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SY89221U

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 communications applications, the four independently controlled output banks are phase- matched and can be configured for pass ...

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SeekIC No. : 004510309 Detail

SY89221U: 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 communications application...

SY89221U Data Sheet

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Part Number:
SY89221U
Supply Ability:
5000

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  • 1~5000
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  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/12/23

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Description



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 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 of SY89221U  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 (200mV PP) without any level shifting or termination resistor networks in the signal path. The low-skew, low-jitter outputs are LVPECL compatible with extremely fast rise/fall times that are guaranteed to be less than 220ps.

The /MR (master reset) input of SY89221U 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 SY89221U is part of Micrel's Precision Edge ® product family. All support documentation can be found at Micrel's web site at: www.micrel.com.




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