ON Semiconductor Launches New Class D Audio Amplifier with Integrated Charge Pump

ON Semiconductor, a global supplier of high performance, energy efficient, silicon solutions, has reportedly unveiled a new Class D Audio Amplifier with an integrated charge pump called, the NCP2830.

 

According to the company, the new NCP2830 provides a cost-effective and space-efficient speaker amplifier solution for applications such as cell phones, digital video recorders and portable speakers.

 

NCP2830 measures 3 mm x 3 mm x 0.5 mm and operates from a supply voltage of between 2.7 volts (V) and 5.5 V, has a fast start-up time of 200 micro seconds (µS) and a superior power supply ripple rejection ratio (PSRR) of -88 decibels (dB), occupying minimal board space and can also be used where component height is restricted.

 

In addition, the new amplifier is capable of delivering 1.0 W of continuous average power to an 8.0 Ω Bridge Tied Load with the voltage provided by a lithium ion battery using its integrated charge pump structure. NCP2830 is a preferred solution for long playback audio with minimum space required, says the company.

 

The company said the new amplifier offers efficiency up to 89 percent, and low noise performance by a signal-to-noise ratio (SNR) of 100 dB. An optimized Pulse (News - Alert) Width Modulation (PWM) output stage also gives the NCP2830 filterless capability that further reduces the number of external components required.

 

Marie Capron, low voltage power management business unit director with ON Semiconductor said that the growth and diversity of the market for portable wireless products such as cell phones and PDAs continues at an exciting pace and challenge the designers are facing is to deliver powerful, yet clear audio output.

 

Capron said that the new NCP2830 achieves the constant high power audio output with the smallest solution size and cost, thanks to the switched capacitor structure that makes the device unique in the market.

 

With its global logistics network and broad product portfolio, ON Semiconductor operates a network of manufacturing facilities, sales offices, and design centers in key markets throughout North America, Europe, and the Asia Pacific regions.