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PDF APA2071 Data sheet ( Hoja de datos )
| Número de pieza | APA2071 | |
| Descripción | Stereo 3.1W Non-inverting Audio Power Amplifier | |
| Fabricantes | ANPEC | |
| Logotipo |  |
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APA2071
Stereo 3.1W Non-inverting Audio Power Amplifier(with DC Volume Control)
Features
General Description
• Non-Inverting Audio Power Amplifier
The APA2071 is a monolithic integrated circuit, which
• Low Operating Current about 9mA (Typical)
• Improved Depop Circuitry to Eliminate Turn-On
and Turn-Off Transients in Outputs
• 32-Step Volume Adjustable by DC Voltage
with Hysteresis
• Output Power
provides precise DC volume control, and a stereo
bridged audio power amplifiers capable of producing
2.6W (2W) into 4Ω with less than 10% (1.0%) THD+N.
The attenuator range of the volume control in APA2071 is
from 18dB (VVOLUME=0V) to -80dB (VVOLUME=3.54V) with 32
steps. The advantage of internal gain setting can be less
components and PCB area. Both the depop circuitry and
at 1% THD+N
the thermal shutdown protection circuitry are integrated
- 2.4W, at VDD=5V, BTL Mode, RL=3Ω
-
2W,
at
V =5V,
DD
BTL
Mode,
RL=4Ω
at 10% THD+N
in the APA2071, that reduce pops and clicks noise dur-
ing power up or shutdown mode operation. It also im-
proves the power off pop noise and protects the chip be-
- 3.1W, at VDD=5V, BTL Mode, RL=3Ω
ing destroyed by over temperature and short current
•
- 2.6W, at VDD=5V, BTL Mode, RL=4Ω
Two Output Modes: BTL and SE Modes Selected
failure. To simplify the audio system design, the APA2071
combines a stereo bridge-tied load (BTL) mode for
speaker drive and a stereo single-end (SE) mode for head-
by SE/BTL Pin
phone drive into a single chip, where both modes are
• Low Current Consumption in Shutdown Mode
easily switched by the SE/BTL input control pin signal.
(1µA, Typical)
• Short Circuit Protection
• Thermal Shutdown Protection and Over Current
Protection Circuitry
Applications
• The OUTN Signal and the INN Signal are Inphase • Notebook PC
• Power Enhanced Package (DIP-16 / DIP-16A)
• LCD Monitor or TV
• Lead Free and Green Devices Available
(RoHS Compliant)
Simplified Application Circuit
L-CH
Input
R-CH
Input
DC Volume
Control
LINN
LOUTN
Stereo
Speaker
RINN
LOUTP
APA2071
ROUTN
VOLUME
ROUTP
Stereo
Headphone
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.
Rev. A.3 - Nov., 2008
1
www.anpec.com.tw
Free Datasheet http://www.datasheet4u.com/
1 page  
APA2071
Typical Operating Characteristics
THD+N vs. Output Power
10
VDD = 5V
AV =18dB
fin = 1kHz
BTL Mode
1
RL = 4Ω
RL = 3Ω
RL = 8Ω
0.1
THD+N vs. Output Power
10
VDD = 5V
AV =12dB
fin = 1kHz
SE Mode
1
RL = 16Ω
RL = 32Ω
0.1
0.01
0
0.5 1 1.5 2 2.5 3 3.5
Output Power (W)
THD+N vs. Output Power
10
VDD = 5V
fin =1kHz
RL =3Ω
BTL Mode
1
AV = 18dB
0.1
AV = 6dB
0.01
0 0.5 1 1.5 2 2.5 3 3.5
Output Power (W)
THD+N vs. Frequency
10
VDD = 5V
RL =3Ω
PO = 1.8W
BTL Mode
1
AV=18dB
0.1
AV=6dB
0.01
20
100 1k
Frequency (Hz)
Copyright © ANPEC Electronics Corp.
Rev. A.3 - Nov., 2008
10k 20k
5
0.01
0
40m
80m
120m
160m 200m 240m
Output Power (W)
THD+N vs. Output Power
10
VDD = 5V
AV =18dB
RL =3Ω
BTL Mode
1 fin = 20kHz
0.1
0.05
10m
fin= 20Hz
fin= 1kHz
100m
1
Output Power (W)
5
THD+N vs. Frequency
10 VDD = 5V
AV = 6dB
RL =3Ω
BTL Mode
1
0.1
0.01
20
PO=1.8W
PO=0.9W
100 1k
Frequency (Hz)
10k 20k
www.anpec.com.tw
Free Datasheet http://www.datasheet4u.com/
5 Page 
APA2071
Typical Operating Characteristics (Cont.)
Gain vs. Volume Voltage
20
10
0
-10 Down
-20 Up
-30
-40
-50
-60 VDD=5V
-70 No Load
BTL Mode
-80
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
DC Voltage (V)
Supply Current vs. Supply Voltage
10.0
No Load
9.0
BTL
8.0
7.0
6.0
5.0
SE
4.0
3.0
2.03.0
3.5 4.0 4.5 5.0
Supply Voltage(V)
5.5
Power Dissipation vs.Output Power
2.0
1.8
1.6 RL=3Ω
1.4
1.2 RL=4Ω
1.0
0.8
0.6 RL=8Ω
0.4
0.2 VDD=5V
BTL Mode
0.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
Output Power (W)
Power Dissipation vs. Output Power
200 RL=8Ω
180
160
140
120 RL=16Ω
100
80 RL=32Ω
60
40
20
00
VDD=5V
SE Mode
50 100 150 200 250
Output Power(mW)
Output Power vs. Supply Voltage
4.0
RL=3Ω,THD+N=10%
3.5 RL=4Ω,THD+N=10%
RL=3Ω,THD+N=1%
3.0
2.5
2.0
1.5
1.0 RL=8Ω,THD+N=1%
0.5 RL=8Ω,THD+N=10%
BTL Mode
AV=6dB
0.0
4.50
RL=4Ω,THD+N=1%
4.75 5.00 5.25
5.50
Supply Voltage (V)
Copyright © ANPEC Electronics Corp.
Rev. A.3 - Nov., 2008
11
www.anpec.com.tw
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet APA2071.PDF ] | |
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