® HFA3767 www.
DataSheet4U.
com P RE L I M I N A RY Data Sheet February 1998 FN4298.
3 130MHz CDMA/AMPS Quadrature Modulator and AGC 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 applicatio...

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