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I tried using a inverter see attachment for configurationand after removing the capacitor and lowering the value of R to the point just before oscillation stopped, I measured a frequency of 5 MHz with my oscilloscope.

Of course, the best option would be to, where possible, use the “Picogate” devices, which would mean none were left wasted.

Page 1 of 1. Connect the enable pin to ground. Sat May 01, Help with IC design Voltage regulator Posted by morto00x in forum: Do you already have an account? Discussion in ‘ General Electronics Chat ‘ started by dumindu89Oct 12, I’d say this is good for 50 MHz and more, even MHz. Breadboards aren’t really good. This is a page from my 3×5 ring binder which is a quick-reference guide for all my workbench-computer-related stuff: Oct 2, 17, 5, Getting Crystals Made Posted: Quote of the day.

No, create an account now. Nov 24, A couple of the topics here where we discussed oscillators are here and here. Circuit Cellar had a featureless clock project.


Sun May 02, 2: A few other places we discussed clock oscillators: Nov 17, 8. You are going to encounter difficulty getting a CMOS chip to work at that frequency.

Nov 17, 9. However, I used them for circuits producing some MHz. There are ‘s that will do MHz, but they’re part of a custom microcontroller that’s for a specific use. Oct 24, 6.

Help with 74S IC | All About Circuits

See figure 2 of the datasheet. Only for VHF television etc. Apr 14, 7, I made the second one shown datashset for an upcoming project where I wanted a maximum frequency higher than I could get with the first one which is of similar design.

However it also works well datashedt small prototyping PCBs turned upside down copper at the top. Posted by keithg in forum: When the power supply is 12 Volts, the speed will be much higher as when 5 Volts is used.

Your name or email address: Mitsubishi’s Floating Aerial Displays Mitsubishi plans to commercially release a system that can display floating images by Readily available crystals and oscillators cover the most commonly used clock speeds – it is certainally not worth the cost of having a crystal custom-made unless you need to run at some obscure frequency for timing reasons.

It used an input of 80 or MHz and there might have been a PLL to generate a lot more frequencies than you could merely by changing a divisor. Yes, my password is: Hello, Did you read in the data sheet, that the speed of the inverters are dependend on the power supply? Has anyone here in the forums used an Atmel IC for high dxtasheet, high resolution clock generation? The problem with it was that the output speed was selected by a serial input; so if you boot up at a lower speed to read an EPROM for example, then increase the speed, and if the computer crashed at high speed, you wouldn’t be able to get it going again, because it couldn’t write a lower speed to re-start until it was workig.


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No, create an account now. Yes, my password is: Nov 17, 3. I used to look at a CD datasheet, I still remember the part without looking it up! Still need help with l ic circuit. You could try the attached circuit using various Schmidt trigger inverters. Dividers are obviously lacking resolution anywhere near the input clock speed Proto PCB should have single hole pads, not strips. Also the stability of a RC oscillator will be far from ideal.

Since it’s an iverter, and CMOS gates basically pull the output all the way to one rail or the other anyway, I figure you’re kind 74a124 giving it an extra power or ground connection through the output if you connect the input and output to oposite rails.