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參數(shù)資料
| 型號(hào)： | SM840002KA |
| 廠商： | MICREL INC |
| 元件分類(lèi)： | 時(shí)鐘產(chǎn)生/分配 |
| 英文描述： | 156.25 MHz, OTHER CLOCK GENERATOR, PDSO16 |
| 封裝： | GREEN, TSSOP-16 |
| 文件頁(yè)數(shù)： | 1/9頁(yè) |
| 文件大?。?/td> | 360K |
| 代理商： | SM840002KA |
SM840002
ClockWorks
Dual 10-Gigabit/Gigabit
Ethernet 62.5MHz, 125MHz, or 156.25MHz,
Ultra-Low Jitter LVCMOS Clock Frequency
Synthesizer
ClockWorks is a trademark of Micrel, Inc.
RotaryWave is a registered trademark of Multigig, Inc.
FemtoClocks is a registered trademark of IDT, 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
November 2010
M9999-110810-A
hbwhelp@micrel.com or (408) 955-1690
General Description
The SM840002 is a dual 10-Gigabit Ethernet and Gigabit
Ethernet, 62.5MHz, 125MHz, or 156.25MHz LVCMOS
clock frequency synthesizer and a member of the
ClockWorks
family of devices from Micrel. It provides a
low-noise timing solution for high-speed, high-accuracy
synthesis of clock signals. It includes a patented
RotaryWave
architecture that provides a very stable clock
with very-low noise.
Power supplies of either 2.5V or 3.3V are supported, with
superior jitter and phase-noise performance. The device
synthesizes a 62.5MHz, 125MHz, or 156.25MHz, low-
noise LVCMOS output pair for Ethernet applications. The
crystal reference frequency is 25MHz.
The SM840002 is an excellent replacement for IDT
FemtoClocks
, with improved waveform integrity, and jitter.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
Generates two LVCMOS outputs
Operating supply modes:
Core/Output
3.3V/3.3V, 2.5V/2.5V
Typical phase jitter @156.25MHz~64 fs
(1.875MHz
20MHz)
Crystal frequency: 25MHz
62.5MHz, 125MHz, or 156.25MHz output frequency
Output Skew: 12ps (maximum)
Phase Noise @ 156.25MHz:
1KHz:
126dBc/Hz
10KHz:
130dBc/Hz
100KHz:
126dBc/Hz
1MHz:
139dBc/Hz
10MHz:
165dBc/Hz
20MHz:
166/dBc/Hz
Temperature range: –40°C to +75°C
Green-, RoHS-, and PFOS-compliant
Available in 16-pin TSSOP
Applications
Gigabit Ethernet
10-Gigabit Ethernet
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| SM840051KA | 162.4 MHz, OTHER CLOCK GENERATOR, PDSO8 |
| SM843251-156KATR | 156.25 MHz, OTHER CLOCK GENERATOR, PDSO8 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SM840002KA TR | 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 Low Noise 125/156.25MHz GbE/10GbE 2 LVCMOS Output Clk Syn RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
| SM840002KATR | 制造商:MICREL 制造商全稱(chēng):Micrel Semiconductor 功能描述:ClockWorks? Dual 10-Gigabit/Gigabit Ethernet 62.5MHz, 125MHz, or 156.25MHz |
| SM840002KA-TR | 功能描述:IC CLK SYNTHESIZER LN 16-TSSOP 制造商:microchip technology 系列:ClockWorks??，RotaryWave?? 包裝:剪切帶（CT） 零件狀態(tài):停產(chǎn) PLL:是 主要用途:以太網(wǎng) 輸入:晶體 輸出:LVCMOS 電路數(shù):1 比率 - 輸入:輸出:1:2 差分 - 輸入:輸出:無(wú)/無(wú) 頻率 - 最大值:156.25MHz 電壓 - 電源:2.375 V ~ 3.465 V 工作溫度:-40°C ~ 75°C 安裝類(lèi)型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商器件封裝:16-TSSOP 標(biāo)準(zhǔn)包裝:1 |
| SM840004-11 | 制造商:MICREL 制造商全稱(chēng):Micrel Semiconductor 功能描述:62.5/125MHz Gigabit Ethernet, 4 Output, Ultra-Low Jitter Clock Synthesizer |
| SM840004-11KA | 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 62.5/125MHz Gigabit Ethernet, 4 Output, Ultra-Low Jitter Clock Synthesizer RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
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