General Description

The IDT8N3PF10VA-159I is a programmable LVPECL synthesizer

that is “forward” footprint compatible with standard 5mm x 7mm

oscillators. The device uses IDT’s fourth generation FemtoClock®

NG technology for an optimum of high clock frequency and low

phase noise performance. Forward footprint compatibility means that

a board designed to accommodate the crystal oscillator interface

and the optional control pins is 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.

The IDT8N3PF10VA-159I generates four default frequencies

100MHz or 156.25MHz from a 25MHz fundamental mode crystal, or

212.5MHz or 106.25MHz from a 26.5625MHz fundamental mode

crystal. The output frequency is selected by FSEL0 and FSEL1 pins.

Features

• Fourth Generation FemtoClock® NG technology

• Footprint compatible with 5mm x 7mm differential oscillators

• Generates 100MHz or 156.25MHz from a 25MHz crystal, or

212.5MHz or 106.25MHz from a 26.5625MHz mode crystal

• One differential LVPECL output pair

• Crystal oscillator interface which can also be overdriven using a

single-ended reference clock

• RMS phase jitter @ 156.25MHz, 10kHz – 1MHz: 0.201ps (typical)

• Full 3.3V or 2.5V operating supply

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

• Available in lead-free (RoHS 6) package