Description
The 8P34S2104 is a high-performance, low-power, differential
dual 1:4 LVDS Output 1.8V/2.5V fanout buffer. The device
supports fail-safe operation and is designed for the fanout of
high-frequency, very low additive phase-noise clock and data
signals. Two independent buffer channels are available. Each
channel has four low-skew outputs. High isolation between
channels minimizes noise coupling. AC characteristics such as
propagation delay are matched between channels.
Guaranteed output-to-output and part-to-part skew characteristics
make the 8P34S2104 ideal for those clock distribution
applications demanding well-defined performance and
repeatability. The device is characterized to operate from a 1.8Vor
a 2.5V power supply. The integrated bias voltage references
enable easy interfacing of AC-coupled signals to the device
inputs.

Features
▪ Dual 1:4 low skew, low additive jitter LVDS fanout buffers
▪ Matched AC characteristics across both channels
▪ High isolation between channels
▪ Both differential CLKA, nCLKA and CLKB, nCLKB inputs
accept LVDS, LVPECL and single-ended LVCMOS levels
▪ Maximum input clock frequency: 2GHz
▪ Output amplitudes: 350mV, 500mV (selectable)
▪ Output bank skew: 8ps typical
▪ Output skew: 10ps typical
▪ Low additive phase jitter, RMS: 45fs typical
(fREF = 156.25MHz, 12kHz–20MHz)
▪ Full 1.8V and 2.5V supply voltage mode
▪ Low device current consumption (IDD):
• 135mA typical: 1.8V
• 145mA typical: 2.5V
▪ Lead-free (RoHS 6), 28-VFQFPN packaging
▪ -40°C to +85°C ambient operating temperature
▪ Supports case temperature up to +105°C