{"product_id":"multiphase-oscillator-with-40-spread-spectrum-frequency-modulation-and-250khz-output-frequency","title":"Multiphase Oscillator with 40% Spread Spectrum Frequency Modulation and 250Khz Output Frequency","description":"\u003cp\u003eThis is a precision, low power, and easy-to-use oscillator that provides multiphase outputs. The output frequency of the project is set to \u003cstrong\u003e250Khz\u003c\/strong\u003e, with \u003cstrong\u003e40% spread spectrum\u003c\/strong\u003e. The oscillator frequency can be set by resistor R1, and the spread spectrum can be changed using R3. The master oscillator is controlled by the R\u003csub\u003eSET\u003c\/sub\u003e resistor R1 and has a range of \u003cstrong\u003e100khz to 20Mhz\u003c\/strong\u003e. In order to accommodate a wider output frequency range, a programable divider, (divide by 1, 10, 100) is included and can be set using jumper J1.  The integrated programmable multiphase circuit provides either 2, 3, or 4 phase waveforms. The \u003cstrong\u003eLTC6902’s\u003c\/strong\u003e SSFM capability modulates the oscillator’s frequency by a pseudorandom noise (PRN) signal to spread the oscillator’s energy over a wide frequency band. This spreading decreases the peak electromagnetic radiation level and improves electromagnetic compatibility (EMC) performance. The amount of frequency spreading is programmable by a single additional external resistor R3 (R\u003csub\u003eMOD\u003c\/sub\u003e). Refer to 4 Phase output waveform diagram.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePower Input 5V DC\u003c\/li\u003e\n\u003cli\u003eDefault Output Frequency 250Khz\u003c\/li\u003e\n\u003cli\u003eDefault Spread Spectrum 40%\u003c\/li\u003e\n\u003cli\u003eJumper for Frequency Division\u003c\/li\u003e\n\u003cli\u003eJumper for Multiphase Mode\u003c\/li\u003e\n\u003cli\u003e4 Phase Outputs\u003c\/li\u003e\n\u003cli\u003ePCB Dimensions 20.16 x 15.88 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"simple-alert-boxes sab_info sab_normal\"\u003e\n\u003cstrong\u003eNote:\u003c\/strong\u003e The module can be configured as per the requirement of frequency output and spread spectrum percentage, refer to the datasheet of LT6902 for more information. By default, the circuit is set for \u003cstrong\u003e250Khz\u003c\/strong\u003e output with \u003cstrong\u003e40% spread spectrum\u003c\/strong\u003e with RSET-R1= 20Kohms, Jumper J1 Open, Jumper J2 Connect to VCC, and Rmod(R3) = 10Kohms.\u003c\/div\u003e\n\u003cdiv class=\"simple-alert-boxes sab_info sab_normal\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"simple-alert-boxes sab_info sab_normal\"\u003e\u003c\/div\u003e","brand":"dotfry","offers":[{"title":"Default Title","offer_id":47249170563244,"sku":null,"price":16.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/6436\/7532\/files\/B152.jpg?v=1789889905","url":"https:\/\/dotfry.com\/products\/multiphase-oscillator-with-40-spread-spectrum-frequency-modulation-and-250khz-output-frequency","provider":"dotfry","version":"1.0","type":"link"}