- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄202078 > QT3-AC-D-1-M-FREQ1 (Q-TECH CORP) CRYSTAL OSCILLATOR, CLOCK, 0.0007324 MHz - 12 MHz, ACMOS OUTPUT PDF資料下載
參數(shù)資料
| 型號(hào)： | QT3-AC-D-1-M-FREQ1 |
| 廠商： | Q-TECH CORP |
| 元件分類： | XO, clock |
| 英文描述： | CRYSTAL OSCILLATOR, CLOCK, 0.0007324 MHz - 12 MHz, ACMOS OUTPUT |
| 封裝： | ROHS COMPLIANT, HERMETIC SEALED, TO PACKAGE-8 |
| 文件頁數(shù)： | 6/6頁 |
| 文件大小： | 302K |
| 代理商： | QT3-AC-D-1-M-FREQ1 |
66
Q-TECH Corporation - 10150 W. Jefferson Boulevard, Culver City 90232 - Tel: 310-836-7900 - Fax: 310-836-2157 - www.q-tech.com
Q-TECH
CORPORATION
TRANSISTOR OUTLINE PACKAGES
TO-5 and TO-8 CRYSTAL CLOCK OSCILLATORS
1.8 to 15Vdc - 0.045Hz to 125MHz
TransistorOutlinePackages (RevisionA,May2008)(ECO#9304)
Phasenoiseismeasuredinthefrequencydomain,andisexpressedasaratioofsignalpowertonoisepowermeasuredina1Hz
bandwidthatanoffsetfrequencyfromthecarrier,e.g.10Hz,100Hz,1kHz,10kHz,100kHz,etc. Phasenoisemeasurementismade
withanAgilentE5052ASignalSourceAnalyzer(SSA)withbuilt-inoutstandinglow-noiseDCpowersupplysource. TheDCsource
isfloatedfromthegroundandisolatedfromexternalnoisetoensureaccuracyandrepeatability.
Inordertodeterminethetotalnoisepoweroveracertainfrequencyrange(bandwidth),thetimedomainmustbeanalyzedinthe
frequencydomain,andthenreconstructedinthetimedomainintoanrmsvaluewiththeunwantedfrequenciesexcluded. Thismaybe
donebyconvertingL(f)backtoSφ(f)overthebandwidthofinterest,integratingandperformingsomecalculations.
ThevalueofRMSjitteroverthebandwidthofinterest,e.g.10kHzto20MHz,10Hzto20MHz,represents1standarddeviationof
phasejittercontributedbythenoiseinthatdefinedbandwidth.
FigurebelowshowsatypicalPhaseNoise/PhasejitterofaQT1ACD10M,5.0Vdc,40MHzclockatoffsetfrequencies10Hzto5MHz,
andphasejitterintegratedoverthebandwidthof12kHzto1MHz.
PhaseNoiseandPhaseJitterIntegration
PeriodJitter
As data rates increase, effects of jitter become critical with
itsbudgetstighter. Jitteristhedeviationofatimingeventof
a signal from its ideal position. Jitter is complex and is
composed of both random and deterministic jitter
components. Randomjitter(RJ)istheoreticallyunbounded
and Gaussian in distribution. Deterministic jitter (DJ) is
bounded and does not follow any predictable distribution.
DJ is also referred to as systematic jitter. A technique to
measureperiodjitter(RMS)onestandarddeviation(1σ)and
peak-to-peakjitterintimedomainistouseahighsampling
rate(>8Gsamples/s)digitizingoscilloscope. Figureshows
an example of peak-to-peak jitter and RMS jitter (1σ) of a
QT1ACD-40MHz,at5.0Vdc.
RMSjitter(1σ):4.89ps
Peak-to-peakjitter:44.4ps
Symbol
Definition
∫L(f)
Integratedsinglesidebandphasenoise(dBc)
Sφ(f)=(180/Π)x
√2∫L(f)df
Spectraldensityofphasemodulation,alsoknownasRMSphaseerror(indegrees
RMSjitter=Sφ(f)/(fosc.360°)
Jitter(inseconds)duetophasenoise. NoteSφ(f)indegrees.
QT1ACD10M,5.0Vdc-40MHz
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| QT62-T-1-FREQ1 | CRYSTAL OSCILLATOR, CLOCK, 0.0007324 MHz - 12 MHz, TTL OUTPUT |
| QT62-T-3-FREQ2 | CRYSTAL OSCILLATOR, CLOCK, 12 MHz - 20 MHz, TTL OUTPUT |
| QT62-T-6-60.000MHZ | CRYSTAL OSCILLATOR, CLOCK, 60 MHz, TTL OUTPUT |
| QT62-T-D-4-60.000MHZ | CRYSTAL OSCILLATOR, CLOCK, 60 MHz, TTL OUTPUT |
| QT70-HC-1-85.000MHZ | CRYSTAL OSCILLATOR, CLOCK, 85 MHz, HCMOS OUTPUT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| QT3F | 制造商:Switchcraft 功能描述:QG TWIST INSERT 3 P |
| QT3FB | 制造商:Switchcraft 功能描述:QG TWIST INSERT 3 PI |
| QT3FBAU | 制造商:Switchcraft 功能描述:QG TWIST INSERT BLA |
| QT3FZ | 功能描述:XLR 連接器 AAA 3 PIN INSERT Z RoHS:否 制造商:Neutrik 標(biāo)準(zhǔn):Standard XLR 產(chǎn)品類型:Connectors 型式:Female 位置/觸點(diǎn)數(shù)量:3 端接類型:Solder 安裝風(fēng)格:Cable 方向:Vertical |
| QT3M | 制造商:Switchcraft 功能描述:QG TWIST INSERT 3 P |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。