General Description

The 8T73S208B-01 is a high-performance differential LVPECL

clock divider and fanout buffer. The device is designed for the

frequency division and signal fanout of high-frequency, low

phase-noise clocks. The 8T73S208B-01 is characterized to

operate from a 2.5V and 3.3V power supply. Guaranteed

output-to-output and part-to-part skew characteristics make the

8T73S208B-01 ideal for those clock distribution applications

demanding well-defined performance and repeatability. The

integrated input termination resistors make interfacing to the

reference source easy and reduce passive component count.

Each output can be individually enabled or disabled in the

high-impedance state controlled by a I2C register. On power-up, all

outputs are disabled.

Features

• One differential input reference clock

• Differential pair can accept the following differential input

levels: LVDS, LVPECL, CML

• Integrated input termination resistors

• Eight LVPECL outputs

• Selectable clock frequency division of ÷1, ÷2, ÷4 and ÷8

• Maximum input clock frequency: 1GHz

• LVCMOS interface levels for the control inputs

• Individual output enable/disabled by I2C interface

• Power-up state: all outputs disabled

• Output skew: 60ps (maximum)

• Output rise/fall times: 350ps (maximum)

• Low additive phase jitter, RMS: 182fs (typical)

• Full 2.5V and 3.3V supply voltages

• Lead-free (RoHS 6) 32-VFQFPN packaging

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