SY89218UHY

SY89218U Precision 1:15 LVDS Fanout Buffer with 2:1 MUX and Four ÷1/÷2/÷4 Clock Divider Output Banks General Description Features The SY89218U is a 2.5V precision, high-speed, integrated clock divider and LVDS fanout buffer capable of handling clocks up to 1.5GHz. Optimized for communications applications, the four independently controlled output banks are phase-matched 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. The low-skew, low-jitter outputs are LVDS compatible with extremely fast rise/fall times guaranteed to be less than 200ps. The /MR (master reset) input asynchronously resets the outputs. A four-clock delay after de-asserting /MR allows the counters to synchronize and start the outputs from the same state without any runt pulse. The SY89218U is part of Micrel’s Precision Edge® product family. All support documentation can be found at Micrel's web site at: www.micrel.com. • Low-skew LVDS 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 –