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參數(shù)資料
| 型號(hào)： | SM840004-11KA |
| 廠商： | Micrel Inc |
| 文件頁(yè)數(shù)： | 1/10頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC CLK SYNTHESIZER LN 20-TSSOP |
| 產(chǎn)品培訓(xùn)模塊： | High Bandwidth Product Overview |
| 標(biāo)準(zhǔn)包裝： | 74 |
| 系列： | RotaryWave™ |
| 類型： | 時(shí)鐘/頻率合成器 |
| PLL： | 是 |
| 主要目的： | 以太網(wǎng) |
| 輸入： | 晶體 |
| 輸出： | LVCMOS |
| 電路數(shù)： | 1 |
| 比率 - 輸入:輸出： | 1:4 |
| 差分 - 輸入:輸出： | 無(wú)/無(wú) |
| 頻率 - 最大： | 125MHz |
| 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： | 20-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 20-TSSOP |
| 包裝： | 管件 |
| 其它名稱： | 576-3771-5 |
SM840004-11
62.5/125MHz Gigabit Ethernet, 4 Output,
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
July 2010
M9999-070110-A
hbwhelp@micrel.com or (408) 955-1690
General Description
The SM840004-11 clock synthesizer was designed for
Gigabit Ethernet applications. The device design is
optimized for 62.5MHz and 125MHz using a standard
25MHz fundamental parallel resonant crystal, with
unparalleled stability and accuracy over the full operating
range, and provides an easy fit for Jitter and Phase Noise
standards for these high performance interfaces.
The SM840004-11 design 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.
Datasheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
Generates 4 optimized LVCMOS clock outputs
RMS phase jitter @ 125MHz: ~55 fs (typ)
Integrated loop filter components
Operates with either a 3.3V or 2.5V supply
Power consumption 65mA (typ @ 2.5V)
Selectable output frequency: 125MHz or 62.5MHz
Input frequency of 25MHz
Fundamental parallel resonant crystal interface
Pin compatible with the ICS/IDT840004-11
Industrial temperature range: –40°C to +85°C
Green, RoHS-compliant and PFOS-compliant
___________________________________________________________________________________________________________
Block Diagram
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SM840004-11KA TR | 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 |
| SM840004-11KATR | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:62.5/125MHz Gigabit Ethernet, 4 Output, Ultra-Low Jitter Clock Synthesizer |
| SM840021 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:125MHz Ultra-Low Jitter Clock Synthesizer |
| SM840021KA | 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 125MHz 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 |
| SM840021KA TR | 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 125MHz 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 |
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