525R-04LF

Specifications

Temperature C Voltage 3.3 V Package QSOP 28 Speed NA


Description

PECL INPUT OSCAR USE
The 525R-04LF is the most flexible way to generate a high-quality, high-accuracy, high-frequency clock output from an inexpensive crystal or clock input. The user can easily configure the device to produce nearly any output frequency from any input frequency by grounding or floating the select pins. Neither microcontroller nor software nor device programmer are needed to set the frequency. Using Phase-Locked-Loop (PLL) techniques, the 525R-04LF accepts a standard fundamental mode, inexpensive crystal to produce output clocks up to 250 MHz. 525R-04LF can also produce a highly accurate output clock from a given input clock, keeping them frequency locked together. For similar capability with a serial interface, use the ICS 307.

These 525R-04LF are intended for clock generation. They have low output jitter (variation in the output period), but input to output skew and jitter are not defined nor guaranteed. For applications which require defined input to output timing, use the ICS527-01.

525R-04LF features:

Packaged as 28-pin SSOP (150 mil body)

Industrial and commercial versions available in Pb (lead) free package

User determines the output frequency by setting all internal dividers

Eliminates need for custom oscillators

No software needed

Online calculator determines register settings

Pull-ups on all select inputs

Input crystal frequency of 5 - 27 MHz

Input clock frequency of 2 - 50 MHz

Very low jitter

Duty cycle of 45/55 up to 200 MHz

Operating voltages of 3.0 to 5.5 V

Ideal for oscillator replacement

For Zero Delay, refer to the ICS527