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LM4734 bảng dữ liệu(PDF) 1 Page - Texas Instruments

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LM4734 bảng dữ liệu(HTML) 1 Page - Texas Instruments

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LM4734, LM4734TABD
www.ti.com
SNAS239A – MAY 2004 – REVISED MARCH 2006
LM4734 3 Channel 20W Audio Power Amplifier with Mute and Standby
Check for Samples: LM4734, LM4734TABD
1
FEATURES
DESCRIPTION
The LM4734 is a three channel audio amplifier
2
Low External Component Count
capable of typically delivering 20W per channel of
Quiet Fade-In/Out Mute Mode
continuous average output power into a 4
Ω or 8Ω
Low Power Standby Mode
load with less than 10% THD+N from 20Hz - 20kHz.
Wide Supply Range: 20V - 60V
The LM4734 has short circuit protection and a
thermal shut down feature that is activated when the
APPLICATIONS
die temperature exceeds 150°C. The LM4734 also
has an under voltage lock out feature for click and
Audio Amplifier for Component Stereo
pop free power on and off.
Audio Amplifier for Compact Stereo
Each amplifier of the LM4734 has an independent
Audio Amplifier for Home Theater in a Box
smooth transition fade-in/out mute and a power
(HTB)
conserving standby mode. The mute and standby
Audio Amplifier for High-End and HD TVs
modes can be controlled by external logic.
The LM4734 has a wide supply operating supply
KEY SPECIFICATIONS
range from ±10V - ±30V allowing for lower cost
Output Power/Channel with 10% THD+N, 1kHz
unregulated power supplies to be used.
into 4
Ω or 8Ω: 20W (typ)
The LM4734 can easily be configured for bridge or
THD+N at 3x1W into 8
Ω, 1kHz: 0.03% (typ)
parallel operation for higher power and bi-amp
solutions.
Mute Attenuation: 110dB (typ)
PSRR: 64dB (typ)
Slew Rate: 18V/
μs (typ)
Typical Application
Figure 1. Typical Audio Amplifier Application Circuit
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2004–2006, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


Số phần tương tự - LM4734_14

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