APA7063 Datasheet, PDF (1/20 Pages) Anpec Electronics Coropration – Stereo 1.5W Audio Power Amplifier with DC Volume Control

APA7063
Stereo 1.5W Audio Power Amplifier with DC Volume Control
Features
General Description
• Operating Voltage: 3.3V to 5V
• DC Volume Control Interface, 0dB to –105dB
• Depop Circuitry Integrated
• Thermal shutdown protection circuitry
• High supply voltage ripple rejection
• Low Supply Current, I_DD = 13mA at Stereo BTL
• Low Shutdown Current, I_DD = 0.7µA
• Bridge-Tied Load (BTL) or Single-Ended-(SE)
Modes Operation
• Output Power at 1% THD+N, V_DD=5V
-1.2 W/Ch (typ) into an 8Ω Load
•
Output Power at 10% THD+N, V =5V
DD
-1.5 W/Ch (typ) into an 8Ω Load
• Low Crossover Distortion
• Low Quiescent Current
• Bridge-tied or Stereo(Single-ended) Configura-
tions
The APA7063 is a monolithic integrated circuit that pro-
vides DC volume control, and a stereo bridged audio
power amplifiers capable of producing 1.5W(1.2W) into
8Ω with less than 10%(1.0%) THD+N. APA7063 pro-
vides a volume control pin DC_Vol determines the at-
tenuation of output of the amplifiers. The attenuator range
is from 0dB (DC_Vol=0.7V_DD) to –105dB (DC_Vol=0V) with
32 steps. Both of the depop circuitry and the thermal
shutdown protection circuitry are integrated in the
APA7063, that reduces pops and clicks noise during power
up and when using the shutdown modes and protects
the chip from being destroyed by over temperature failure.
To simplify the audio system design applications, the
APA7063 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. The APA7063 also features a shutdown func-
tion which keeps the supply current only 0.7µA (typ).
Applications
• Portable and Desktop Computers
• Multimedia Monitors
• Portable Radios, PDAs, and Portable TVs
Pin Description
SHUTDOWN
1
V_CC
2
DC Vol
3
Vo1
4
Vin1
5
Vin2
6
Vo2
7
GND
8
16
+ OUT1
15
V_CC
14
- OUT1
13
Bypass
12
SE/BTL
11
- OUT2
10
V_CC
9
+ OUT2
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.5 - Mar., 2003
www.anpec.com.tw