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PDF APA2068 Data sheet ( Hoja de datos )
| Número de pieza | APA2068 | |
| Descripción | Stereo 2.6W Audio Power Amplifier (with DC_Volume Control) | |
| Fabricantes | Anpec Electronics Coropration | |
| Logotipo |  |
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APA2068
Stereo 2.6W Audio Power Amplifier (with DC_Volume Control)
Features
General Description
• Low Operating Current with 9mA
• Improved Depop Circuitry to Eliminate Turn-on
and Turn-off Transients in Outputs
• High PSRR
• 32 Steps Volume Adjustable by DC Voltage with
Hysteresis
• 2.6W per Channel Output Power into 4Ω Load at
5V,BTL Mode
• Two Output Modes Allowable with BTL and SE
Modes Selected by SE/BTL pin
• Low Current Consumption in Shutdown Mode
(1µA)
• Short Circuit Protection
• Thermal shutdown protection and over current
protection circuitry
• Maximum Output Swing Clamping Function
• SOP-16-P Packages with Thermal Pad Package
• Lead Free Available (RoHS Compliant)
Applications
• NoteBook PC
• LCD Monitor or TV
APA2068 is a monolithic integrated circuit, which
provides precise DC volume control, and a stereo
bridged audio power amplifiers capable of producing
2.6W (1.8W) into 4Ω with less than 10% (1.0%)THD+N.
The attenuator range of the volume control in APA2068
is from 20dB (DC_Vol=0V) to -80dB (DC_Vol=3.54V)
with 32 steps. The advantage of internal gain setting
can be less components and PCB area. Both of the
depop circuitry and the thermal shutdown protection
circuitry are integrated in APA2068, that reduce pops
and clicks noise during power up or shutdown mode
operation. It also improves the power off pop noise
and protects the chip from being destroyed by over
temperature and short current failure. To simplify the
audio system design, APA2068 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.
Ordering and Marking Information
APA2068
Lead Free Code
Handling Code
Temp. Range
Package Code
Package Code
KA : SOP-16-P
Operating Ambient Temp. Range
I : - 40 to 85 °C
Handling Code
TU : Tube
TR : Tape & Reel
Lead Free Code
L : Lead Free Device
Blank : Original Device
APA2068 KA :
APA2068
XXXXX
XXXXX - Date Code
Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate
termination finish; which are fully compliant with RoHS and compatible with both SnPb and lead-free soldiering
operations. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J STD-020C
for MSL classification at lead-free peak reflow temperature.
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.2 - Jul., 2005
1
www.anpec.com.tw
1 page  
APA2068
Pin Function Description (Cont.)
No.
9
10,15
11
Pin
Name
LOUT-
VDD
LOUT+
13 SE/BTL
14 ROUT+
16 ROUT-
Config
Function Description
O Left channel positive output in BTL mode and SE mode.
- Supply voltage
O
Left channel negative output in BTL mode and high impedance in
SE mode.
I
Output mode control input, high for SE output mode and low for
BTL mode.
O
Right channel negative output in BTL mode and high impedance
in SE mode.
O Right channel positive output in BTL mode and SE mode.
Control Input Table
SHUTDOWN
L
H
H
H
Mute
X
L
L
H
SE/BTL
X
L
H
X
Operating mode
Shutdown mode
BTL out
SE out
Mute
Typical Application Circuit
VOLMAX Signal VOLMAX
V DD
0.1 µF
VDD
GND
L-CH
Input
R-Ch
Input
1 µF
LIN-
1 µF
RIN-
Volume
Control
V DD V DD
100k Ω
SE/BTL Signal
50kΩ
100k Ω
VOLUME
SE/BTL
Shutdow n
Signal
MUTE Signal
SHUTDOWN
MUTE
SE/BTL
Shutdown
ckt
Mute
100 µF
BYPASS
LOUT+
4Ω
LOUT-
220 µF
1k Ω
SE/BTL
Signal
B Y PA S S
2.2 µF
ROUT+
220 µF
4Ω
Control
Pin Ring
TipSleeve
Headphone
Jack
1k Ω
ROUT-
A2068_AppCkt
Copyright © ANPEC Electronics Corp.
Rev. A.2 - Jul., 2005
5
www.anpec.com.tw
5 Page 
APA2068
Typical Characteristics (Cont.)
THD+N vs. Frequency
10
VDD=5V
RL=16Ω
Po=125mW
Co=1000µf
SE
1
THD+N vs. Frequency
10
VDD=5V
Av=0dB
RL=16Ω
Co=1000µf
SE
1
Av = 0dB
0.1
Av = 14dB
Po = 125mW
0.1
Po = 60mW
0.01
20
100
1k
Frequency (Hz)
10k 20k
0.01
20
100 1k
Frequency (Hz)
10k 20k
THD+N vs. Output Power
10
V DD=5V
F=1KHz
RL=32Ω
SE
1
Av = 0dB
0.1
Av = 14dB
0.01
0
40m
80m
120m
160m 200m 240m
Output Power (W)
THD+N vs. Output Power
10
V DD=5V
A v=14dB
RL= 3 2 Ω
Co=1000 µf
SE
1
F = 20KHz
F = 20Hz
0.1
F = 1KHz
0.01
10m
50m
100m
200m 300m
Output Power (W)
Copyright © ANPEC Electronics Corp.
Rev. A.2 - Jul., 2005
11
www.anpec.com.tw
11 Page | ||
| Páginas | Total 27 Páginas | |
| PDF Descargar | [ Datasheet APA2068.PDF ] | |
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