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PDF PA3431 Data sheet ( Hoja de datos )
| Número de pieza | PA3431 | |
| Descripción | 2W STEREO AUDIO AMPLIFIER | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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UNISONIC TECHNOLOGIES CO., LTD
PA3431
2W STEREO AUDIO AMPLIFIER
DESCRIPTION
As a stereo audio speaker which is operating on a single 5V
supply, the UTC PA3431 is capable of delivering 2W of output
power per channel into 4Ω loads in Bridge-Tied Load (BTL) mode
with less than 1% THD+N. Way of two terminals (GAIN0 and
GAIN1) can configured and control the amplifier gain. It also
provided BTL gain settings of 6 dB, 10 dB, 15.6 dB, and 21.6 dB
(inverting). Other features: the SHDN mode is supported to disable
UTC PA3431 for the low current consumption applications; the
current consumption can be reduced to typically 150µA.
FEATURES
* 2W Output power into 4Ω load from 5V supply each channel
* Gain control internally
* Differential input fully
* Depop circuitry
* Shutdown protection thermally
ORDERING INFORMATION
Ordering Number
PA3431G-N20-R
Package
HTSSOP-20
CMOS IC
Packing
Tape Reel
MARKING
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co., Ltd
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PA3431
TYPICAL APPLICATION CIRCUIT(Cont.)
CMOS IC
LEFT
NEGATIVE
DIFFERENTIAL
INPUT
SIGNAL
SPEAKER
LEFT
RIGHT
POSITIVE
DIFFERENTIAL
INPUT
SIGNAL
LEFT
POSITIVE
DIFFERENTIAL
INPUT
SIGNAL
CLIN-
C1 1µF
VDD
CRIN+
C4 1µF
CLIN+
C2 1µF CB
C5 1µF
1 GND
GND 20
2
GAIN0
19
SHUTDOWN
3 GAIN1
ROUT+ 18
4 LOUT+
17
RIN-
5
LIN-
UTC PA3431
16
VDD
6 PVDD
PVDD 15
7 RIN+
ROUT- 14
8 LOUT-
9 LIN+
10 BYPASS
GND 13
NC 12
11
GND
TO SYSTEM CONTROL
CRIN-
C3 1µF
VDD
RIGHT
NEGATIVE
DIFFERENTIAL
INPUT
SIGNAL
CS1
1µF
SPEAKER
RIGHT
CS2
10µF
Typical Application Circuit Using Differential Inputs
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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PA3431
CMOS IC
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet PA3431.PDF ] | |
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