描述 Description

The 8SLVP1212 is a high-performance, 12 output differential

LVPECL fanout buffer. The device is designed for the fanout of

high-frequency, very low additive phase-noise clock and data signals.

The 8SLVP1212 is characterized to operate from a 3.3V and 2.5V

power supply. Guaranteed output-to-output and part-to-part skew

characteristics make the 8SLVP1212 ideal for those clock distribution

applications demanding well-defined performance and repeatability.

Two selectable differential inputs and twelve low skew outputs are

available. The integrated bias voltage generators enables easy

interfacing of single-ended signals to the device inputs. The device is

optimized for low power consumption and low additive phase noise.

特性 Features

? Twelve low skew, low additive jitter LVPECL outputs

? Two selectable, differential clock inputs

? Differential pairs can accept the following differential input

levels: LVDS, LVPECL, CML

? Maximum input clock frequency: 2GHz

? LVCMOS interface levels for the control input (input select)

? Output skew: 33ps (maximum)

? Propagation delay: 550ps (maximum)

? Low additive phase jitter, RMS at fREF = 156.25MHz, VPP = 1V,

12kHz–20MHz: 60fs (maximum)

? Full 3.3V and 2.5V supply voltage

? Device current consumption (IEE): 131mA (maximum)

? Available in Lead-free (RoHS 6), 40-VFQFPN package

? -40°C to +85°C ambient operating temperature

? Differential PCLK0, nPCLK0 and PCLK1, nPCLK1 pairs can also

accept single-ended LVCMOS levels. See Applications section

Wiring the Differential Input Levels to Accept Single-ended Levels

(Figure 1A and Figure 1B)

? Supports PCI Express Gen1–5