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Amplifiers/Converters  

Diodes amp claims to reduce component count

Posted: 30 Apr 2014     Print Version  Bookmark and Share

Keywords:Diodes  amplifier  stereo speaker 

Diodes Inc. has introduced a Class D audio amplifier that the company said integrates an advanced 32-step up/down volume control. The PAM8407 enables a reduction in component count in various stereo speaker applications including PCs, docking stations and wireless speakers, added Diodes.

Able to drive dual 4Ω speakers at 3W per channel, from a 5V supply, the amplifier provides designers with simple two key up/down volume control and high-quality sound reproduction. With its fully differential inputs, the device ensures low noise, high PSRR and solid THD+N performance.

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The Class D amplifier's filter-less output architecture also saves space by minimising the number of external components, while also ensuring a lower quiescent current and improved EMI performance.

With its low pin count SO-16 packaging, small external circuit requirement and an efficiency of 87 per cent, the PAM8407 is geared for portable applications. The wide operating voltage range of 2.5-6V makes it well-suited for a 4x alkaline cell configuration, added Diodes.

The amplifier incorporates a range of safeguards to protect it from damage. These include auto-recovery short-circuit protection, under-voltage lockout and over-temperature protection.





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