APA2603 Datasheet, PDF (1/25 Pages) Anpec Electronics Coropration – 3W Stereo Class D Audio Power Amplifier (with DC Volume Control)

APA2603
3W Stereo Class D Audio Power Amplifier (with DC Volume Control)
Features
General Description
• Operating Voltage: 3.3V-5.5V
The APA2603 is a stereo, high efficiency, filter-free Class-
• High Efficiency 85% at P_O=3W, 4Ω Speaker, V_DD=5V ^{D audio amplifier available in SOP-16P and DIP-16}
• Filter-Free Class D Amplifier
packages.
• Low Shutdown Current
The APA2603 provides the precise DC volume control,
•
- I_DD=1µA at V_DD=5V
64 Steps Volume Adjustable from -80dB to +20dB
the gain range is from -80dB (V_VOLUME=5V) to +20dB
(V_VOLUME=0V) with 64 steps precise control. It’s easy to get
the suitable amplifier’s gain with the 64 steps gain setting.
by DC Voltage with Hysteresis
• Output Power at THD+N=1%
The filter-free architecture eliminates the output filters
compared to the traditional Class-D audio amplifier and
- 2.6W at V_DD=5V ,R_L=3Ω
reduces the external component counts and the compo-
- 2.4W at V_DD=5V, R_L=4Ω
nents high. Besides, it can save the PCB space, system
- 1.4W at V_DD=5V, R_L=8Ω
Output Power at THD+N=10%
cost, and simplify the design and the power loss at filter.
The APA2603 also integrates the de-pop circuitry that re-
- 3.2W at V_DD=5V ,R_L=3Ω
duces the pops and click noises during power on/off or
shutdown enable process.
-
3W
at
V =5V,
DD
R_L=4Ω
The APA2603 has build-in, over-current, and thermal pro-
-
1.75W
at
V =5V,
DD
R_L=8Ω
• Less External Components Required
tection that prevent the chip being destroyed by short cir-
cuit or over temperature situation.
• Thermal and Over-Current Protections with Auto- _{APA2603 is capable of driving 3W at 5V into 4Ω speaker.}
Recovery
• Pin-to-Pin Compatible APA2069 and APA2071
• Power Enhanced Packages SOP-16P & DIP-16
The efficiency can archive 85% at R_L=4Ω when P_O=3W at
V =5V.
DD
• Lead Free and Green Devices Available
(RoHS Compliant)
Simplified Application Circuit
Applications
• LCD TVs
• DVD Player
• Active Speakers
Stereo Input
Signals
DC Volume
Control
ROUTP
RINN
LINN
ROUTN
APA2603
VOLUME
LOUTN
LOUTP
Stereo
Speakers
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.6 - Mar., 2013
www.anpec.com.tw