DESCRIPTION
The GK509 is a Class A amplifier utilizing Gennum’s proprietary low voltage JFET technology. It consists of a single-ended, low noise inverting gain block, a Class A output stage, an on-chip microphone decoupling resistor, and a pair of Schottky diodes for symmetrical peak clipping.

FEATURES
• 100 µA typical current drain
• low noise and distortion
• 1.0 to 5 VDC operating range
• DC coupled stages
• Class A output stage
• Schottky diodes for MPO control
• variable transducer current
• 4 kΩ microphone decoupling resistor