SY89467U
SY89467U is Precision LVPECL 1:20 Fanout manufactured by Micrel Semiconductor.
Precision LVPECL 1:20 Fanout with 2:1 MUX and Internal Termination with Fail-Safe Input
General Description
The SY89467U is a 2.5/3.3V, 1:20 LVPECL fanout buffer with a 2:1 differential input multiplexer (MUX). A unique Fail-Safe Input (FSI) protection prevents metastable output conditions when the selected input clock fails to a DC voltage (when voltage between the pins of the differential input drops significantly below 100m V).
The differential input includes Micrel’s unique, 3-pin internal termination architecture that can interface to any differential signal (AC- or DC-coupled) as small as 100m V (200m VPP) without any level shifting or termination resistor networks in the signal path. The outputs are 800m V, LVPECL with fast rise/fall times guaranteed to be less than 270ps.
The SY89467U operates from a 2.5V ±5% or 3.3V ±10% supply and is guaranteed over the full industrial temperature range of
- 40°C to +85°C. The SY89467U is part of Micrel’s high-speed,...
