Datasheet > SM802204UMG-TR

SM802204UMG-TR

更新时间： 2024-11-22 06:21:39

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
18页	1147K
描述
OTHER CLOCK GENERATOR

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SM802204UMG-TR 数据手册

SM802XXX

Flexible Ultra-Low Jitter Clock Synthesizer

Clockworks™ FLEX

General Description

Features

The SM802xxx series is a member of the ClockWorks™

family of devices from Micrel and provide an extremely

low-noise timing solution for applications such as (1-100)

Gigabit Ethernet, SONET, Wireless base station, Satellite

communication, Fibre Channel, SAS/SATA and PCI-e. It is

based upon a unique PLL architecture that provides less

than 250fs phase jitter.

• 115fs at 156.25MHz (1.875MHz to 20MHz)

• 245fs at 156.25MHz (12kHz to 20MHz)

• On chip power supply regulation for excellent board

level power supply noise immunity

• Generates up to 8 combinations of differential or 16

single-ended clock outputs.

− LVPECL, LVDS, HCSL, LVCMOS (SE or Diff)

• Selectable input:

The devices operate from a 2.5V or 3.3V power supply

and synthesize up to 8 different combinations (LVPECL,

LVDS, HCSL) of differential or 16 single ended output

clocks. The devices accept an external reference clock or

crystal input.

− Crystal: 11MHz to 30MHz

− Reference input: 11MHz to 80MHz

• No external crystal oscillator capacitors required

• 2.5V or 3.3V operating power supply

• Available in Industrial Temperature range

The SM802xxx series is fully programmable and a web

tool is available to configure a part for samples at:

http://clockworks.micrel.com/micrel/

• Available in Green, RoHS, and PFOS compliant QFN

Datasheets and support documentation are available on

Micrel’s web site at: www.micrel.com.

packages:

− 44-pin, 7mm × 7mm

− 32-pin, 5mm × 5mm

− 24-pin, 4mm × 4mm

− 16-pin, 3mm × 3.5mm

Block Diagram

Applications

• 1/10/40/100 Gigabit Ethernet – (GbE)

• SONET/SDH

• PCI-Express

• CPRI/OBSAI – Wireless base station

• Fibre Channel

• SAS/SATA

• DIMM

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

Revision 1.0

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

June 6, 2013

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