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wiki:projects:digitensk [2021/06/14 20:57]
f4ihx
wiki:projects:digitensk [2021/07/25 20:16] (current)
f4ihx
Line 9: Line 9:
 This first version PCB was made at [[http://oshpark.com|OSH Park]], it may or may not be the definitive manufacturer of the project. This first version PCB was made at [[http://oshpark.com|OSH Park]], it may or may not be the definitive manufacturer of the project.
  
-{{:wiki:projects:digitensk:digitensk_pcb.png?400|}}+{{:wiki:projects:digitensk:digitensk_pcb.png?300|}} 
 +{{:wiki:projects:digitensk:pcb.jpg?300|}} 
 + 
 +==== First bring-up ==== 
 +First bring-up of the prototype has been done with partial component assembly (missing few parts for one of the RF path). 
 +A [[http://www.leobodnar.com/shop/index.php?main_page=product_info&products_id=234|LeoBodnar GPSDO]] was used as a clock source for the PLL (in the final setup it'll also clock the Pluto). A basic ATMEGA328PB code was written in order to program the PLL at startup and enable the first lane mixer. 
 + 
 +{{:wiki:projects:digitensk:spi_setup.jpg?300|}} 
 +{{ :wiki:projects:digitensk:spi_log.jpg?300|}} 
 + 
 +Not having access to te 26GHz SA for this test the PLL output was set to 3GHz and a tracking generator output around 2.001GHz, a Pluto RX set at 5GHz. 
 + 
 +{{:wiki:projects:digitensk:rf_setup.jpg?300|}} 
 +{{ :wiki:projects:digitensk:gr_capture.jpg?300|}} 
 + 
wiki/projects/digitensk.1623704229.txt.gz · Last modified: 2021/06/14 20:57 by f4ihx