The HFA3665 is a monolithic bipolar downconverter for CDMA/AMPS cellular applications. Manufactured in the Intersil UHF1X process, the device consists of a low noise cascode amplifier, a double balanced downconversion mixer and a pair of linearized and temperature compensated PIN diode biasing current sources for external RF AGC applications. In addition, the device offers two independent and selectable differential mixer IF output ports to be used with dual mode IF filters and requires low drive levels from the local oscillator. The HFA3665 is one of the four chips in the PRISMTM chip set and is housed in a small outline 28 lead SSOP package ideally suited for cellular handset applications.