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SUPEC

SA4871 Datasheet Preview

SA4871 Datasheet

3W Mono Low-Voltage Audio Power Amplifier

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SA4871
3W Mono Low-Voltage Audio Power Amplifier
Features
General Description
Operating Voltage : 2.5V-5.5V
Bridge-Tied Load (BTL) Mode Operation
Supply Current – IDD=7mA at VDD=5V
Low Shutdown Current – IDD=0.1µA
Low Distortion
–2.5W, at VDD=5V, BTL, RL=3
The SA4871 is a bridged-tied load (BTL) audio power
amplifier developed especially for low-voltage
applications where internal speakers. Operating with
a 5V supply, the SA4871 can deliver 3.3W of
continuous power into a BTL 3load at 10% THD+N
THD+N=0.1%
throughout voice band frequencies. Although this
–2.1W, at VDD=5V, BTL, RL=4
device is characterized out to 20kHz, its operation is
THD+N=0.1%
optimized for narrow band applications such as
Output Power
wireless communications. The BTL configuration
at 1% THD+N
eliminates the need for external coupling capacitors
–2.6W, at VDD=5V, BTL, RL=3
–2.3W, at VDD=5V, BTL, RL=4
at 10% THD+N
on the output in most applications, which is particularly
important for small battery-powered equipment. This
–3.3W at VDD=5V, BTL, RL=3
device features a shutdown mode for power sensitive
–2.7W at VDD=5V, BTL, RL=4
applications with special depop circuitry to eliminate
Depop Circuitry Integrated
speaker noise when exiting shutdown mode. The
Thermal shutdown protection and over current SA4871 is available in a SOP-8-P or MSOP-8-P.
protection circuitry
High supply voltage ripple rejection
Surface-Mount Packaging
–MSOP-8-P (with enhanced thermal pad)
–SOP-8-P (with enhanced thermal pad)
Lead Free Available (RoHS Compliant)
Applications
Mobil Phones
PDAs
Portable Electronic Devices
Desktop Computers
Ordering and Marking Information
SA4871
SA4871 KA :
Lead Free Code
H a n d lin g C o d e
Tem p. Range
Package Code
SA4871
XXXXX
Package Code
K A : S O P -8-P
X A : M S O P -8-P
O p e rating Am b ie n t T e m p . R a n g e
I : -4 0 to 8 5 °C
H a n d lin g C o d e
TR : Tape & Reel
Lead Free Code
L : L e a d F r e e D e v ic e B la n k : O rig in a l D e v ic e
XXXXX - Date Code
SA4871 XA :
SA4871
XXX
XX
XXXXX - Date Code
Note: SUPEC 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. SUPEC 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.
SUPEC 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 © SUPEC Electronics Corp.
Rev. A.1 - Nov., 2006
1
www.supec.com.cn




SUPEC

SA4871 Datasheet Preview

SA4871 Datasheet

3W Mono Low-Voltage Audio Power Amplifier

No Preview Available !

SA4871
Block Diagram
4 IN-
3 IN+
2 B ypass
Vbias
VO+ 5
VO- 8
1 Shutdown
S h u t d o wn
C kt
Power an d
Depop Ckt
VDD 6
GND 7
Absolute Maximum Ratings
(Over operating free-air temperature range unless otherwise noted.)
Symbol
Parameter
Rating
VDD Supply Voltage
-0.3 to 6
VIN, VO Input Voltage Range, Shutdown, Bypass, VO
-0.3 to VDD+0.3
TA Operating Junction Temperature Range
-40 to 85
TJ Maximum Junction Temperature
Internally Limited
TSTG Storage Temperature Range
-65 to +150
TS Soldering Temperature Range
260
VESD Electrostatic Discharge
-2000 to 2000 (Note1)
-200 to 200 (Note2)
PD Power Dissipation
Internally Limited
Notes:
1.Human body model: C=100pF, R=1500, 3 positives pulses plus 3 negative pulses
2.Machine model: C=200pF, L=0.5µF, 3 positive pulses plus 3 negative pulses
Unit
V
V
°C
°C
°C
°C
V
W
Copyright © SUPEC Electronics Corp.
Rev. A.1 - Nov., 2006
2
www.supec.com.cn


Part Number SA4871
Description 3W Mono Low-Voltage Audio Power Amplifier
Maker SUPEC
Total Page 20 Pages
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