Audio amplifiers for high-quality home stereo systems
( 01 Jul 2004 )
National Semi-conductor's three stereo audio amplifiers in its Overture line of products for home stereo systems feature quiet fade-in/ fade-out mute mode circuitry that gradually brings the sound up or down. These "easy on the ears" transitions enhance the listening experience in compact stereos, high-definition televisions (HDTVs) and other consumer electronic equipment.
The LM4780 is a stereo audio amplifier capable of delivering 60W per channel of continuous average output power;the LM4781, a three channel audio amplifier capable of delivering 35W per channel of continuous average output power into an 8½ load; and the LM4782, a three channel audio channel capable of delivering 25W per channel of continuous average output power into an 8½ load;all with less than 0.5% total harmonic distortion plus noise (THD+N) from 20Hz to 20kHz.
All are are fully protected by National's self-peak instantaneous temperature (¡Ke) (SPiKe) protection circuitry. SPiKe protects the LM4780/81/82 outputs against over-voltage, undervoltage, overloads, shorts to the supply or ground, thermal runaway and instantaneous temperature peaks.
National Semi-conductor's three stereo audio amplifiers in its Overture line of products for home stereo systems feature quiet fade-in/ fade-out mute mode circuitry that gradually brings the sound up or down. These "easy on the ears" transitions enhance the listening experience in compact stereos, high-definition televisions (HDTVs) and other consumer electronic equipment.
