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參數(shù)資料
| 型號(hào)： | SM843256KA TR |
| 廠商： | Micrel Inc |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大小： | 0K |
| 描述： | IC SYNTHESIZER LVPECL 24TSSOP |
| 產(chǎn)品培訓(xùn)模塊： | High Bandwidth Product Overview |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 系列： | RotaryWave™ |
| 類型： | 時(shí)鐘/頻率合成器，扇出配送，多路復(fù)用器 |
| PLL： | 帶旁路 |
| 輸入： | 晶體 |
| 輸出： | LVPECL |
| 電路數(shù)： | 1 |
| 比率 - 輸入:輸出： | 1:6 |
| 差分 - 輸入:輸出： | 無(wú)/是 |
| 頻率 - 最大： | 625MHz |
| 除法器/乘法器： | 是/無(wú) |
| 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： | 24-TSSOP（0.173"，4.40mm）裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 24-TSSOP 裸露焊盤 |
| 包裝： | 帶卷 (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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SM844256 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:10 Gigabit Ethernet and SONET, 6 Output, Ultra-Low Jitter LVDS Frequency Synthesizer |
| SM844256KA | 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 Low Noise Ethernet/SONET 6 Output LVDS Clk Syn 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 |
| SM844256KA TR | 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 Low Noise Ethernet/SONET 6 Output LVDS Clk Syn 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 |
| 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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