Date: 08/10/2009

New Class-G audio codec IC from Dialog Semiconductor with 2.5mW consumption

Dialog Semiconductor has introduce the DA7210, a high performance Class G audio codec that incorporates the onboard general-purpose filter (GPF). The filter is a configurable signal processing engine that enables fine-tuning and optimization of the output signal for small speakers and enclosures.

The DA7210 includes a true-ground, capacitor-less headphone driver to improve bass response and features low quiescent headphone playback power consumption at 2.5mW and only 5mW operating power under listening conditions, and suitable for low power digital portable audio products such as smart phones, personal media players, multimedia handsets and personal navigation devices.

The DA7210 uses output signal envelope tracking across multiple pre-defined levels for true ground operation and features an integrated PLL for sample rate flexibility, and delivers 40mW output into 16-Ohm headphones. The device operates down to 1.8V simplifying digital processor interfacing.

The GPF enables onboard signal tailoring and performance tuning without degradation or loss of sound quality, and removes the need for a dedicated external DSP.

"With the introduction of the DA7210 Dialog has significantly eased the portable audio design process for portable applications without sacrificing sound quality. By incorporating a GPF on the codec we have not only offloaded these tasks from the processor, we have significantly lowered the cost and power consumption when compared with traditional solutions that require an external DSP," said Mark Jacob, director of marketing at Dialog Semiconductor. "The DA7210 delivers the ultimate mix of high performance audio, ultra low power consumption, and reduced system design complexity."

The other key features of the DA7210 include,

Stereo playback/record
High signal-to-noise ratio (100dB DAC and 95dB ADC)
A 24-bit sample rate up to 96kHz and an integral I2C/PCM interface
It includes differential stereo microphone amplifiers

Package: 0.4mm-pitch QFN or CSP package with a 0.5mm-pitch CSP option (named the DA7211).
Availability:
Engineering samples will be available from November 2009 with volume production delivery from Q1 of 2010

For more details visit www.dialog-semiconductor.com

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