1:2 CML FANOUT BUFFER/TRANSLATOR
Micrel, Inc.
7GHz, 1:2 CML FANOUT BUFFER/TRANSLATOR WITH INTERNAL I/O TERMINATION
Precision ESYd5g8e01®1U SY58011U
FE...
Description
Micrel, Inc.
7GHz, 1:2 CML FANOUT BUFFER/TRANSLATOR WITH INTERNAL I/O TERMINATION
Precision ESYd5g8e01®1U SY58011U
FEATURES
- Precision 1:2, 400mV CML fanout buffer - Low jitter performance:
49fsRMS phase jitter (typ) - Guaranteed AC performance over temperature/
voltage: > 7GHz fMAX clock < 60ps tr / tf times < 250ps tpd < 15ps max. skew - Accepts an input signal as low as 100mV - Unique input termination and VT pin accepts DCcoupled and AC-coupled differential inputs: LVPECL, LVDS, and CML - 50ohms source terminated CML outputs - Power supply 2.5V ±5% and 3.3V ±10% - Industrial temperature range: –40°C to +85°C - Available in 16-pin (3mm ∗ 3mm) QFN package
United States Patent No. RE44,134
APPLICATIONS
- All SONET and GigE clock distribution - Fibre Channel clock and data distribution - Backplanes - Data distribution: OC-48, OC-48+FEC, XAUI - High-end, low skew, multiprocessor synchronous
clock distribution
FUNCTIONAL BLOCK DIAGRAM
Precision Edge®
DESCRIPTION
The SY58011U is a 2.5V/3.3V precision, high-speed, fully differential 1:2 CML fanout buffer. Optimized to provide two identical output copies with less than 15ps of skew and only 49fsRMS phase jitter, the SY58011U can process clock signals as fast as 7GHz or data patterns up to 10.7Gbps.
The differential input includes Micrel’s unique, 3-pin input termination architecture that interfaces to LVPECL, LVDS, or CML differential signals, (AC-coupled or DC-coupled) as small as 100mV without any level-shifting o...
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