Description

The 83PR226I-01 is a programmable LVPECL synthesizer that is

“forward” footprint compatible with standard 5mm x 7mm oscillators.

Forward footprint compatibility means, a board is designed to

accommodate the crystal oscillator interface, and the optional

control pins are also fully compatible with a canned oscillator

footprint (the canned oscillator will drop onto the 10-VFQFN footprint

for second sourcing purposes). This capability provides designers

with programability and lead time advantages of silicon/crystal based

solutions, while maintaining compatibility with industry standard

5mm x 7mm oscillator footprints for ease of supply chain

management. Oscillator-level performance is maintained with IDT’s

3rd generation FemtoClock® PLL technology, which delivers sub 1ps

RMS phase jitter.

The 83PR226I-01 defaults to 125MHz using a 25MHz crystal with all

4 of the programming pins floating (pulled HIGH with internal pullup

resistors), but can be also be set to 15 different frequency multiplier

settings to support a wide variety of applications. The table below

shows some of the more common application settings.

Features

• Footprint compatible with 5mm x 7mm differential oscillators

• One differential LVPECL output pair

• Crystal oscillator interface which can also be overdriven a

single-ended or differential reference clock

• Output frequency range: 83.33MHz – 213.33MHz

• Crystal/Input frequency range: 15.625MHz – 32MHz

• VCO range: 500MHz – 640MHz

• PCI Express (2.5Gb/s) and Gen 2 (5 Gb/s) jitter compliant

• Cycle-to-cycle jitter: 45ps (maximum)

• RMS phase jitter @ 125MHz, 1.875MHz – 20MHz:

0.47ps (typical)

• Full 3.3V or 2.5V operating supply

• -40°C to 85°C ambient operating temperature

• Available in lead-free (RoHS 6) packages