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APA7063K Datasheet

  • APA7063K

  • Stereo 1.5W Audio Power Amplifier with DC Volume Control

  • 237.03KB

  • 20頁

  • ANPEC

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APA7063
Stereo 1.5W Audio Power Amplifier with DC Volume Control
Features
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Operating Voltage: 3.3V to 5V
DC Volume Control Interface, 0dB to 鈥?05dB
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
= 0.7碌A
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 8鈩?Load
Output Power at 10% THD+N, V
DD
=5V
General Description
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
8鈩?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 鈥?05dB (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 0.7碌A (typ).
-1.5 W/Ch (typ) into an 8鈩?Load
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Low Crossover Distortion
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Low Quiescent Current
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Bridge-tied or Stereo(Single-ended) Configura-
tions
Applications
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Portable and Desktop Computers
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Multimedia Monitors
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Portable Radios, PDAs, and Portable TVs
Pin Description
SHUTDOWN
V
CC
DC Vol
Vo1
Vin1
Vin2
Vo2
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
+ OUT1
V
CC
- OUT1
Bypass
SE/BTL
- OUT2
V
CC
+ 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
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ANPEC Electronics Corp.
Rev. A.5 - Mar., 2003
1
www.anpec.com.tw

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