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74LS Voltage-controlled Oscillators. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of . Texas Instruments (TI) reserves the right to make changes to its products or to discontinue any semiconductor product or service without notice, and advises its . 74LS datasheet, 74LS circuit, 74LS data sheet: TI – VOLTAGE- CONTROLLED OSCILLATORS,alldatasheet, datasheet, Datasheet search site for.

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Already have an account? If you could post your design for one it would be helpful. But the VCO’s frequency can simply be set with a DC voltage from a pot, then the clock oscillator and other parts aren’t needed.

Sign In Sign Up. Learn more – opens in new window or tab. Looks like the geniuses have let you down so far Then the circuit will be a single or switched frequency phase-locked-loop instead of a variable VCO.

Sign up for a new account in our community. By the way I have seen the schematic for a VCO and it looks quite complicated. They incorporate a phase detector, a programmable section, and a crystal. Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. The item you’ve selected was not added to your cart.


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Instead of the additional phase-locked-loop parts, you can use a simple variable DC control voltage from a pot that I recommended to set its frequency to 10KHz. For additional information, see the Global Shipping Program terms and conditions – opens in a new window or tab. It would seem you could design one that works alone but the ones on the market require the phase detector. There are items available. Delivery times may vary, especially during peak periods.

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74LS629 View Datasheet(PDF) – Texas Instruments

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Kevin, A phase detector produces a DC correction voltage to adjust the frequency and phase of the VCO so that it is exactly the same as the crystal oscillator. Taxes Sales tax may apply when shipping to: Learn More – opens in a new window or tab. Sell datashdet – Have one to sell?

74LS 데이터시트(PDF) – TI store

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