The PGA2311 is a high–performance, stereo audio volume control designed for professional and high-end
consumer audio systems. Using high performance operational amplifier stages internal to the PGA2311
yields low noise and distortion, while providing the capability to drive 600Ωloads directly without buffering. The 3-wire serial control interface allows for connection to a wide variety of host controllers, in addition to support for daisy-chaining of multiple PGA2311 devices.
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
0.0004% THD+N at 1kHz (U-Grade)
0.0002% THD+N at 1kHz (A-Grade)
NOISE-FREE LEVEL TRANSITIONS
LOW INTERCHANNEL CROSSTALK
–130dBFS
POWER SUPPLIES: ±5V Analog, +5V Digital
AVAILABLE IN DIP-16 AND SOL-16 PACKAGES
PIN AND SOFTWARE COMPATIBLE WITH THE CRYSTAL CS3310