jimyhf2 Posted September 7, 2006 Report Posted September 7, 2006 Where can I buy 7.6MHz Crystals?hijackthis.zip Quote
hotwaterwizard Posted September 7, 2006 Report Posted September 7, 2006 Are you sure it is not 7.68MHZ ?Mouser has several in-stock7.6MHz Crystalshttp://www.mouser.com/search/Refine.aspx?Ne=1447464+254016&Ntt=*7.6*%2b*MHz*%2b*Crystal*&Msb=0&Mkw=7.6+MHz+Crystal&N=1323038IN-STOCK ITEMSMouser Part #: 520-HCA768-20X IN-STOCKManufacturer Part #: ECS-76.8-20-1X 7.68 Manufacturer: ECS Description: HC-49/U Microprocessor Crystals 7.68 MHZ 20pF Mouser Part #: 695-CS20-768 IN-STOCKManufacturer Part #: CS20 7.680MABJ-UT Manufacturer: Citizen Description: CS20 SMD Crystals CS20 SMD Crystals 7.68 MHZ 18pF CERAMIC SMD Datasheethttp://www.citizencrystal.com/images/pdf/ms-cs20.pdfMouser Part #: 520-HCU768-20X IN-STOCKManufacturer Part #: ECS-76.8-20-4X Manufacturer: ECS Description: HC-49/U-S Microprocessor Crystals 7.68 MHZ 20pF NON-STOCK ITEMSMouser Part #: 695-HC49US-768-U Manufacturer Part #: HC49US7.680MABJ-UB Manufacturer: Citizen Description: HC49US Radial Leaded Crystals HC49US Radial Leaded Crystals 7.680 MHz 18pF HC49S THROUGH HOLE Datasheethttp://www.citizencrystal.com/images/pdf/ms-hc49us.pdfMouser Part #: 695-CM309S-768-U Manufacturer Part #: CM309S7.680MABJ-UT Manufacturer: Citizen Description: CM309S SMD Crystals CM309S SMD Crystals 7.680 MHZ 18pF PLASTIC SMD Datasheethttp://www.citizencrystal.com/images/pdf/ms-cm309s.pdfMouser Part #: 695-CSA309-768-U Manufacturer Part #: CSA309 7.680MABJ-UB Manufacturer: Citizen Description: Crystals 7.680MHz Datasheethttp://www.citizencrystal.com/images/pdf/ms-csa.pdf Quote
jimyhf2 Posted September 7, 2006 Author Report Posted September 7, 2006 No, I need 7.6MHz crystal.It's for BH1415 transmitter chip.Regards,Jim Quote
audioguru Posted September 7, 2006 Report Posted September 7, 2006 This Micromitter project explains what happens to the RF frequencies when a 7.68Mhz crystal is used instead of the 7.6MHz one in the datasheet for the BH1417 IC:http://electronics-diy.com/BH1417_PLL_Stereo_FM_Transmitter.php Quote
jimyhf2 Posted September 7, 2006 Author Report Posted September 7, 2006 Many thanks for that link!Jim Quote
jimyhf2 Posted September 7, 2006 Author Report Posted September 7, 2006 Is there any way that you can re-adjust the frequency of a crystal?Has anyone tried it? Quote
audioguru Posted September 7, 2006 Report Posted September 7, 2006 Is there any way that you can re-adjust the frequency of a crystal?Only a few parts per million. Quartz crystals have an extremely accurate frequency. Just buy or order the exact frequency you want. Quote
AN920 Posted September 7, 2006 Report Posted September 7, 2006 You can only pull by about 0.2% of the marked frequency Quote
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