APA7063
器件描述：Stereo 1.5W Audio Power Amplifier with DC Volume Control
器件厂商：ANPEC [Anpec Electronics Coropration]
文件大小：236.03KB，共20页
Sponsor by e络盟器件资料摘要：
Copyright ANPEC Electronics Corp.
Rev. A.5 - Mar., 2003
APA7063
www.anpec.com.tw1
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 8Ω Load
• Output Power at 10% THD+N, V
DD
=5V
-1.5 W/Ch (typ) into an 8Ω Load
• Low Crossover Distortion
• Low Quiescent Current
• Bridge-tied or Stereo(Single-ended) Configura-
tions
•G20 Portable and Desktop Computers
•G20G20 Multimedia Monitors
•G20G20 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
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).
SHUTDOWN
V
CC
- OUT2
+ OUT2
Vo1
DC Vol
Vin1
1
2
3
4
5
6
7
8
+ OUT1
V
CC
- OUT1
Bypass
SE/BTL
GND
16
15
14
13
12
11
10
9
Vin2
Vo2 V
CC
Pin Description
Rev. A.5 - Mar., 2003
APA7063
www.anpec.com.tw1
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 8Ω Load
• Output Power at 10% THD+N, V
DD
=5V
-1.5 W/Ch (typ) into an 8Ω Load
• Low Crossover Distortion
• Low Quiescent Current
• Bridge-tied or Stereo(Single-ended) Configura-
tions
•G20 Portable and Desktop Computers
•G20G20 Multimedia Monitors
•G20G20 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
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).
SHUTDOWN
V
CC
- OUT2
+ OUT2
Vo1
DC Vol
Vin1
1
2
3
4
5
6
7
8
+ OUT1
V
CC
- OUT1
Bypass
SE/BTL
GND
16
15
14
13
12
11
10
9
Vin2
Vo2 V
CC
Pin Description