SY89467U
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 100mV).
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 100mV (200mVPP) without any level shifting or termination resistor networks in the signal...