参数资料
| 型号： | SM840002KA TR |
| 厂商： | Micrel Inc |
| 文件页数： | 1/9页 |
| 文件大小： | 0K |
| 描述： | IC CLK SYNTHESIZER LN 16-TSSOP |
| 产品培训模块： | High Bandwidth Product Overview |
| 标准包装： | 1 |
| 系列： | ClockWorks™, RotaryWave™ |
| 类型： | 时钟/频率合成器，多路复用器 |
| PLL： | 是 |
| 主要目的： | 以太网 |
| 输入： | 晶体 |
| 输出： | LVCMOS |
| 电路数： | 1 |
| 比率 - 输入:输出： | 1:2 |
| 差分 - 输入:输出： | 无/无 |
| 频率 - 最大： | 156.25MHz |
| 电源电压： | 2.375 V ~ 3.465 V |
| 工作温度： | -40°C ~ 75°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 16-TSSOP |
| 包装： | 标准包装 |
| 其它名称： | 576-3770-6 |
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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相关代理商/技术参数 |
参数描述 |
|---|---|
| SM840004-11 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:62.5/125MHz Gigabit Ethernet, 4 Output, Ultra-Low Jitter Clock Synthesizer |
| SM840004-11KA | 功能描述:时钟合成器/抖动清除器 62.5/125MHz Gigabit Ethernet, 4 Output, Ultra-Low Jitter Clock Synthesizer RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel |
| SM840004-11KA TR | 功能描述:时钟合成器/抖动清除器 62.5/125MHz Gigabit Ethernet, 4 Output, Ultra-Low Jitter Clock Synthesizer RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel |
| SM840004-11KATR | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:62.5/125MHz Gigabit Ethernet, 4 Output, Ultra-Low Jitter Clock Synthesizer |
| SM840021 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:125MHz Ultra-Low Jitter Clock Synthesizer |
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