服务器上配置好了ntpd,在启动前也手动进行过同步,但是过段时间ntpq查询发现服务器即便能选出同步服务器,但是系统的时间偏差越来越大。 服务器上实际有2个时钟,一个是主板电池驱动的硬件时间(RTC或者CMOS时间),另外就是系统时间。服务器启动时会从RTC里读取一次时间,之后便靠中断来计时。可以设置ntpd同步后讲时间写...
JITTER: 10 ps PEAK TO PEAK MAXIMUM CURRENT: 130 mA MAXIMUM LOAD: 50 OHMS CONNECTED TO +3.0 VDC "1" LEVEL: +3.975 VDC MINIMUM "0" LEVEL: +3.38 VDC MAXIMUM PECL 8 100.00 MHz TO 800.00 MHzP: PHASE LOCKED LOOP (PLL)SYMMETRY: 40/60 TO 60/40% AT +3.65 VDC LEVEL ...
• Lowest peak-to-peak jitter • Low supply current • Alternative to long lead-time XO's Delivery Time is 1-5 days ELECTRICAL SPECIFICATIONS: 3.3V, 2.5V OPERATION Characteristics Frequency Range3.3V 2.5V Unit MHz MHz °C °C
TI/德州仪器 时钟发生器/PLL频率合成器 CDCE813QPWRQ1 时钟合成器/抖动清除器 Programmable 1-PLL Clock Synthesizer and Jitter Clean ¥7.18 本店由淘IC运营支持 开店入驻芯品入驻一键找货 获取底价 商品描述 PDF资料 联系我们 品牌 意法 批号 刚到现货 封装 SOP10 数量 3000 QQ 2853957767 制造商 STMicr...
(frequencyresolutionduetochannel spacing) •Verylowphasenoise(jitter) •Low“spurs”invicinity(below60dBc) J.Dąbrowski,Radioelectronics 4 •increasespectralemissioninTx(outputspectrum mustmeetmaskrequirements) •resultinreciprocalmixingordirectchannel corruptioninRx(lowersensitivity) Up-anddown-conversion...
The performance of the traced clock source degrades or the jitter occurs. Procedure If the clock source is switched, this is a normal situation. If the clock source of the upstream device is switched, this is a normal situation. Check whether the clock configurations of the upstream device an...
• LVDS output on pin 4, complement on Pin 5 • L ow Jitter - Wavecrest jitter characterization available • H igh Reliability - NEL HALT/HASS qualified for crystal oscillator start-up conditions • Overtone technology • High Q Crystal actively tuned oscillator circuit • Power ...
Freq (min): 2 Gbps Freq (max): 32 Gbps Power: 10500 mW Package: Board Price: Request ASNTPRBS20C 2^7-1 / 2^15-1 PRBS Generator w/ Jitter Insertion, Sync Output, & Amplitude Control w/ USB Control Interface Freq (min): 20 Mbps ...
文件页数/大小:1 页 / 258 K 品牌: FOX [ FOX ELECTRONICS ] 2.5V LVE-PECL VCXO MODEL: RFV250 FEATURES Applications Include •ATM •WAN • 2.5VOperation • SONET • SDH • HighPerformance • ComplementaryOutput PRELIMINARY Discontinued ...
jitter and high frequency oscillator with ꢀrecise rise and fall times demanded in networking aꢀꢀlications. The tri-state function on the NTH enaꢁles the outꢀut to go high imꢀedance. Device is ꢀack- aged in a 14 or an 8-ꢀin DIP comꢀatiꢁle resistanc...