How to install Arduino Attiny board - ONLY IF YOU NEED TO MODIFY ATTINY HEX FILE:

MUX outpul level will be 300mVpp/50 ohms.Īlso 3.3V can be enabled if the frequency counter is too lazy, MUX output 1100mVpp/50 ohms. Output option 1.8V is enough to trigger any frequency counter without to damage the input. In this way, after every registers modification, the software is fast uploaded via USB.ĭivider N = 100 Variable Modulus OFF Prescaler 4/5 MUXOUT N Counter Output level 1.8Vĭivider N = 1000 Variable Modulus OFF Prescaler 8/9 MUXOUT N Counter Output level 1.8V During experiments Attiny uC can be replaced by any Arduino board (Uno, Nano, etc). The registers values will be calculated with same ADF41513 evaluation software and then inserted in the Arduino sketch to compile. Fore more details read EV-ADF41513 User Guide UG-1427. Hardware platform must to be populated according ADF41513 evaluation board. Note: With small modification the project can be extended to normal PLL operation of ADF41513. Power restart of uC is required if the ratio was changed by switch, because SPI words are sent only one time after power up. Integer N mode supports any value between (range limited by 4/5 or 8/9 internal prescaler).įor my purpose two useful ratios 100 / 1000 were programmed. All 14 registers are calculated using ADF41513 evaluation software, free download from Analog Device website. According datasheet, RF input sensitivity is better for 8/9 prescaler option.ĭividing ratio can be modified according necessity by changing registers inside of Arduino sketch. Maximum input frequency is up to 26GHz, maximum input level +5dBm. Frequency divided signal is available on MUXOUT pin. ADF41513 PLL IC used only for internal N counter in order to extend the range of frequency counter.

Sprint layout 5 arduino nano