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SM803058UMY

更新时间： 2024-11-26 09:01:31
品牌 Logo 应用领域
美国微芯 - MICROCHIP /
页数 文件大小 规格书
19页 931K
描述
IC,FREQUENCY SYNTHESIZER,LGA,84PIN,PLASTIC

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SM803058UMY 技术参数

生命周期：Active包装说明：LGA, SLGA84,14X14,20
Reach Compliance Code：compliant风险等级：5.67
JESD-30 代码：S-PBGA-N84端子数量：84
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：LGA
封装等效代码：SLGA84,14X14,20封装形状：SQUARE
封装形式：GRID ARRAY电源：2.5/3.3 V
认证状态：Not Qualified子类别：PLL or Frequency Synthesis Circuits
最大供电电流 (Isup)：280 mA表面贴装：YES
温度等级：INDUSTRIAL端子形式：NO LEAD
端子节距：0.5 mm端子位置：BOTTOM
Base Number Matches：1

SM803058UMY 数据手册

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SM803XXX  
Flexible Ultra-Low Jitter Clock Synthesizer  
Clockworks™ FLEX2  
General Description  
Features  
The SM803xxx is a dual-PLL clock generator that achieves  
ultra-low phase jitter (75fs RMS). With 12 total outputs and  
dividers on each output, this device can generate 12  
different frequencies up to 850MHz, from a low-cost quartz  
crystal or a reference clock input.  
• Generates up to 12 differential or single-ended  
frequencies  
• 75fs phase jitter @ 156.25MHz (1.875MHz to 20MHz)  
• 180fs phase jitter @ 156.25MHz (12kHz to 20MHz)  
• On-chip power supply regulation for excellent power  
Each of 12 outputs can be independently programmed to  
LVPECL, LVDS, HCSL, or LVCMOS logic. For LVCMOS,  
only the true side of the channel is used.  
supply noise immunity  
• Two high-performance PLL synthesizers to generate  
multiple frequencies  
The SM803xxx is packaged in a 48-pin QFN with up to 10  
outputs, or 84-pin QFN with 12 outputs.  
• Independently programmable output logic and  
frequency:  
− Output logic: LVPECL, LVDS, HCSL, LVCMOS  
• Selectable input:  
Datasheets and support documentation are available on  
Micrel’s web site at: www.micrel.com.  
− Crystal: 12MHz to 50MHz  
Block Diagram  
− Reference input: 12MHz to 850MHz  
• SPI programmable (see FLEX SPI documentation)  
• No external crystal oscillator capacitors required  
• 2.5V or 3.3V operating power supply  
• Separate output power supplies:  
− Each bank can be at different power supply voltage  
levels (4 banks of 3 outputs each)  
• Feedback input pins for use as zero delay buffer  
• Industrial temperature range, −40°C to +85°C  
• Green, RoHS, and PFOS compliant QFN packages:  
− 84-pin, 7mm × 7mm (12 Diff. or Single ended outputs)  
− 48-pin 7mm × 7mm (10 Diff. or Single ended outputs)  
Applications  
• 1/10/40/100 Gigabit Ethernet – (GbE)  
• SONET/SDH  
• PCI-Express  
• CPRI/OBSAI – Wireless base station  
• Fibre Channel  
• SAS/SATA  
• DIMM (DDR2/DDR3/AMB)  
Clockworks and Ripple Blocker are trademarks of Micrel, 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  
Revision 1.0  
hbwhelp@micrel.com or (408) 955-1690  
July 26, 2013  
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