HFA3767

Features:

• I/Q Amplitude and Phase Balance . . . . . . . . . . . 0.5dB, 2o
• 130MHz AGC Amplifier/Attenuator range . . . . . . . .>70dB
• Low LO Drive Level . . . . . . . . . . . . . . . . . . . . . . . .-10dBm
• Power Enable/Disable Control
• Single Supply Battery Operation . . . . . . . . . . . 2.7 to 3.3V


Application

• IS95A CDMA/AMPS Dual Mode Handsets
• Wideband CDMA Handsets
• Full Duplex Transceivers
• CDMA/TDMA Packet Protocol Radios
• Portable Battery Powered Equipment


Pinout




Specifications

Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. -0.3V to +3.6V
Voltage on Any Other Pin . . . . . . . . . . . . . . .  . . -0.3V to V_CC +0.3V


Description

The HFA3767 is a monolithic bipolar quadrature modulator with gain control for CDMA/AMPS cellular applications. An upconverter quadrature mixer and an output gain control stage with better than 70dB of dynamic range are integrated in the design.

A local oscillator input requires low drive levels and a divide by two phase shifter with duty cycle compensation achieves excellent phase and amplitude balance properties. The HFA3767 is one of the four chips in the PRISM™ chip set and is housed in a 20 lead SSOP package ideally suited to cellular handset applications.