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Amplifiers/Converters??

Micrel buffers include 2:1 MUX input

Posted: 30 Jul 2002 ?? ?Print Version ?Bookmark and Share

Keywords:micrel semiconductor? sy8983u? sy100ep15v? fanout buffer? sonet/sdh buffer?

Micrel Semiconductor has unveiled their SY89830U and SY100EP15V 1:4 PECL/LVPECL fanout buffers, incorporating a 2:1 MUX input and targeted for redundant switchover requirements in SONET/SDH communications systems, high-end enterprise server applications, and ATE systems.

The SY89830U has differential 2:1 MUX inputs and is guaranteed to operate down to 2.3V, making it suitable for low-voltage, 2.5V PECL clock distribution systems.

The 3.3V/5V SY100EP15V is similar to the SY89830U but offers a single-ended and differential MUX inputs. It also has a reference voltage for single-ended inputs or ac-coupled applications.

Both fanout buffers include a synchronous enable function that force all outputs into a fixed logic state without any possibility of short, runt pulses. Maximum frequency is >2.5GHz, within-device skew is <25ps, propagation delay is <450ps, and output rise/fall time is <225ps.

The devices are offered in 5-by-4.4mm, 16-pin TSSOP casings and operate over -400C to 850C temp range.





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