FEATURES

DIGITALLY-CONTROLLED ANALOG VOLUME

CONTROL:

Two Independent Audio Channels

Serial Control Interface

Zero Crossing Detection

Mute Function

WIDE GAIN AND ATTENUATION RANGE:

+31.5dB to −95.5dB with 0.5dB Steps

LOW NOISE AND DISTORTION:

120dB Dynamic Range

0.0003% THD+N at 1kHz

LOW INTERCHANNEL CROSSTALK:

−126dBFS

NOISE-FREE LEVEL TRANSITIONS

POWER SUPPLIES:
15V Analog, +5V Digital

AVAILABLE IN SOL−16 PACKAGE

PIN-FOR-PIN COMPATIBLE WITH THE

PGA2310

APPLICATIONS

AUDIO AMPLIFIERS

MIXING CONSOLES

MULTI-TRACK RECORDERS

BROADCAST STUDIO EQUIPMENT

MUSICAL INSTRUMENTS

EFFECTS PROCESSORS

A/V RECEIVERS

CAR AUDIO SYSTEMS

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 600Ω 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.