The SP8855E is one of a family of parallel load synthesisers containing all the elements apart from the loop amplifier to fabricate a PLL synthesis loop. Other devices in the series are the SP8852E which is a fully programmable device requiring two 16 bit words to set the RF and reference counters, and the SP8854E which has hard wired reference counter programming and requires a single bit word to program the RF divider. The SP8855E replaces the existing SP8855D.

Features

• 2.8GHz Operating Frequency (IG GRADE)

• Single 5V Supply Operation

• High Comparison Frequency 50MHz

• High Gain Phase Detector 1mA/rad

• Programmable Phase Detector Gain

• Zero Dead Band Phase Detector

• Wide range of RF and Reference Divide Ratios

• Programming by Hard Wired Inputs

• Low cost plastic package option

• GPS HI-REL level a screened option