NE564 Datasheet PDF - Philips

DESCRIPTION

●The NE/SE564 is a versatile, high guaranteed frequency phase-locked loop designed for operation up to 50MHz. As shown in the Block Diagram, the NE/SE564 consists of a VCO, limiter, phase comparator, and post detection processor.

●FEATURES

●•Operation with single 5V supply

●•TTL-compatible inputs and outputs

●•Guaranteed operation to 50MHz

●•External loop gain control

●•Reduced carrier feedthrough

●•No elaborate filtering needed in FSK applications

●•Can be used as a modulator

●•Variable loop gain (externally controlled)

●APPLICATIONS

●•High speed modems

●•FSK receivers and transmitters

●•Frequency Synthesizers