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PA3431

Unisonic Technologies
Part Number PA3431
Manufacturer Unisonic Technologies
Description 2W STEREO AUDIO AMPLIFIER
Published Feb 2, 2016
Detailed Description UNISONIC TECHNOLOGIES CO., LTD PA3431 2W STEREO AUDIO AMPLIFIER  DESCRIPTION As a stereo audio speaker which is operat...
Datasheet PDF File PA3431 PDF File

PA3431
PA3431


Overview
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 110µA.
 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 © 2016 Unisonic Technologies Co.
, Ltd 1 of 11 QW-R502-225.
C PA3431  PIN CONFIGURATION GND GAIN0 GAIN1 1 2 3 LOUT+ LIN- PVDD RIN+ LOUTLIN+ 4 5 6 7 8 9 BYPASS 10 20 GND 19 SHUTDOWN 18 ROUT+ 17 RIN16 VDD 15 PVDD 14 ROUT13 GND 12 NC 11 GND CMOS IC  PIN DESCRIPTION PIN NO.
1,11 13,20 2 3 4 5 6,15 7 8 9 10 12 14 16 17 18 19 PIN NAME GND GAIN0 GAIN1 LOUT+ LINPVDD RIN+ LOUTLIN+ BYPASS NC ROUTVDD RINROUT+ SHUTDOWN I/O DESCRIPTION Ground I Bit 0 of gain control I Bit 1 of gain control O Positive output for left channel I Negative differential input for left channel I Supply voltage I Positive differential input for right channel O Negative output for left channel I Positive differential input for left channel Tap to voltage divider for internal mid supply bias generator Nothing connection O Negative output for right channel Supply voltage I Negative differential input for right channel O Positive output for right channel I In shutdown mode when held low UNISONIC TECHNOLOGIES CO.
, LTD www.
unisonic.
com.
tw 2 of 11 QW-R502-225.
C PA343...


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