APA2068
Stereo 2.6W Audio Power Amplifier (with DC_Volume Control)
General Description
Features
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Low Operating Current with 9mA
APA2068 is a monolithic integrated circuit, which
provides precise DC volume control, and a stereo
bridged audio power amplifiers capable of producing
2.6W (1.8W)into4Wwithlessthan10%(1.0%)THD+N.
Theattenuatorrangeof the volumecontrol inAPA2068
is from 20dB (DC_Vol=0V) to -80dB (DC_Vol=3.54V)
with 32 steps. The advantage of internal gain setting
can be less components and PCB area. Both of the
depop circuitry and the thermal shutdown protection
circuitry are integrated in APA2068, that reduce 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, APA2068 combines a stereo
bridge-tied loads (BTL) mode for speaker drive and a
stereo single-end(SE) modefor headphonedrive into
a single chip, where both modes are easily switched
by the SE/BTL input control pin signal.
Improved Depop Circuitry to Eliminate Turn-on
and Turn-off Transients in Outputs
High PSRR
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32 Steps Volume Adjustable by DC Voltage with
Hysteresis
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2.6W per Channel Output Power into 4W Load at
5V,BTL Mode
Two Output Modes Allowable with BTL and SE
Modes Selected by SE/BTL pin
Low Current Consumption in Shutdown Mode
(1mA)
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Short Circuit Protection
Thermal shutdown protection and over current
protection circuitry
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·
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Maximum Output Swing Clamping Function
SOP-16-P Packages with Thermal Pad Package
Lead Free Available (RoHS Compliant)
Applications
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·
NoteBook PC
LCD Monitor or TV
Ordering and Marking Information
Package Code
APA2068
KA : SOP-16-P
Operating Ambient Temp. Range
Lead Free Code
Handling Code
Temp. Range
Package Code
°
I : - 40 to 85 C
Handling Code
TU : Tube
TR : Tape & Reel
Lead Free Code
L : Lead Free Device
Blank : Original Device
APA2068
XXXXX
APA2068 KA :
XXXXX - Date Code
Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate
termination finish; which are fully compliant with RoHS and compatible with both SnPb and lead-free soldiering
operations. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J STD-020C
for MSL classification at lead-free peak reflow temperature.
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 ã ANPEC Electronics Corp.
1
www.anpec.com.tw
Rev. A.2 - Jul., 2005
ANPEC [ ANPEC ELECTRONICS COROPRATION ]
