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LM4730TANSN/a1000avaiStereo 14W Audio Power Amplifier with Mute and Standby Modes


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LM4730TA
Stereo 14W Audio Power Amplifier with Mute and Standby Modes
LM4730
Stereo 14W Audio Power Amplifier with Mute and
Standby Modes
General Description

The LM4730isa stereo audio amplifier capableof delivering
typically 14W per channelof continuous average output
power intoa4Ωor8Ω load with less than 10% THD+N from
20Hz- 20kHz.
Each amplifier hasan independent smooth transition fade-
in/out mute anda power conserving standby mode which
canbe controlledby external logic.
The LM4730 has short circuit protection anda thermal shut
down feature thatis activated when the die temperature
exceeds 150˚C. The LM4730 also hasa under voltage lock
out featurefor click and pop free poweroff and on.
The LM4730 hasa wide operating supply range from +/-10V +/-25V allowingfor lower cost unregulated power suppliesbe used.
Key Specifications
Output power into4Ωor 8Ω, 10% THD+N 14W (typ) THD+Nat 1kHz with2X1W into8Ω 0.02% (typ) Mute Attenuation 85dB (typ) PSRR with fRIPPLE= 120Hz, VRIPPLE =1VRMS50dB (typ) Slew Rate 18V/µs (typ) Standby Current (+/-17V) 3.5mA (typ)
Features
Minimal amountof external components necessary Quiet fade-in/out mute mode Low current Standby-mode
Applications
Audio amplifierfor high-end stereo TVs Audio amplifierfor component stereo Audio amplifierfor compact stereo Audio amplifierforPC satellite speaker systems Audio amplifierfor self powered speakers
Connection Diagrams
Plastic Package
(Note 12) TO-220 Top Marking (Note 12)
Top View
Non-Isolated Package
Order Number LM4730TA
See NS Package Number TA15A
Top View- Wafer Fab Code- Assembly Plant Code- Date Code- Die Traceability
LM4730TA- LM4730TA
July 2003
LM4730
Stereo
14W
Audio
Power
Amplifier
with
Mute
and
Standby
Modes
ic,good price


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