Profile: Pascall Electronics Ltd. designs & manufactures custom and standard power supplies and RF & microwave components, systems and sub-systems. RF & microwave products include custom & standard components for radar, EW receivers, navigation & location equipment, communication and marine safety systems. The digital phase detector (DPD) performs high speed measurement of the absolute phase difference between the two input signals and presents the result as an 8-bit word for further digital processing. The DPD comprises logarithmic detectors, constant transmission phase limiting amplifiers, a precision in-phase & quadrature detector and high speed analogue to digital conversion circuits.