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APA4863 Datasheet

  • APA4863

  • Stereo 2.2W Audio Power Amplifier

  • 163.77KB

  • 17頁

  • ANPEC

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APA4863
Stereo 2.2W Audio Power Amplifier
Features
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Depop Circuitry Integrated
Thermal Shutdown Circuitry Integrated
Bridge-Tied Load (BTL) or Single-Ended
(SE) Modes Operation
Output Power at 1% THD+N, V
DD
=5V
- 2.2W/Ch (typ) into a 3
鈩?/div>
Load
- 1.8W/Ch (typ) into a 4
鈩?/div>
Load
- 1.2 W/Ch (typ) into a 8
鈩?/div>
Load
General Description
The APA4863 is a stereo bridge-tied audio power am-
plifier in various power packages , including SOP ,
TSSOP and TSSOP-P . When connecting to a 5V volt-
age supply , the APA4863 is capable of delivering
2.2W/1.8W/1.2W of continuous RMS power per chan-
nel into 3鈩?4鈩?8鈩?bridge-tied loads with less than
1% THD+N respectively . When APA4863 operates
in the single-ended load , it is capable of delivering
90mW of continuous RMS power per channel into
32鈩?load . The APA4863 simplifies design and frees
up board space for other features .
The APA4863 also served well in low-voltage appli-
cations , which provides 750mW (1% THD+N) per
channel into 4鈩?loads with a 3.3V supply voltage .
Both of the depop circuitry and the thermal shutdown
protection circuitry are integrated in the APA4863 ,
that reduces pops and clicks noise during power up
and when using the shutdown mode and protects the
chip from being destroyed by over-temperature fail-
ure . To simplify the audio system design in note-
book computer applications , the APA4863 combines
a stereo bridge-tied loads mode for speaker drive and
a stereo single-end mode for headphone drive into a
single chip , where both modes are easily switched
by the HP-IN input control pin signal . For power sen-
sitive applications , the APA4863 also features a shut-
down function which keeps the supply current only
0.5 碌A(chǔ) (typ.) .
鈥?/div>
鈥?/div>
鈥?/div>
Shutdown Control Mode, I
SD
= 0.5 碌A(chǔ)
Output Power (SE) at 0.5% THD+N, V
DD
=5V
- 90mW/Ch (typ.) into a 32鈩?Load
Various Power Packages Available
SOP, TSSOP, TSSOP-P
Applications
鈥?/div>
鈥?/div>
鈥?/div>
Stereo Audio Power Amplifier for Notebook
Computer
Portable Televisions
Portable and Desktop Computers
Ordering Information
APA4863
Handling Code
Temp. Range
Package Code
Package Code
K: SOP
O: TSSOP
Temp. Range
I : -40 to 85
擄
C
Handling Code
TU : Tube
TR : Tape & Reel
R: TSSOP-P*
TY: Tray
* TSSOP-P is a standard TSSOP package with a thermal pad exposed on the bottom of the package.
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise
customers to obtain the latest version of relevant information to verify before placing orders.
Copyright
錚?/div>
ANPEC Electronics Corp.
Rev. A.3 - Apr., 2001
1
www.anpec.com.tw

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