參數(shù)資料
型號： LMK04002BEVAL
廠商： National Semiconductor
文件頁數(shù)： 50/65頁
文件大?。?/td> 0K
描述： BOARD EVAL PRECISION CLOCK PLL
標準包裝： 1
系列： PowerWise®
主要目的： 計時，時鐘調(diào)節(jié)器
嵌入式： 否
已用 IC / 零件： LMK04002
主要屬性： 122.88 MHz VCXO
次要屬性： 集成式 PLL 和 VCO
已供物品： 板，線纜
產(chǎn)品目錄頁面： 1275 (CN2011-ZH PDF)
CLKoutX
CLKoutX*
1
2
0
:
1
2
0
:
0.1 PF
50: Trace
5
0
:
Load
5
0
:
LVPECL
Driver
CLKoutX
CLKoutX*
:
50: Trace
1
2
0:
Load
Vcc
8
2:
1
2
0:
Vcc
LVPECL
Driver
8
2
CLKoutX
CLKoutX*
50:
50: Trace
5
0:
Load
Vcc - 2V
LVPECL
Driver
SNOSAZ8J – SEPTEMBER 2008 – REVISED SEPTEMBER 2011
Termination for Single-Ended Operation
A balun can be used with either LVDS or LVPECL drivers to convert the balanced, differential signal into an
unbalanced, single-ended signal.
It is possible to use an LVPECL driver as one or two separate 800 mVpp signals. When using only one LVPECL
driver of a CLKoutX/CLKoutX* pair, be sure to properly terminated the unused driver. When DC coupling one of
the LMK04000 family clock LVPECL drivers, the termination should be 50
Ω to VCC - 2 V as shown in Figure 24.
The Thevenin equivalent circuit is also a valid termination as shown in Figure 25 for Vcc = 3.3 V.
Figure 24. Single-Ended LVPECL Operation, DC Coupling
Figure 25. Single-Ended LVPECL Operation, DC Coupling, Thevenin Equivalent
When AC coupling an LVPECL driver use a 120
Ω emitter resistor to provide a DC path to ground and ensure a
50
Ω termination with the proper DC bias level for the receiver. The typical DC bias voltage for LVPECL
receivers is 2 V (See Driving CLKin Pins with a Single-Ended Source). If the companion driver is not used it
should be terminated with either a proper AC or DC termination. This latter example of AC coupling a single-
ended LVPECL signal can be used to measure single-ended LVPECL performance using a spectrum analyzer or
phase noise analyzer. When using most RF test equipment no DC bias point (0 VDC) is required for safe and
proper operation. The internal 50
Ω termination of the test equipment correctly terminates the LVPECL driver
being measured as shown in Figure 26.
Figure 26. Single-Ended LVPECL Operation, AC Coupling
54
Copyright 2008–2011, Texas Instruments Incorporated
相關(guān)PDF資料
PDF描述
0210491025 CABLE JUMPER 1.25MM .229M 31POS
MAX6063BEUR-T IC VREF SERIES PREC 3V SOT-23-3
V375B5E150BG2 CONVERTER MOD DC/DC 5V 150W
GEM28DRMT-S288 CONN EDGECARD 56POS .156 EXTEND
234A061-3/42-0 BOOT MOLDED
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LMK04002BEVAL/NOPB 功能描述:BOARD EVAL FOR LMK04002B RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:PowerWise® 標準包裝:1 系列:- 主要目的:數(shù)字電位器 嵌入式:- 已用 IC / 零件:AD5258 主要屬性:- 次要屬性:- 已供物品:板 相關(guān)產(chǎn)品:AD5258BRMZ1-ND - IC POT DGTL I2C1K 64P 10MSOPAD5258BRMZ10-ND - IC POT DGTL I2C 10K 64P 10MSOPAD5258BRMZ100-ND - IC POT DGTL I2C 100K 64P 10MSOPAD5258BRMZ50-ND - IC POT DGTL I2C 50K 64P 10MSOPAD5258BRMZ1-R7-ND - IC POT DGTL I2C 1K 64P 10MSOPAD5258BRMZ10-R7-ND - IC POT DGTL I2C 10K 64P 10MSOPAD5258BRMZ50-R7-ND - IC POT DGTL I2C 50K 64P 10MSOPAD5258BRMZ100-R7-ND - IC POT DGTL I2C 100K 64P 10MSOP
LMK04002BISQ 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Low-Noise Clock Jitter Cleaner with Cascaded PLLs
LMK04002BISQ/NOPB 功能描述:時鐘合成器/抖動清除器 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
LMK04002BISQE 制造商:Texas Instruments 功能描述:Clock Conditioner 48-Pin LLP EP T/R
LMK04002BISQE/NOPB 功能描述:時鐘合成器/抖動清除器 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
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*