PLL Frequency Measure and adjust microcomputer compensated crystal oscillator (MCXO) STM32 and Si5351A
$30-250 USD
Πληρώθηκε κατά την παράδοση
The project is to come up with a method for a microcomputer compensated crystal oscillator (MCXO) using the internal temperature sensor of a stm32 and a Si5351A with a standard 25mhz crystal, The idea is to use a frequency counter or preferably a PLL to measure the output of a Si5351A (I2C-PROGRAMMABLE ANY-FREQUENCY CMOS CLOCK GENERATOR) at a range of temperatures and store the compensated frequency in a lookup table in the stm32 that is used when the device is in the field. The device will need to provide an Up/Down/Lock signal to the STM32 which will in turn adjust the Si5351A. A preliminary look a potential devices include using a coded PLL or an internal PLL in a FPGA or discrete components such as a MCK12140DG or a CD74ACT297M
Ταυτότητα Εργασίας: #30031926
Σχετικά με την εργασία
2 freelancers κάνουν προσφορές κατά μέσο όρο $225 για αυτή τη δουλειά
FPGA Expert here I carefully read your project requirements and I understand that you want to design PLL Frequency Measure and adjust microcomputer compensated crystal oscillator FPGA based project. Yes I will design i Περισσότερα
HI, I think I undestand your project and I like the idea of using an FPGA. However, I'm not sure if the internal plls of an fpga can be used to measure clk phase and freq. One method could be using an fpga and 2 freer Περισσότερα