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SP8855E - 2.8GHz PARALLEL LOAD PROFESSIONAL SYNTHESISER

Datasheet Summary

Description

Input bus bit 10 Input bus bit 9 Input bus bit 8 Input bus bit 7 Input bus bit 6 Input bus bit 5 Input bus bit 4 Input bus bit 3 Input bus bit 2 Input bus bit 1 Input bus bit 0 0V (prescaler) RF input RF input VCC + 5V (prescaler) VEE 0V Lock detect output C-lock detect Rset Charge pump output Charg

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 www. DataSheet4U. com HP44 Pin 1 2 3 4 5 6 7 8 9 10 11 12 13.

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Datasheet Details

Part number SP8855E
Manufacturer Zarlink Semiconductor
File Size 478.99 KB
Description 2.8GHz PARALLEL LOAD PROFESSIONAL SYNTHESISER
Datasheet download datasheet SP8855E Datasheet
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Full PDF Text Transcription

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SP8855E 2.8GHz Parallel Load Professional Synthesiser Advance Information DS4239 ISSUE 3.0 PIN 1 March 1999 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. The SP8855E is intended for applications where a fixed synthesiser frequency is required although it can also be used where frequency selection is set by switches.
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