PGA2311 - +/-5V Stereo Audio Volume Control

The PGA2311 device is a high-performance, stereo audio volume control designed for professional and high-end consumer audio systems. The PGA2311 uses an internal high-performance operational amplifier to yield low noise and distortion. The PGA2311 also provides the capability to drive 660-Ω loads 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.

• Digitally-Controlled Analog Volume Control:
  • Two Independent Audio Channels
  • Serial Control Interface
  • Zero Crossing Detection
  • Mute Function
• Wide Gain and Attenuation Range:
  +31.5 dB to −95.5 dB with 0.5-dB Steps
• Low Noise and Distortion:
  • 120-dB Dynamic Range
  • 0.0004% THD+N at 1 kHz (U-Grade)
  • 0.0002% THD+N at 1 kHz (A-Grade)
• Noise-Free Level Transitions
• Low Interchannel Crosstalk: −130 dBFS
• Power Supplies: ±5-V Analog, +5-V Digital
• Available in PDIP-16 and SOIC-16 Packages
• Pin- and Software-Compatible With the Crystal
  CS3310