DESCRIPTION
The GK504 is Gennum’s proprietary low current preamplifier designed to drive the Class D series receivers. It consists of two independent single-ended, low noise inverting amplifiers, a symmetrical peak clipping, mid-supply referenced, transconductance output stage, and an on-chip microphone decoupling resistor.

FEATURES
• designed to drive Class D integrated receivers
• adjustable peak clipper
• low current drain
• low noise and distortion
• low external parts count
• two low noise preamplifiers
• transconductance output stage
• mid supply referenced output
• preamp A for Gain Trim or Telecoil