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SY89228U Datasheet Clock Divider

Manufacturer: Micrel Semiconductor

Overview: www.DataSheet4U.com SY89228U 1GHz Precision, LVPECL ÷3, ÷5 Clock Divider with Fail-Safe Input and Internal Termination.

General Description

The SY89228U is a precision, low jitter 1GHz ÷3, ÷5 clock divider with an LVPECL output.

A unique FailSafe Input (FSI) protection prevents metastable output conditions when the input clock voltage swing drops significantly below 100mV or input is removed.

The differential input includes Micrel’s unique, 3-pin internal termination architecture that allows the input to interface to any differential signal (AC- or DCcoupled) as small as 100mV (200mVPP) without any level shifting or termination resistor networks in the signal path.

Key Features

  • Accepts a high-speed input and provides a precision ÷3 and ÷5 sub-rate, LVPECL output.
  • Fail-Safe Input.
  • Prevents oscillations when input is invalid.
  • Guaranteed AC performance over temperature and supply voltage:.
  • DC-to >1.0GHz throughput.
  • < 1500ps Propagation Delay (In-to-Q).
  • < 270ps Rise/Fall times.
  • Ultra-low jitter design:.

SY89228U Distributor & Price

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