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How to make, where to buy, order 5 kHz, 10 kHz, 15 kHz crystal/ ceramic resonators

Since this is just a test, and since you are using audio frequencies, why not just use a standard audio function generator? If you really need a stable audio frequency, you might want to check out my DaqGen freeware. It generates audio frequency waveforms with your Windows soundcard. Frequency stability is excellent since it derives from the crystal in the sound card. And unlike a homebrew circuit, you can get low-distortion sine waves, or just about any other waveshape you can imagine. Then if your experiments uncover anything worth following up, you can always build a dedicated circuit when you know just what the ideal parameters are.

Best regards,

Bob Masta dqatechATdaqartaDOTcom D A Q A R T A Data AcQuisition And Real-Time Analysis

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Home of DaqGen, the FREEWARE signal generator

Reply to
Bob Masta
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"Michael A. Terrell" wrote in news: snipped-for-privacy@earthlink.net:

Hi Michael, this is completely off topic, but I have beeen trying to send an order to you over two weeks...is your email working..I am the guy from Australia.

Reply to
Al

On a sunny day (Thu, 16 Nov 2006 02:46:07 +0000) it happened Eeyore wrote in :

In fact most analog PAL TVs will have a 8.86 MHz xtal. Makes it easier to get 90 degrees. As for the OP remark, makes no sense. If you want a one second tick, and for example have a FPGA on board, it is one line of verilog from a 50MHz xtal. Not much more lines of ASM in a PIC with a 20 MHz xtal. Depending on how much jitter is allowed you can make a nice synthesiser too in FPGA for many frequencies (higher the xtal too). And finally the color subcarrier... will likely not be needed much longer, its is all going digital, or at least Y Cr Cb, not composite.

Reply to
Jan Panteltje

Many useful frequencies from 20kHz on up are standard stock items at digikey. Less than a dollar for a standard value.

Custom ordering one is possible, but will typically be $100+ or so and will have a turnaround time measured in a week or two.

If you just want a square-wave oscillator there are many techniques (including user-programmable or distributor-programmable oscillator modules) that may do the job depending on your phase noise/jitter requirements.

If you want a sine wave oscillator there are numerically programmed direct digital synthesizers for a few bucks that do well for many (but not all) applications.

Tim.

Reply to
Tim Shoppa

then you dont need this xtal at all.

NT

Reply to
meow2222

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