Microchip SY58022U Handleiding

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DESCRIPTION

■Precision, fully differential 1:4 fanout buffer family

•SY58020U—6GHz any diff. input-to-CML

outputs (4)

•SY58021U—4GHz any diff. input-to-800mV

LVPECL outputs (4)

•SY58022U—5.5GHz any diff. input-to-400mV

LVPECL outputs (4)

■Low jitter performance:

•< 10psPP total jitter (clock)

•< 1psRMS random jitter (data)

•< 10psPP deterministic jitter (data)

■Accepts an input signal as low as 100mV

■Unique input termination and VT pin accepts

DC- and AC-coupled differential inputs:LVPECL,

LVDS, and CML

■Power supply 2.5V ±5% and 3.3V ±10%

■Industrial –40°C to +85C temperature range°

■Available in 16-pin (3mm ××××

× 3mm) MLF® package

FEATURES

1:4 LVPECL/CML FANOUT

BUFFER WITH

INTERNAL TERMINATION

Precision Edge®

SY58020/21/22U

EVALUATION BOARD

Rev.: DAmendment: /0

Issue Date:March 2007

The SY58020U, SY58021U, and SY58022U are

2.5V/3.3V precision, high-speed, fully differential 1:4 fanout

buffers with CML, LVPECL, and 400mV LVPECL outputs.

The SY58020U and SY58022U can process clock signals

as fast as 6GHz and 5.5GHz respectively, whereas, the

SY58021U (800mV LVPECL) can process clock signals as

fast as 4GHz.

The 1:4 fanout buffers include Micrel’s unique, 3-pin input

termination architecture that allows the devices to directly

interface to LVPECL, CML, and LVDS differential signals

(AC-coupled or DC-coupled) without any level-shifting or

termination resistor network in the signal path.

This documentation provides design and implementation

information, and a detailed description of the SY58020U,

SY58021U, and SY58022U evaluation boards. The

evaluation boards are intended to provide a convenient test

and evaluation platform.

All data sheets and support documentation can be found

on Micrel’s web site at: www.micrel.com.

■All SONET and all 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

APPLICATIONS

Precision Edge is a registered trademark of Micrel, Inc.

MLF and

Micro

LeadFrame are trademarks of Amkor Technology, Inc.

Product specificaties