APA2069 查看數據表（PDF） - Anpec Electronics
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APA2069 Datasheet PDF : 26 Pages
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APA2069
Stereo 2.6W Audio Power Amplifier (with DC_Volume Control)
Features
General Description
• Low Operating Current with 9mA
APA2069 is a monolithic integrated circuit, which
• Improved Depop Circuitry to Eliminate Turn-on provides precise DC volume control, and a stereo
and Turn-off Transients in Outputs
bridged audio power amplifiers capable of producing
• High PSRR
2.6W (1.8W) into 4Ω with less than 10% (1.0%)THD+N.
• 32 Steps Volume Adjustable by DC Voltage
with Hysteresis
The attenuator range of the volume control in APA2069
is from 20dB (DC_Vol=0V) to -80dB (DC_Vol=3.54V)
• 2.6W per Channel Output Power into 4Ω Load with 32 steps. The advantage of internal gain setting
can be less components and PCB area. Both of the
at 5V,BTL Mode
• Two Output Modes Allowable with BTL and SE depop circuitry and the thermal shutdown protection
circuitry are integrated in APA2069, that reduce pops
Modes Selected by SE/BTL pin
and clicks noise during power up or shutdown mode
• Low Current Consumption in Shutdown Mode
operation. It also improves the power off pop noise
(1µA)
and protects the chip from being destroyed by over
• Short Circuit Protection
temperature and short current failure. To simplify the
• Thermal shutdown protection and over current audio system design, APA2069 combines a stereo
protection circuitry
bridge-tied loads (BTL) mode for speaker drive and a
• Power DIP-16 Package
stereo single-end (SE) mode for headphone drive into
• Lead Free Available (RoHS Compliant)
a single chip, where both modes are easily switched
by the SE/BTL input control pin signal.
Applications
• NoteBook PC
• LCD Monitor or TV
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.
1
Rev. A.1 - Aug., 2005
www.anpec.com.tw
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