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NE564 - Phase-locked Loop

General 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.

Key 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.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Philips Semiconductors Product specification Phase-locked loop NE/SE564 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. PIN CONFIGURATIONS D, N Packages V+ LOOP GAIN CONTROL INPUT TO PHASE COMP FROM VCO LOOP FILTER LOOP FILTER FM/RF INPUT BIAS FILTER GND 1 2 3 4 5 6 7 8 16 TTL OUTPUT 15 HYSTERESIS SET 14 ANALOG OUT 13 FREQ. SET CAP 12 FREQ.