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參數(shù)資料
| 型號： | SM840051KA |
| 廠商： | MICREL INC |
| 元件分類： | 時鐘產(chǎn)生/分配 |
| 英文描述： | 162.4 MHz, OTHER CLOCK GENERATOR, PDSO8 |
| 封裝： | GREEN, TSSOP-8 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大?。?/td> | 291K |
| 代理商： | SM840051KA |
SM840051
10 Gigabit Ethernet Ultra-Low Jitter Clock
Synthesizer
RotaryWave is a 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
May 2010
M9999-050710-C
hbwhelp@micrel.com or (408) 955-1690
General Description
The SM840051 clock synthesizer was designed for
Ethernet standards. The SM840051 is optimized for 77.76,
78.125, 80.56, 155.52, 156.25, and 161.13MHz, using a
crystal at 1/8th the output frequency. The SM840051
includes a unique power reduction methodology, along
with a patented RotaryWave architecture, that provides
a stable clock with very low noise for optimized
performance. This yields an overall improved Bit Error
Rate (BER) and improved waveform integrity.
Power supplies of either 3.3V or 2.5V are supported, with
superior jitter and phase noise performance. An FSEL pin
supports 4x or 8x multiplication of the crystal frequency.
The SM840051 provides ultra-low jitter, and consumes low
power.
Datasheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
Generates a single LVCMOS/LVTTL output
Output Frequencies: 77.76, 78.125, 80.56, 155.52,
156.25, and 161.13MHz
RMS Phase Jitter at 156.25MHz( 1.875MHz-20MHz):
58fs (typical)
Integrated loop filter components
Operates with either a 3.3V or 2.5V supply
Power consumption is <77mA @ 3.3 V
Fundamental parallel resonant crystal
Crystal Frequencies: 20.141601MHz,19.53125MHz, and
19.44MHz
Industrial temperature range: –40°C to +75°C
Available in 8-pin TSSOP package
Applications
10 Gigabit Ethernet
SONET/SDH
____________________________________________________________________________
Block Diagram
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PDF描述 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SM840051KA TR | 功能描述:時鐘合成器/抖動清除器 77, 78, 155, 156 MHz Ultra Low 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 |
| SM840051KATR | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:10 Gigabit Ethernet Ultra-Low Jitter Clock Synthesizer |
| SM840B | 制造商:SECOS 制造商全稱:SeCoS Halbleitertechnologie GmbH 功能描述:8.0 AMP Surface Mount Schottky Barrier Rectifiers |
| SM840C | 制造商:SECOS 制造商全稱:SeCoS Halbleitertechnologie GmbH 功能描述:8.0 AMP Surface Mount Schottky Barrier Rectifiers |
| SM840D | 制造商:SECOS 制造商全稱:SeCoS Halbleitertechnologie GmbH 功能描述:8.0AMP Surface Mount S chottky Barrier Rec tifiers |
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