SY89847U
1.
5GHz Precision, LVDS 1:5 Fanout with 2:1 MUX and Fail Safe Input with Internal Termination
General Description
The SY89847U is a 2.
5V, 1:5 LVDS 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 (
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 path.
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