Volume IC Exhibits Low Distortion And Wide Dynamic Range In Professional Audio Systems

Claimed as the industryÕs highest performance audio volume-control IC, the PGA2310 features a distortion figure of 0.0004% and a dynamic range of 120 dB. The device operates from ±15V analog power supplies and provides an inter-channel crosstalk of -126 dB.Independent volume control over two audio channels is accomplished via a serial-control interface. Other features of the IC include a gain and attenuation range of +31.5 dB to -95.5 dB in 0.5 dB steps, zero crossing detection, and a mute function. Available in SOL-16 and DIP-16 packages, price is $6.95 each/1,000. TEXAS INSTRUMENTS INC., Santa Clarita, CA. (800) 477-8924, ext. 4500.