apa2020 Anpec Electronics Corporation, apa2020 Datasheet
apa2020
Manufacturer Part Number
apa2020
Description
Stereo 2-w Audio Power Amplifier
Manufacturer
Anpec Electronics Corporation
Datasheet
1.APA2020.pdf
(25 pages)
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APA2020
Features
Applications
Pin Configuration
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
Rev. A.9 - Sep., 2008
SHUTDOWN
MUTE OUT
LBYPASS
MUTE IN
GND/HS
GND/HS
LLINEIN
Shutdown Control Mode , I
Thermal Shutdown Circuitry Integrated
Output Power at 1% THD+N, V
Lead Free and Green Devices Available
Stereo Audio Power Amplifier for Notebook
Depop Circuitry Integrated
Various 24-Pin Power Packages Available
Bridge-Tied Load (BTL) or Single-Ended
SOP, TSSOP-P
(RoHS Compliant)
Computer
- 1.8 W/Ch (typ) into a 4
- 1.2 W/Ch (typ) into a 8
LOUT+
(SE) Modes Operation
LOUT-
LHPIN
LVDD
TJ
ANPEC Electronics Corp.
For SOP and TSSOP-P
10
11
12
1
2
3
4
5
6
7
8
9
Top View
DD
Load
Load
= 0.5µA
DD
24
23
22
21
20
19
18
17
16
15
14
13
=5V
GND/HS
NC
ROUT+
RLINEIN
RHPIN
RBYPASS
RVDD
NC
HP/LINE
ROUT-
SE/BTL
GND/HS
1
General Description
The APA2020 is a stereo bridge-tied audio power ampli-
fier in various 24-pin power packages, including SOP
and TSSOP-P. When connecting to a 5V voltage supply,
the APA2020 is capable of delivering 1.8W/1.2W of con-
tinuous RMS power per channel into 4 /8
less than 1% THD+N, respectively. The APA2020 simpli-
fies design and frees up board space for other features.
The APA2020 also served well in low-voltage applications
, which provides 800-mW per channel into 4
a 3.3V supply voltage. Both of the depop circuitry and the
thermal shutdown protection circuitry are integrated in
the APA2020, 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 APA2020 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 APA2020 also features a shutdown function which
keeps the supply current only 0.5 µA (typ).
Stereo 2-W Audio Power Amplifier
For TSSOP-P Only
Bottom View
Thermal
Pad
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