參數(shù)資料
型號： LMK04002BEVAL
廠商： National Semiconductor
文件頁數(shù)： 51/65頁
文件大?。?/td> 0K
描述： BOARD EVAL PRECISION CLOCK PLL
標(biāo)準(zhǔn)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)
0.1 PF
LMK040XX
Input
1
0
:
100: Trace
(Differential)
Differential
Sinewave Clock
Source
CLKinX
CLKinX*
SNOSAZ8J – SEPTEMBER 2008 – REVISED SEPTEMBER 2011
DRIVING CLKin AND OSCin INPUTS
Driving CLKin Pins with a Differential Source
Both CLKin ports can be driven by differential signals. It is recommended that the input mode be set to bipolar
(CLKinX_TYPE = 0) when using differential reference clocks. The LMK04000 family internally biases the input
pins so the differential interface should be AC coupled. The recommended circuits for driving the CLKin pins with
either LVDS or LVPECL are shown in Figure 27 and Figure 28.
Figure 27. CLKinX/X* Termination for an LVDS Reference Clock Source
Figure 28. CLKinX/X* Termination for an LVPECL Reference Clock Source
Finally, a reference clock source that produces a differential sinewave output can drive the CLKin pins using the
following circuit. Note: the signal level must conform to the requirements for the CLKin pins listed in the Electrical
Figure 29. CLKinX/X* Termination for a Differential Sinewave Reference Clock Source
Driving CLKin Pins with a Single-Ended Source
The CLKin pins of the LMK04000 family can be driven using a single-ended reference clock source, for example,
either a sinewave source or an LVCMOS/LVTTL source. Either AC coupling or DC coupling may be used. In the
case of the sinewave source that is expecting a 50
Ω load, it is recommended that AC coupling be used as
shown in the circuit below with a 50
Ω termination..
NOTE
The signal level must conform to the requirements for the CLKin pins listed in the
Electrical Characteristics table. CLKinX_TYPE in Register 11 is recommended to be set to
bipolar mode (CLKinX_TYPE = 0).
Copyright 2008–2011, Texas Instruments Incorporated
55
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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(biāo)準(zhǔn)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
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