SP8861 - Low Power Single-Chip Frequency Synthesiser

Product Overview

Zarlink Semiconductor

Datasheet Details

Part number	SP8861
Manufacturer	Zarlink Semiconductor
File Size	308.01 KB
Description	Low Power Single-Chip Frequency Synthesiser
Datasheet	SP8861 Datasheet
Additional preview pages of the SP8861 datasheet.

Product details

Description

Prescaler and AM Counter 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.A programmable divider of this type has a division ratio of MN1A and a minimum integer steppable division ratio of N(N21).In the SP8861, the dual modulus front end prescaler is a dual N ratio device, capable of being statically switched between

Features

s Improved Digital Phase Detector Eliminates HP28 ‘Dead Band’ Effects s Low Operating Power, Typically 175mW.
FPD and FREF outputs are reversed by the phase detector sense bit in the F1/F2 programming word. The s 1.
3GHz Operating Frequency above diagram is correct when the sense bit is low. See s Complete Phase Locked Loop Table 2 and Fig. 7. s High Input Sensitivity VCC1, VEE1.
preamplifier and prescaler supplies s Programmed throughThree-Wire Bus www. DataSheet4U. com VCC2, VEE2.

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Published: Apr 17, 2007 |