Description
   The Foundation GA3216 hybrid is a trimmer−configurable DSP system based on a two−channel compression circuit. It can efficiently replace traditional hearing−aid compression circuits without compromising fundamental performance requirements.
   A trimmer interface supports manual circuit configuration. It continuously monitors trimmer positions and translates them into the hearing−aid parameters of choice. A serial data interface provides full programmability at the factory and in the field.

FEATUREs
• Efficient, High Fidelity 1 or 2−Channel WDRC Signal Processing
• Fully Programmable via Serial Data Interface
• High−Fidelity Audio Quality
• Four Trimmer Inputs plus Volume Control
• Flexible Trimmer/Parameter Assignments
• Optional Two−Terminal or Three−Terminal Trimmers
• Choice of Wideband or Independent 2−Channel Level Detection
• Choice of Two Strategies for AGC−I Parametric Adjustment
• 6, 12 or 24 dB/Octave Band Split Filter or Configurable as
   Single−Channel Compressor
• In−Channel, Low Level Squelch Control (1:2 Expansion)
• Output Compression Limiting (AGC−O)
• Flexible Pre− and Post−Emphasis Filters
• Four Independent Memories
• Pulse−Density−Modulated Output Stage Drives Zero−Bias
   2−Terminal Receivers
• High-Power Drive Capability
• Unused Blocks can be Powered Down
• thinSTAX® Packaging
• Also Available as E1 RoHS Compliant Hybrid