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SP8861 - 13GHz Low Power Single-Chip Frequency Synthesiser

Description

The programmable divider chain is of AM counter design and therefore contains a dual modulus front end prescaler, an A counter which controls the dual modulus ratio and an M counter which controls the bulk multi-modulus division.

Features

  • s Improved Digital Phase Detector Eliminates ‘Dead Band’ Effects s Low Operating Power, Typically 175mW s 1.
  • 3GHz Operating Frequency s Complete Phase Locked Loop s High Input Sensitivity s Programmed throughThree-Wire Bus s Wide Range of Reference Division Ratios s Local Storage for Two Frequency Words, giving Rapid Frequency Toggling s Programmable Phase Detector Gain s Power Down Mode.

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Datasheet Details

Part number SP8861
Manufacturer Mitel Networks
File Size 200.62 KB
Description 13GHz Low Power Single-Chip Frequency Synthesiser
Datasheet download datasheet SP8861 Datasheet

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Full PDF Text Transcription

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SP8861 1·3GHz Low Power Single-Chip Frequency Synthesiser Supersedes version in the1996 Professional Products IC Handbook, HB2480 - 3.0 DS3640 - 4.0 April 1998 The SP8861 is a low power single chip synthesiser intended for professional radio applications, containing all the elements (apart from the loop amplifier) required to build a PLL frequency synthesis loop The device is serially programmable by a three-wire data highway and contains three independent buffers to store one reference divider word and two local oscillator divider words. A digital phase detector with two charge pumps, programmable in phase and gain, are provided to improve lock-up performance.
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