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APA7063 データシートの表示(PDF) - Anpec Electronics

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APA7063 Datasheet PDF : 20 Pages
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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, IDD = 13mA at Stereo BTL
Low Shutdown Current, IDD = 0.7µA
Bridge-Tied Load (BTL) or Single-Ended-(SE)
Modes Operation
Output Power at 1% THD+N, VDD=5V
-1.2 W/Ch (typ) into an 8Load
Output Power at 10% THD+N, V =5V
DD
-1.5 W/Ch (typ) into an 8Load
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
8with 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=0.7VDD) 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
VCC
2
DC Vol
3
Vo1
4
Vin1
5
Vin2
6
Vo2
7
GND
8
16
+ OUT1
15
VCC
14
- OUT1
13
Bypass
12
SE/BTL
11
- OUT2
10
VCC
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

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