+/-15V Stereo Audio Volume Control - PGA2310


+/-15V Stereo Audio Volume Control



The PGA2310 is a high-performance, stereo audio volume control designed for professional and high-end consumer audio systems. The ability to operate from ±15-V analog power supplies enables the PGA2310 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 PGA2310 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 multiple PGA2310 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
  • Low Interchannel Crosstalk: –126 dBFS
  • Noise-Free Level Transitions
  • Power Supplies: 15-V Analog, 5-V Digital
  • Available in DIP–16 and SOL–16 Packages
  • Pin and Software Compatible With the PGA2311
    and Cirrus Logic CS3310™

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Parametrics Compare all products in Volume Control

Special Features
Dynamic Range (dB)
Gain and Attenuation (dB)
Voltage Swing (Vpp)
Interchannel Crosstalk @ 1 kHz (dBFS)
THD + N @ 1 kHz (%)
Power Supply (V)
Approx. Price (US$)
Operating Temperature Range (C)
PGA2310 PGA2311 PGA2320 PGA4311
Two Independent Audio Channels     Two Independent Audio Channels     Two Independent Audio Channels     Four Independent Audio Channels    
120     120     120     120    
+31.5dB to -95.5dB with 0.5dB steps     +31.5dB to -95.5dB with 0.5dB     +31.5dB to -95.5dB with 0.5dB steps     +31.5 to -95.5 with 0.5dB steps    
27     7.5     28     7.5    
-126     -130     -126     -130    
0.0004     0.0002     0.0003     0.0002    
+/-15     +/-5     +/-15     +/-5    
16SOIC     28SOIC    
9.84 | 1ku     3.95 | 1ku     7.95 | 1ku     7.45 | 1ku    
-40 to 85     -40 to 85     -40 to 85     -40 to 85    

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