74HCT297 Datasheet (Philips) - Digital phase-locked-loop filter

74HCT297, Digital phase-locked-loop filter

The 74HC/HCT297 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL).

They are specified in compliance with JEDEC standard no.

7A.

The 74HC/HCT297 are designed to provide a simple, cost-effective solution to high-accuracy, digital, phase-locked-loop applicat

74HCT297 Features

* Digital design avoids analog compensation errors

* Easily cascadable for higher order loops

* Useful frequency range:

* DC to 55 MHz typical (K-clock)

* DC to 35 MHz typical (I/D-clock)

* Dynamically variable bandwidth

* Very narrow bandwidth