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AS1001 chip outputs 100 watts of audio from 1.5 volts
Posted by admin on October 12th, 2009
Audium Semiconductor has launched an audio power amplifier IC which, at normal listening levels, is 20 times more efficient than competing devices, such as Class D amplifiers, without compromising audio quality. The AS1001 operates from a nominal 1.5 V power supply and delivers 100 W peak power output. The amplifier is so efficient that battery-powered amplified loudspeakers can run for up to 10 months on a set of four ‘C’ batteries, playing for three hours per day.
AS1001 chip outputs 100 watts of audio from 1.5 volts - [Link]
3 Responses to “AS1001 chip outputs 100 watts of audio from 1.5 volts”
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October 12th, 2009 at 6:58 pm
Marketing lies about “100W peak power” and “at a normal listening” level of only 0.25W.
They don’t even have any detailed spec’s for the new IC.
Its switching frequency is pretty low so it will be in trouble at high audio frequencies.
October 12th, 2009 at 11:42 pm
“20 times as efficient as Class D”? What does that mean exactly? If class D is (conservatively) 80% efficient, are they claiming 1600% efficiency?
Do they perhaps mean that they waste 1/20th the energy of a class D amplifier? That would be “1.2 times as efficient” best case.
October 27th, 2009 at 10:55 pm
I’m working for more than 20 years in electronics design. I’ve ordered hundreeds and hundreeds samples, not a single “normal” firm asked me money for them! This one (Audim) asks money for them! In the site they wrote: “Samples are available now, priced from $8 each in 1000+ quantities” (http://www.audiumsemi.com/news002.php). Imagine, they want to sell their samples in quantities of 1000 at a price of $8. Who is the freak that will order 1000 samples of a product without any datasheet? More than that, it is an UK based firm and they are asking to pay them in dollars, but they do not mention what dollars! Australian? Canadian? Hong Kong? Singapore? US? Or maybe fraudulent dollars!