ADF4351-basic-LO

Very simple software for PLL ADF4351 and ATTiny13 can be compiled with arduino and microcore https://github.com/MCUdude/MicroCore

v 0.2 Ondra OK1CDJ 5/2020 ondra@ok1cdj.com

ADF4351 eval board from eBay or Ali for aprox. 17 USD.

Please check the ADF4351 datasheet or use ADF4351 software to get proper PLL register values.

ADF4351-Beacon

Simple CW beacon. SW is also for ATTiny13 now or can use ATTINY45/85 on same PCB. Beacon send string in morse code like - OK1CDJ JO70VA and then continous tone for 5s.

ADF4351-Key

Version with external keying on PB0 of ATTiny13. Can be used as simple CW transmitter.

PIN layout of ATTINY13/45/85

MCU is powered by 3.3V directly from PLL board.

pin 5 - PB0 external keying - optional

pin 3 - PB4 to ADF4531 clock (CLK)

pin 2 - PB3 to ADF4531 data (DATA)

pin 7 - PB2 to ADF4531 latch enable (LE)

Kit is available here:

https://www.hamshop.cz/pll-adf4351-c51/adf4351-ovladani-s-attiny13-stavebnice-i351/