Datasheet4U Logo Datasheet4U.com

SY89221U Datasheet Precision 1:15 Lvpecl Fanout Buffer

Manufacturer: Micrel Semiconductor (now Microchip Technology)

Overview: .. SY89221U Precision 1:15 LVPECL Fanout Buffer with 2:1 MUX and Four ÷1/÷2/÷4 Clock Divider Output Banks.

General Description

The SY89221U is a 2.5/3.3V precision, high-speed, integrated clock divider and LVPECL fanout buffer capable of handling clocks up to 1.5GHz.

Optimized for munications applications, the four independently controlled output banks are phasematched and can be configured for pass through ÷1, ÷2 or ÷4 divider ratios.

The differential input includes Micrel’s unique, 3-pin input termination architecture that allows the user to 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.

Key Features

  • Four low-skew LVPECL output banks with independently programmable ÷1, ÷2 and ÷4 divider options.
  • Four output banks, 15 total outputs.
  • Guaranteed AC performance over temperature and voltage:.
  • Accepts a clock frequency up to 1.5GHz.

SY89221U Distributor