltage to the VOLUME
terminal. Likewise, the delta between speaker volume
and headphone volume can be adjusted by applying
a dc voltage to the SEDIFF terminal. To avoid an
unexpected high volume level through the
headphones, a third terminal, SEMAX, limits the
headphone volume level when a dc voltage is ap-
plied. Finally, to ensure a smooth transition between
active and shutdown modes, a fade mode ramps the
volume up and down.
Right
Speaker
ROUT+
1
PGND
SE/BTL
C
S
2
3
ROUT-
HP/LINE
PV
DD
RHPIN
RLINEIN
RIN
21
VOLUME
20
19
In From DAC
or
Potentiometer
(DC Voltage)
24
23
V
DD
100 k鈩?/div>
C
C
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
APPLICATIONS
Notebook PC
LCD Monitors
Pocket PC
APPLICATION CIRCUIT
DC VOLUME CONTROL
30
20
10
1 k鈩?/div>
22
100 k鈩?/div>
Power Supply
C
i
Right HP
Audio Source
Right Line
Audio Source
0
-10
Volume - dB
-20
-30
-40
-50
C
C
1 k鈩?/div>
BTL Volume
4
C
i
5
C
i
6
C
S
V
DD
7
C
i
8
SEDIFF
SEMAX
V
DD
LIN
AGND
BYPASS
18
C
(BYP)
17
Headphone
s
SE Volume,
SEDIFF [Pin 20] = 0 V
C
i
Left Line
Audio Source
Left HP
Audio Source
Power Supply
C
S
9
C
i
10
11
12
LLINEIN
FADE
16
-60
-70
SE Volume,
SEDIFF [Pin 20] = 1 V
LHPIN SHUTDOWN
PV
DD
LOUT-
LOUT+
PGND
15
14
13
System
Control
Left
Speaker
-80
-90
0
0.5
1
BTL Volume (dB)
鈭?/div>
Volume (V)
SE Volume (dB)
鈭?/div>
Volume (V) - SEDIFF
(V)
1.5
2
2.5
3
3.5
4
4.5
5
Volume [Pin 21] - V
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 the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright 漏 2002鈥?004, Texas Instruments Incorporated

TPA6011A4PWP 產(chǎn)品屬性

  • 60

  • 集成電路 (IC)

  • 線性 - 音頻放大器

  • -

  • AB 類

  • 2-通道（立體聲）帶立體聲耳機

  • 3W x 2 @ 3 歐姆

  • 4 V ~ 5.5 V

  • 消除爆音，差分輸入，輸入多路復(fù)用器，靜音，關(guān)機，熱保護(hù)，音量控制

  • 表面貼裝

  • 24-HTSSOP

  • 24-TSSOP（0.173"，4.40mm）裸露焊盤

  • 管件

  • 296-13568-ND - EVAL MOD FOR TPA6011A4

  • 296-16919-5

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