The SP8854E 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 parts in the series are the SP8852E which is fully programmable, requiring tw0 16-bit words to set the RF and reference counters and the SP8855E which is fully programmable using hard wired links or switches.

FEATUREs
• 2·7 GHz Operating Frequency
• Single 5V Supply
• Low Power Consumption <1·3W
• High Comparison Frequency : 20MHz
• High Gain Phase Detector : 1mA/rad
• Zero ‘Dead Band’ Phase Detector
• Wide Range of RF and Reference Division Ratios
• Programming by Single Word Data Transfer