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APA2020AKI-TY Datasheet

  • APA2020AKI-TY

  • Stereo 2-W Audio Power Amplifier

  • 25頁(yè)

  • ANPEC

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APA2020A
Stereo 2-W Audio Power Amplifier
Features
鈥?/div>
鈥?/div>
鈥?/div>
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Low Supply Current , I
DD
= 8mA at Stereo BTL
Low Shutdown Current , I
DD
= 0.5碌A(chǔ)
Depop Circuitry Integrated
Low Supply Voltage
Thermal Shutdown Circuitry Integrated
Output Power at 1% THD+N , V
DD
=5V
- 1.8 W/Ch (typ) into a 4
鈩?/div>
Load
- 1.2 W/Ch (typ) into a 8
鈩?/div>
Load
Bridge-Tied Load (BTL) or Single-Ended
(SE) Modes Operation
Various 24-Pin Power Packages Available
SOP , TSSOP-P
High Supply Voltage Ripple Rejection
General Description
The APA2020A is a stereo bridge-tied audio power
amplifier in various 24-pin power packages , includ-
ing SOP , TSSOP-P. When connecting to a 5V volt-
age supply , the APA2020A is capable of delivering
1.8W/1.2W of continuous RMS power per channel
into 4鈩?8鈩?loads with less than 1% THD+N ,
respectively. The APA2020A simplifies design and
frees up board space for other features .
The APA2020A also served well in low-voltage
applications , which provides 800-mW 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 APA2020A , that reduces
pops and clicks noise during power up and when
using the shutdown or mute modes and protects the
chip from being destroyed by over-temperature
failure.
To simplify the audio system design in notebook
computer applications , the APA2020A combines a
stereo bridge-tied loads (BTL) mode for speaker drive
and a stereo single-end (SE) mode for headphone
drive into a single chip , where both modes are easily
switched by the SE/BTL input control pin signal . For
power sensitive applications , the APA2020A also
features a shutdown function which keeps the supply
current only 0.5 碌A(chǔ) (typ) .
Applications
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Stereo Audio Power Amplifier for Notebook
Computer
Ordering Information
APA2020A
Handling Code
Temp. Range
Package Code
Package Code
K : SOP
Temp. Range
I: - 40 to 85
擄
C
Handling Code
TU : Tube
TY : Tray
TR : Tape & Reel
R : TSSOP-P *
* TSSOP-P is a standard TSSOP package with a thermal pad exposure 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.5 - July., 2002
1
www.anpec.com.tw

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