Mhz Ethernet
2010
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 CISCO PIX FIREWALL 520 MIDRANGE 350MHZ ETHERNET 10 100MBPS PIX5201KCHRF $371.67 Time Remaining: 29d 19h 25m Buy It Now for only: $371.67 |
 TP Link TG 3269 10 100 1000Mbps 32 bit 33 66MHz PCI Gigabit Ethernet Adaptor $10.98 Time Remaining: 24d 12h 36m Buy It Now for only: $10.98 |
Mhz Ethernet
Specific XpressO Oscillators Optimized for Gigabit Ethernet Configurations
Fox Online, are mmanaging global supplier of XPRESSO, XPRESSO Crystal Oscillator, Oscillator, recently announced a new Oscillator of XpressO oscillators explicitly designed to meet the needs of Gigabit Ethernet (GbE) and 10 GbE applications. Each model in the new Application Specific XpressO line is off-the-shelf, pre-configured to precise application-specific requirements in an industry standard 7 mm x 5 mm package.
The series is the first to combine Fox's patented breakthrough XpressO technology with the specific characteristics required to meet the demanding needs of 3.3-volt (±5% standard) Ethernet-specific applications to ensure the best performance possible without the wait associated with custom products. XpressO technology offers fast delivery of low jitter, small package size and multiple frequency and output options at a low cost. Designed and developed by Fox, XpressO oscillators utilize a family of proprietary application specific integrated circuits (ASICs) with a key focus on noise reduction.
Fox's new Ethernet specific XO oscillators offer a frequency stability of ±50 ppm, with tighter stabilities available upon request and are available in 125.00 MHz, 156.25 MHz and 312.50 MHz models. HCMOS, LVPECL and LVDS outputs are available on the 125.00 MHz and FOX-A-3740
156.25 MHz models while LVPECL and LVDS outputs are available on the 312.50 MHz model. The XpressO oscillators offer a tri-state enable/disable feature, allowing the user to turn the output on and off. Output enable/disable time is less than 100 nS.
Each XpressO crystal oscillator model features an operating temperature range of -40°C to +85°C and a storage temperature range of -55°C to +125°C. At 12 kHz to 20 MHz, typical phase jitter is 0.75 pS RMS for the 125.00 MHz model, 0.77 pS RMS for 156.25 MHz and 0.86 pS RMS for 312.50 MHz. Start up time is 10 mS. The new XpressO oscillators feature gold over nickel termination finish.
Pricing for a 125.00 MHz HCMOS oscillator (FXO-HC735RGB-125) is $0.78 in quantities of 50,000. As with all XpressO products, samples are available overnight, small quantities in 2 to 3 days and up to 20,000 in 1 to 2 weeks ARO.
For more information, please visit http://foxonline.com/xpresso_assp.htm or contact Customer Service, Fox Electronics, 5570 Enterprise Parkway, Fort Myers, Fla. 33905.
Tel: 888-GET-2-FOX; Fax: 239-693-1554; E-mail: http://www.foxonline.com/email.htm; Web: www.foxonline.com.
About the Author
Fox Electronics is a leading global supplier of standard and custom frequency control products, Application Specific XpressO, including the industry's broadest line of crystals, XpressO technology, oscillators, VCXOs, TCXOs, OCXOs and crystal filters.
When making antenna out of wire, does curling it affect the outcome?
When making antenna out of wire, does curling it affect the outcome?
I want to make an antenna out of wire. It's a 433 MHz Antenna used for RF. The wire is made out of components of a cat-5 (Ethernet) cable. Instead of leaving the wire straight out, can I just curl it?
When I mean curl it, I mean make them into coils.
Is there any explanation why there is no difference please?
Curling it does have an effect. What it does is change the inductance. The effect of this is to change the resonance point of the antenna. In other word, to get it to resonate on the same frequency you would have to shorten the antenna.
It also has an effect on the aperture of the antenna. A shorter antenna does not 'cut' the same amount of field and so the induced voltage is lower. In other words, a shorter antenna is not as good as a full length antenna.
