Description

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.

Features

• RF Frequency Range. . . . . . . . . . . . 869MHz to 895MHz

• IF Operation . . . . . . . . . . . . . . . . . . . . 10MHz to 100MHz

• LNA Gain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16dB

• LNA NF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3dB

• Mixer Gain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16dB

• Mixer NF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11dB

• Single Supply Battery Operation . . . . . . . . 2.7V to 3.3V

• Power Enable/Disable Control

• PIN Diode Attenuator DC Control

Applications

• IS95A CDMA/AMPS Dual Mode Handsets

• Wideband CDMA Handsets

• CDMA/TDMA Packet Protocol Radios

• Full Duplex Transceivers

• Portable Battery Powered Equipment