SY54011R

Low Voltage 1.2V/1.8V CML 1:2 Fanout

Buffer, 3.2Gbps, 3.2GHz

Precision Edge is a registered trademark of Micrel, Inc.

MLF and MicroLeadFrame are registered trademarks of Amkor Technology.

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

March 2008

M9999-033108-A

General Description

The SY54011R is a fully differential, low voltage

1.2V/1.8V CML 1:2 fanout buffer. It is optimized to

provide two identical output copies with less than 15ps

can process clock signals as fast as 3.2GHz or data

patterns up to 3.2Gbps.

The differential input includes Micrel’s unique, 3-pin

input termination architecture that interfaces to LVPECL,

LVDS or CML differential signals, (AC- or DC-coupled

without any level-shifting or termination resistor

networks in the signal path. For AC-coupled input

interface applications, an integrated voltage reference

CML, with extremely fast rise/fall times guaranteed to be

less than 95ps.

The SY54011R operates from a 2.5V ±5% core supply

and a 1.8V or 1.2V ±5% output supply and is

guaranteed over the full industrial temperature range

(–40°C to +85°C). The SY54011R is part of Micrel’s

high-speed, Precision Edge

Datasheets and support documentation can be found on

Functional Block Diagram

Precision Edge

®

Features

∑ 1.2V/1.8V CML 1:2 fanout buffer

∑ Guaranteed AC performance over temperature and

voltage:

– DC-to- > 3.2Gbps throughput

– <300ps propagation delay (IN-to-Q)

– <15ps within-device skew

– <95ps rise/fall times

∑ Ultra-low jitter design

∑ High-speed CML outputs

∑ 2.5V ±5% , 1.8/1.2V ±5% power supply operation

∑ Industrial temperature range: –40°C to +85°C

∑ Available in 16-pin (3mm x 3mm) MLF

Applications

∑ Data Distribution: OC-48, OC-48+FEC

∑ SONET clock and data distribution

∑ Fibre Channel clock and data distribution

∑ Gigabit Ethernet clock and data distribution

Markets

∑ Storage

∑ ATE

∑ Test and measurement

∑ Enterprise networking equipment

∑ High-end servers

∑ Access

∑ Metro area network equipment