GENERAL DESCRIPTION

The AD9901 is a digital phase/frequency discriminator capable of directly comparing phase/frequency inputs up to 200 MHz. Processing in a high speed trench-oxide isolated process, combined with an innovative design, gives the AD9901 a linear detection range, free of indeterminate phase detection zones common to other digital designs.

FEATURES

Phase and Frequency Detection

ECL/TTL/CMOS Compatible

Linear Transfer Function

No “Dead Zone”

MIL-STD-883 Compliant Versions Available

APPLICATIONS

Low Phase Noise Reference Loops

Fast-Tuning “Agile” IF Loops

Secure “Hopping” Communications

Coherent Radar Transmitter/Receiver Chains