參數(shù)資料
型號(hào)： APA7063K
廠商： Anpec Electronics Corporation
英文描述： Stereo 1.5W Audio Power Amplifier with DC Volume Control
中文描述： 立體聲1.5W音頻功率放大器具有直流音量控制
文件頁(yè)數(shù)： 1/20頁(yè)
文件大?。?/td> 236K
代理商： APA7063K
Copyright
ANPEC Electronics Corp.
Rev. A.5 - Mar., 2003
APA7063
www.anpec.com.tw
1
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.
Stereo 1.5W Audio Power
Amplifier with DC Volume Control
Features
General Description
Applications
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 8
Load
Output Power at 10% THD+N, V
DD
=5V
-1.5 W/Ch (typ) into an 8
Load
Low Crossover Distortion
Low Quiescent Current
Bridge-tied or Stereo(Single-ended) Configura-
tions
Portable and Desktop Computers
Multimedia Monitors
Portable Radios, PDAs, and Portable TVs
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
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).
SHUTDOWN
V
- OUT2
V
CC
+ OUT2
Vo1
Vin1
Vin2
Vo2
DC Vol
1
2
3
4
5
6
7
8
+ OUT1
V
CC
- OUT1
Bypass
SE/BTL
GND
16
15
14
13
12
11
10
9
Pin Description
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