SY89856U
SY89856U is 1:6 LVPECL Fanout Buffer manufactured by Micrel Semiconductor.
2GHz, Low-Power, 1:6 LVPECL Fanout Buffer with 2:1 Input MUX and Internal Termination
General Description
The SY89856U is a 2.5V/3.3V precision, high-speed, 1:6 fanout capable of handling clocks up to 2.0GHz. A differential 2:1 MUX input is included for redundant clock switchover applications.
The differential input includes Micrel’s unique, 3-pin input termination architecture that allows the device to interface to any differential signal (AC- or DC-coupled) as small as 100m V (200m Vpp) without any level shifting or termination resistor networks in the signal path. The outputs are LVPECL (100k, temperature pensated), with extremely fast rise/fall times guaranteed to be less than 200ps.
The SY89856U operates from a 2.5V ±5% supply or a 3.3V ±10% supply and is guaranteed over the full industrial temperature range of
- 40°C to +85°C. The SY89856U is part of Micrel’s high-speed, Precision Edge® product line.
Datasheets and support documentation are available on Micrel’s web site at: .micrel..
Features
- 6 ultra-low skew copies of the selected input
- 2:1 MUX input included for clock switchover applications
- Low power: 225m W typical (2.5V)
- 2.5V to 3.3V supply voltage
- Unique input isolation design minimizes crosstalk
- Guaranteed AC performance over temperature and voltage:
- Clock frequency range: DC to >2.0GHz
- <400ps IN-to-OUT tpd
- <200ps tr/tf times
- <30ps skew (output-to-output)
- Ultra-low jitter design:
- 40fs RMS phase jitter
- 0.7ps RMS crosstalk-induced jitter
- Unique input termination and VT pin accepts DC- and AC-coupled inputs (CML, PECL, LVDS)
- 100k LVPECL patible output swing
- - 40°C to +85°C industrial temperature range
- Available in 32-pin (5mm x 5mm) QFN package
Applications
- Redundant clock distribution
- All SONET/SDH clock/data distribution
- All Fibre Channel distribution
- All Gigabit Ethernet clock...
