参数资料
| 型号： | SM843256KA TR |
| 厂商： | Micrel Inc |
| 文件页数： | 1/8页 |
| 文件大小： | 0K |
| 描述： | IC SYNTHESIZER LVPECL 24TSSOP |
| 产品培训模块： | High Bandwidth Product Overview |
| 标准包装： | 2,500 |
| 系列： | RotaryWave™ |
| 类型： | 时钟/频率合成器，扇出配送，多路复用器 |
| PLL： | 带旁路 |
| 输入： | 晶体 |
| 输出： | LVPECL |
| 电路数： | 1 |
| 比率 - 输入:输出： | 1:6 |
| 差分 - 输入:输出： | 无/是 |
| 频率 - 最大： | 625MHz |
| 除法器/乘法器： | 是/无 |
| 电源电压： | 2.375 V ~ 3.465 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-TSSOP（0.173"，4.40mm）裸露焊盘 |
| 供应商设备封装： | 24-TSSOP 裸露焊盘 |
| 包装： | 带卷 (TR) |
SM843256
10 Gigabit Ethernet and SONET, 6 output,
Ultra-Low Jitter LVPECL Frequency
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
M9999-072110-B
General Description
The SM843256 provides a low-noise timing solution for
high speed, high accuracy synthesis of clock signals.
Common applications include SONET, Gigabit Ethernet,
10 Gigabit Ethernet, and similar networking standards. It
includes a unique power reduction methodology, along
with a patented RotaryWave
TM architecture that provides a
very stable clock with very low noise.
Power supplies of either 3.3V or 2.5V are supported, with
superior jitter and phase noise performance. The device
synthesizes
different
low
noise
LVPECL
output
frequencies such as 125MHz, 156.25MHz, 312.5MHz, and
625MHz for Ethernet applications; 77.76MHz, 155.52MHz,
311.04MHz, and 622.08MHz for SONET applications. The
crystal reference frequencies used include 25MHz and
19.44Mhz
for
Ethernet
and
SONET
applications,
respectively.
The SM843256 is an excellent replacement for IDT Femto-
clocks, with improved accuracy, power consumption,
waveform integrity, and jitter.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
Generates six LVPECL outputs
2.5V or 3.3V operating range
Typical phase jitter @ 156.25MHz
(1.875MHz to 20MHz): 80fs (typical) @ 3.3V
75MHz to 625MHz output frequencies
Industrial temperature range
Green, RoHS, and PFOS compliant
Available in 24-pin TSSOP EPAD
Operating supply modes:
Core/Output
3.3V/3.3V, 3.3V/2.5V, 2.5V/2.5V
Applications
SONET
Gigabit Ethernet
10-Gigabit Ethernet
Infiniband
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Block Diagram
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SM844256 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:10 Gigabit Ethernet and SONET, 6 Output, Ultra-Low Jitter LVDS Frequency Synthesizer |
| SM844256KA | 功能描述:时钟合成器/抖动清除器 Low Noise Ethernet/SONET 6 Output LVDS Clk Syn 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 |
| SM844256KA TR | 功能描述:时钟合成器/抖动清除器 Low Noise Ethernet/SONET 6 Output LVDS Clk Syn 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 |
| SM845C166ZAA | 制造商:AVX Corporation 功能描述:- Bulk |
| SM847C205ZAA | 制造商:AVX Corporation 功能描述:- Bulk |
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