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HEF4751V - Universal divider

Description

The HEF4751V is a universal divider (U.D.) intended for use in high performance phase lock loop frequency synthesizer systems.

It consists of a chain of counters operating in a programmable feedback mode.

Programmable feedback signals are generated for up to three external (fast) ÷ 10/11 prescaler.

Features

  • of a single U. D. The U. D. provides a fast output signal FF at output OFF, which can have a phase jitter of ± 1 system input period, to allow fast frequency locking. The slow output signal FS at output OFS, which is jitter-free, is used for fine phase control at a lower speed. Fig.1 Pinning diagram. HEF4751VP(N): HEF4751VD(F): HEF4751VT(D): 28-lead DIL; plastic (SOT117) 28-lead DIL; ceramic (cerdip) (SOT135V) 28-lead SO; plastic (SOT136A) ( ): Package Designator North America SUPPLY.

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Full PDF Text Transcription

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INTEGRATED CIRCUITS DATA SHEET For a complete data sheet, please also download: • The IC04 LOCMOS HE4000B Logic Family Specifications HEF, HEC • The IC04 LOCMOS HE4000B Logic Package Outlines/Information HEF, HEC HEF4751V LSI Universal divider Product specification File under Integrated Circuits, IC04 January 1995 Philips Semiconductors Product specification Universal divider DESCRIPTION The HEF4751V is a universal divider (U.D.) intended for use in high performance phase lock loop frequency synthesizer systems. It consists of a chain of counters operating in a programmable feedback mode. Programmable feedback signals are generated for up to three external (fast) ÷ 10/11 prescaler. The system comprising one HEF4751V U.D.
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