WebCp is the input capacitance plus stray capacitance. You can use a few pF (3-5pF) for the value unless something is really strange. So, for a crystal rated with a 10pF load, Cl = … WebMSP430™ 32-kHz Crystal Oscillators 2 Crystal Selection The most important parameters when choosing a crystal are: • Crystal's required effective load capacitance (for 32-kHz crystals, typically 6 pF to 15 pF) • Crystal's ESR (for 32-kHz crystals, typically 30 kΩto 100 kΩ) • Tolerance (typically 5 ppm to 30 ppm)
Crystal Considerations with Maxim Real-Time Clocks (RTCs)
WebJan 24, 2012 · Unfortunately, if you want to get accurate and stable results out of the crystal, you need to match the capacitors to the specific crystal you chose, and it varies … WebEnter the value of 10000 in cell C14 ( Series Capacitors ). Select cell F16 ( Crystal Manufacturer ), click on the drop-down arrow and select NDK from the list of manufacturers. Select cell F17 ( Crystal Type) and choose Custom from the drop-down list. This should fill in the crystal values in cells F18 to F22. razorback pics images
Crystal Oscillator PCB Layout Guidelines - VSE
Web3.2 Load Capacitor Selection Crystal oscillator circuits must be loaded with the proper capacitance to oscillate at the correct frequency. The pi-network capacitors should be chosen based on the chosen crystal’s rated load capacitance, as well as stray capacitances from the PCB and PSoC pins. WebConsult the crystal manufacturer on the value for the capacitor and whether it should be included. If it’s impossible to consult with the crystal manufacturer, it is recommended that you add a capacitor to block the DC voltage. A good rule of thumb is to use a capacitor approximate ly 100 times the load capacitance of the crystal. Webas capacitors or inductors, or indeed than L/C tuned circuits. Crystal Parameters The equivalent circuit of a crystal, shown in Figure 1, consists of the motional induc-tance, Lm, and the motional capacitance, The authors share their comprehensive crystal filter design program. Cm, in series with the loss resistance, Rm; razorback phone case