參數(shù)資料
型號(hào): SM802121UMG TR
廠商: Micrel Inc
文件頁(yè)數(shù): 1/10頁(yè)
文件大?。?/td> 0K
描述: IC FREQ SYNTH 156.25MHZ 24QFN
標(biāo)準(zhǔn)包裝: 1,000
系列: ClockWorks™, RotaryWave™
類型: *
PLL:
輸入: CMOS,晶體
輸出: LVPECL
電路數(shù): 1
比率 - 輸入:輸出: 2:1
差分 - 輸入:輸出: 無(wú)/是
頻率 - 最大: 156.25MHz
除法器/乘法器: 是/無(wú)
電源電壓: 2.375 V ~ 3.465 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 24-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 24-QFN(4x4)
包裝: 帶卷 (TR)
SM802121
ClockWorks
10GbE
(156.25MHz), Ultra-Low Jitter, LVPECL
Frequency Synthesizer
ClockWorks is a trademark of Micrel, Inc
RotaryWave is a registered trademark of Multigig, 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
January 2012
M9999-011212-A
hbwhelp@micrel.com or (408) 955-1690
General Description
The SM802121 is a member of the ClockWorks
family of
devices from Micrel and provides an extremely low-noise
timing solution for 10GbE Ethernet clock signals. It is
based upon a unique patented RotaryWave
architecture
that provides very-low phase noise.
The device operates from a 2.5V or 3.3V power supply
and synthesizes an LVPECL output clock at 156.25MHz.
The SM802121 accepts a 25MHz crystal or LVCMOS
reference clock.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
Generates one LVPECL clock outputs at 156.25MHz
2.5V or 3.3V operating range
Typical phase jitter @ 156.25MHz
(1.875MHz to 20MHz): 110fs
Industrial temperature range
Green, RoHS-, and PFOS- compliant
Available in 24-pin 4mm 4mm QFN package
Applications
10 Gigabit Ethernet
Block Diagram
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