HEF4751V - NXP

HEF4751V Universal divider

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. together with presca.

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 VOLTAGE RATING −0,5 to + 18 RECOMMENDED OPERATING 4,5 to 12,5 V FAMILY DATA, IDD LIMITS category LSI See Fam.