2013年7月14日星期日

Analogue / Linear / Mixed Signal ICs Audio chip has wide dynamic range for smartphones

Analogue / Linear / Mixed Signal ICs Audio chip has wide dynamic range for smartphones


ESS Technology’s latest derivative of its 32-bit reference stereo digital-to-analogue converter is a two-channel converter targeted at smartphones, tablets and digital music players, as well as consumer devices such as Blu-ray players, audio pre-amplifiers and A/V receivers, and professional devices such as recording systems, mixer consoles and digital audio.

Ismosys is ESS Technology’s pan-European representative/stockiest and Dave Blissett, Ismosys’ ESS product manager: “Unlike conventional sigma-delta (Σ∆) DACs, the ES9018-2M Sabre32 Reference Stereo DAC incorporates patented circuits to deliver spectacular music with up to 127dB dynamic range and 0.0001% (-120dB) total harmonic distortion, free from the clock jitter that commonly plagues digital audio systems.”

Blissett continued. “The 32-bit HyperStream modulator is capable of 100% modulation and unconditional stability; the Revolver Dynamic Element Matching ensures performance over a wide dynamic range, while a Time Domain Jitter Eliminator removes the digital jitter that causes distortion”.

The ES9018-2M Sabre32 Reference Stereo DAC supports stereo conversion from digital audio input in PCM, DSD or SPDIF formats of up to 384kHz sampling rate, in both synchronous and ASRC (asynchronous sample rate conversion) modes, featuring click-free soft mute, volume control, de-emphasis, programmable zero detect, a small 28-QFN (5mm x 5mm) package and low power consumption – less than 40mW in normal operation and 1mW in standby.

Samples of the new ES9018-2M SABRE32 Reference Stereo DAC are available in a 28-QFN package, which Ismosys supports with ESS evaluation boards.


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