SY89536LHC datasheet(1/16 Pages) MICREL

Part #	SY89536LHC

Description	3.3V, PRECISION, 33MHz to 500MHz PROGRAMMABLE LVPECL AND HSTL BUS CLOCK SYNTHESIZER

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Manufacturer	MICREL [Micrel Semiconductor]

Direct Link	http://www.micrel.com

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DESCRIPTION

■ Integrated synthesizer plus fanout buffers, clock

dividers, and translator in a single 64-pin package

■ Accepts any reference input between 14MHz to

160MHz (single-ended or differential)

■ 33MHz to 500MHz output frequency range

■ LVPECL and HSTL outputs

■ 3.3V ±10% power supply

■ Low jitter: <50ps cycle-to-cycle

■ Low pin-to-pin skew: <50ps

■ TTL/CMOS compatible control logic

■ 3 independently programmable output frequency

banks:

• 9 differential output pairs @BankB (HSTL)

• 2 differential output pairs @BankA (LVPECL)

• 2 differential output pairs @BankC (LVPECL)

■ Available in 64-pin EPAD-TQFP

FEATURES

3.3V, PRECISION, 33MHz to 500MHz

PROGRAMMABLE LVPECL AND HSTL

BUS CLOCK SYNTHESIZER

Precision Edge™

SY89536L

APPLICATIONS

■ Servers

■ Workstations

■ Parallel processor-based systems

■ Other high-performance computing

■ Communications

1

Rev.: A

Amendment: /0

Issue Date:

June 2003

The SY89536L programmable clock synthesizer is part

of a 3.3V, high-frequency, precision PLL-based clock

synthesizer family optimized for multi-frequency, large clock-

tree applications. This device integrates the following blocks

into a single monolithic IC:

• PLL (Phase-Lock-Loop)-based synthesizer

• Fanout buffer

• Clock generator (divider)

• Logic translation (LVPECL, HSTL)

The SY89536L includes a flexible input design that

accepts any reference input; single-ended LVTTL/CMOS,

SSTL and differential LVPECL, LVDS, HSTL, and CML.

This level of integration minimizes the additive jitter and

part-to-part skew associated with the discrete alternative,

resulting in superior system-level timing as well as reduced

board space and power. For applications that must interface

to a crystal oscillator, see the SY89531L.

Data sheets and support documentation can be found on

Micrel’s web site at www.micrel.com.

PRODUCT SELECTION GUIDE

Input

Output

Device

Crystal

Reference

BankA

BankB

BankC

SY89531L*

X

LVPECL

HSTL

LVPECL

SY89532L*

X

LVPECL LVPECL LVPECL

SY89533L*

X

LVPECL

LVDS

LVPECL

SY89534L*

X

LVPECL LVPECL LVPECL

SY89535L*

X

LVPECL

LVDS

LVPECL

SY89536L

X

LVPECL

HSTL

LVPECL

*Refer to individual data sheet for details.

Precision Edge is a trademark of Micrel, Inc.

Precision Edge™

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