APA2030/2031
Stereo 2.6W Audio Amplifier (With Gain Control)
Features
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Low Operating Current with 6mA
Improved Depop Circuitry to Eliminate Turn-On
Transients in Outputs
High PSRR
Internal Gain Control, Eliminate External
Components
2.6W Per Channel Output Power into 3Ω Load at
5V, BTL Mode
Multiple Input Modes Allowable Selected by
HP/LINE Pin (APA2030)
Two Output Modes Allowable with BTL and SE
Modes Selected by SE/BTL Pin (for APA2030 only)
Low Current Consumption in Shutdown Mode
(50µA)
Short Circuit Protection
TSSOP-24P (APA2030), TSSOP-20P, and TQFN3x3-
16 (APA2031) with Thermal Pad Packages.
Lead Free and Green Devices Available
(RoHS Compliant)
General Description
APA2030/1 is a monolithic integrated circuit, which pro-
vides internal gain control, and a stereo bridged audio
power amplifiers capable of producing 2.6W (1.9W) into
3Ω with less than 10% (1.0%) THD+N. By controlling the
two gain setting pins, Gain0 and Gain1, the amplifier can
provide 6dB, 10dB, 15.6dB, and 21.6dB gain settings.
The advantage of internal gain setting can be less com-
ponents and PCB area. Both of the depop circuitry and
the thermal shutdown protection circuitry are integrated
in APA2030/1, that reduces pops and clicks noise during
power up or shutdown mode operation. It also improves
the power off pop noise and protects the chip from being
destroyed by over temperature and short current failure.
To simplify the audio system design, APA2030 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. In addition, the
multiple input selections are used for portable audio
system. The APA2031 eliminates both input selection and
single-end (SE) mode function to simplify the design and
save the PCB space.
Applications
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Notebook PCs
LCD Monitor
Pin Configuration
APA2030
GND 1
GAIN0 2
GAIN1 3
LOUT+ 4
LLINEIN 5
LHPIN 6
PVDD 7
RIN+ 8
LOUT- 9
LIN+ 10
BYPASS 11
GND 12
24
23
22
21
GND
RLINEIN
SHUTDOWN
ROUT+
TSSOP-24P
(Top View)
20 RHPIN
19 VDD
18 PVDD
17 HP/LINE
16 ROUT-
15 SE/BTL
14 PCBEEP
13 GND
= ThermalPad (connected the ThermalPad to GND plane
for better heat dissipation)
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
©
ANPEC Electronics Corp.
Rev. A.10 - Aug., 2013
1
www.anpec.com.tw
ANPEC [ ANPEC ELECTRONICS COROPRATION ]
