неделя, 30 октомври 2011 г.

Мощен Н.Ч усилвател 56 вата, Videos - NATIONAL SEMICONDUCTOR - LM3876TF/NOPB - Audio Power Amplifier IC

NATIONAL SEMICONDUCTOR - LM3876TF/NOPB - Audio Power Amplifier IC - Мощен Н.Ч усилвател 56W
 Цена на дребно: 20 лв
Описание и технически параметри на линка LM3876

Features
  56W continuous average output power into 8
   100W instantaneous peak output power capability
   Signal-to-Noise Ratio >= 95 dB(min)
   An input mute function
   Output protection from a short to ground or to the supplies via internal current limiting circuitry
   Output over-voltage protection against transients from inductive loads
   Supply under-voltage protection, not allowing internal biasing to occur when |VEE| + |VCC| <= 12V, thus eliminating turn-on and turn-off transients
   11-lead TO-220 package
   Wide supply range 20V - 94V 




Description
The LM3876 is a high-performance audio power amplifier capable of delivering 56W of continuous average power to an 8 load with 0.1% THD+N from 20Hz-20kHz.
The performance of the LM3876, utilizing its Self Peak Instantaneous Temperature (°Ke) (SPiKe™) protection circuitry, puts it in a class above discrete and hybrid amplifiers by providing an inherently, dynamically protected Safe Operating Area (SOA). SPiKe protection means that these parts are completely safeguarded at the output against overvoltage, undervoltage, overloads, including shorts to the supplies, thermal runaway, and instantaneous temperature peaks.
The LM3876 maintains an excellent signal-to-noise ratio of greater than 95dB (min) with a typical low noise floor of 2.0µV. It exhibits extremely low THD+N values of 0.06% at the rated output into the rated load over the audio spectrum, and provides excellent linearity with an IMD (SMPTE) typical rating of 0.004%.
 Videos:

Applications
   Component stereo
   Compact stereo
   Self-powered speakers
   Surround-sound amplifiers
   High-end stereo TVs

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