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Downloading music 'increases adoption of class D amplifiers'

Semiconductors used in digital-input class D amplifiers could see increasing demand as customers expect music downloads to be quicker.
Semiconductors used in digital-input class D amplifiers could face growing demand because of the popularity of downloading music from the internet.

IMS Research predicts that unit volumes for these amplifiers will grow by 35.9 per cent by the end of 2014, which could also drive demand for the semiconductors on which they are built.

Consumer demands for increased performance mean designers have taken advantage of closed-loop designs which deliver better power efficiencies.

The integrated circuit class H or G amplifiers are also expected to further their wide adoption because "form-factor reduction efforts in portable audio equipment are giving these previously niche components new life, as they work well with the piezoelectric speakers used in thinner devices and offer power performance comparable to digital solutions", the organisation asserted.

A move to compressed digital media away from analogue class AB amplifiers and related components has enabled designers to reduce their bill of material costs, it added.

Class D amplifiers with closed-loop feedback can reduce power demands and improve sound quality, lowering audio subsystem costs.ADNFCR-2855-ID-19439690-ADNFCR
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