SY56017R

Low Voltage 1.2V/1.8V/2.5V CML 2:1 MUX

6.4Gbps with Equalization

Preliminary

Precision Edge is a registered trademark of Micrel, Inc.

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

July 2008

M9999-070308-A

hbwhelp@micrel.com or (408) 955-1690

General Description

The SY56017R is a fully differential, low voltage

1.2V/1.8V/2.5V CML 2:1 MUX with input equalization.

The SY56017R can process clock signals as fast as 4.5

GHz or data patterns up to 6.4Gbps.

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

termination architecture that interfaces to CML differential

signals, without any level-shifting or termination resistor

networks in the signal path. The differential input can also

accept AC-coupled LVPECL and LVDS signals. Input

before the 9”, 18” or 27” FR4 transmission line. For AC-

coupled input interface applications, an internal voltage

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

less than 80ps.

The SY56017R operates from a 2.5V ±5% core supply

and a 1.2V, 1.8V or 2.5V ±5% output supply and is

guaranteed over the full industrial temperature range

(–40°C to +85°C). The SY56017R is part of Micrel’s high-

speed, Precision Edge

Data sheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

Functional Block Diagram

Precision Edge

®

Features

• 1.2V/1.8V/2.5V CML 2:1 MUX

• Equalizes 9, 18, 27 inches of FR4

• Guaranteed AC performance over temperature and

voltage:

– DC-to > 6.4Gbps Data throughput

– DC-to > 4.5GHz Clock throughput

– <280 ps propagation delay (IN-to-Q)

– <20ps input skew

– <80ps rise/fall times

• Ultra-low jitter design

• High-speed CML outputs

• 2.5V ±5% V

operation

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

• Available in 16-pin (3mm x 3mm) QFN package

Applications

• Data Distribution:

• SONET clock and data distribution

• Fiber Channel clock and data distribution

• Gigabit Ethernet clock and data distribution

Markets

• Storage

• ATE

• Test and measurement

• Enterprise networking equipment

• High-end servers

• Metro area network equipment