IDT Introduces Industry's First HD Audio Codec With Class-G Headphone And DDX Class-D Speaker Amps For Ultra-low Power Consumption (Graphic: Business Wire)

Integrated Device Technology, Inc. ( IDT ^®) (NASDAQ: IDTI), the Analog and Digital Company™ delivering essential mixed-signal semiconductor solutions, today announced that it has introduced the industry’s first high-definition (HD) audio codec with integrated class-G headphone amplifier (amp) and DDX™ class-D speaker amp for ultra-low power consumption. IDT designed the innovative codec to meet the stringent requirements of Windows 8’s low-power runtime D3 standby mode, extending battery life in next-generation notebooks and tablets.

The IDT 92HD95B is a four-channel HD audio codec (two stereo DACs, two stereo ADCs) with 24-bit resolution. The class-G headphone amp can reduce power consumption by up to 50 percent versus current-generation class-AB headphone amps, while the DDX speaker amp can reduce power by up to 70 percent versus standard class-D solutions. These significant power savings translate directly into longer battery life in any mainstream notebook or tablet design based on the HD audio bus.

“With the impending launch of Windows 8 notebooks and tablets later this year, the market demands an ultra-low-power HD audio codec to meet the long battery life expectations of the consumer,” said Patrick Griffith, senior marketing director of the audio business unit at IDT. “The IDT 92HD95 is the industry’s first HD audio codec to feature a class-G headphone amp and DDX class-D speaker amp, delivering the high performance and low power consumption that our customers require. The affordable price and standard packaging make this an ideal solution for any next-generation notebook or tablet with an HD audio bus.”

The IDT 92HD95B features several integrated hardware functions that enhance audio performance, including a selectable frequency high-pass filter for speaker protection and a 10-band parametric equalizer for speaker optimization in a variety of operating scenarios. In addition, the audio codec includes a hardware-based compressor/limiter that allows for higher average volume levels without causing resonance or speaker damage.

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