FEATURES

CONTROL:

Two Independent Audio Channels

Serial Control Interface

Zero Crossing Detection

Mute Function

+31.5dB to −95.5dB with 0.5dB Steps

120dB Dynamic Range

0.0003% THD+N at 1kHz

−126dBFS

PGA2310

APPLICATIONS

DESCRIPTION

The PGA2320 is a high-performance, stereo audio volume

control designed for professional and high-end consumer

audio systems. The ability to operate from

±15V analog

power supplies enables the PGA2320 to process input

signals with large voltage swings, thereby preserving the

dynamic range available in the overall signal path. Using

high performance operational amplifier stages internal to

the PGA2320 yields low noise and distortion, while

providing the capability to drive 600

Ω loads directly

without buffering. The three-wire serial control interface

allows for connection to a wide variety of host controllers,

in addition to support for daisy-chaining of multiple

PGA2320 devices.

PGA2320

SBOS312B − JULY 2004 − REVISED DECEMBER 2004

Stereo Audio Volume Control

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Copyright

 2004, Texas Instruments Incorporated

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments

semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date. Products

conform to specifications per the terms of Texas Instruments standard warranty.

Production processing does not necessarily include testing of all parameters.