APA2068_12 Datasheet, PDF (1/24 Pages) Anpec Electronics Coropration – Stereo 2.6W Audio Power Amplifier (With DC_Volume Control)

APA2068
Stereo 2.6W Audio Power Amplifier (With DC_Volume Control)
Features
• Low Operating Current with 9mA
• Improved Depop Circuitry to Eliminate Turn-on
and Turn-off Transients in Outputs
• High PSRR
• 32 Steps Volume Adjustable by DC Voltage with
Hysteresis
• 2.6W per Channel Output Power into 4Ω 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
(1µA)
• Short-Circuit Protection
• Thermal Shutdown Protection and Over-Current
Protection Circuitry
• Maximum Output Swing Clamping Function
• The OUT+ Signal and the IN- Signal are Outphase
• SOP-16P Packages with Thermal Pad Package
• Lead Free and Green Devices Available
(RoHS Compliant)
General Description
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) into
4Ω with less than 10% (1.0%) THD+N. The attenuator
range of the volume control in APA2068 is from 20dB
(DC_Vol=0V) to -80dB (DC_Vol=3.54V) with 32 steps. The
advantage of internal gain setting can be less compo-
nents 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) mode for headphone drive
into a single chip, where both modes are easily switched
by the SE/BTL input control pin signal.
Applications
• NBs
• LCD Monitor or TVs
Ordering and Marking Information
APA2068
Assembly Material
Handling Code
Temperature Range
Package Code
Package Code
KA : SOP-16P
Operating Ambient Temperature Range
I : - 40 to 85 ^oC
Handling Code
TR : Tape & Reel
Assembly Material
L : Lead Free Device
G : Halogen and Lead Free Device
APA2068 KA :
APA2068
XXXXX
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. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J-STD-020D for
MSL classification at lead-free peak reflow temperature. ANPEC defines “Green” to mean lead-free (RoHS compliant) and halogen
free (Br or Cl does not exceed 900ppm by weight in homogeneous material and total of Br and Cl does not exceed 1500ppm by
weight).
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.8 - May., 2012
www.anpec.com.tw