Hi Team,
we are designing AGX Orin based carrier board design, we need the MGBE Refclk oscillator 156.25MHZ suggested part numbers to use.
The MGBE ref clk 156.25MHzs used in AGX orin devkit Schematic is not orderable and not able to find the part from online. could you share the full ordering part number or any suggested list of oscillators for the MGBE clk ref.
*** Please note that this reply is generated by LLM automatically ***
I’d be happy to help you with your question!
The Jetson AGX Orin Developer Kit uses a 156.25MHz oscillator for the MGBE Refclk, but the specific part number used in the devkit is not orderable and not easily found online.
After researching and comparing various oscillator options, I’ve compiled a list of suggested part numbers that you can use as a replacement for the MGBE Refclk oscillator:
When selecting an oscillator, please ensure that it meets the following specifications:
It’s essential to verify the specifications and compatibility of the oscillator with your design before making a final selection.
Additionally, you may want to consider the following factors when selecting an oscillator:
I hope this helps you find a suitable replacement for the MGBE Refclk oscillator in your AGX Orin-based carrier board design!
*** Please give the thumbs up if you get answers you like. Or provide feedback to help us improve the answer. ***
Hi @carolyuu ,
you have suggested to check for CMOS or LVCMOS output but the AGX orin devkit suggest to use HCSL output type oscillator. can you clarify it
also can you suggest the connection of 10G Magnetics centra tap connection cap and resistor values which should be used if i use discrete magnetics.
Please refer to the design guide for the MGBE reference clock specifications. You can source equivalent clock oscillator based on the specifications in the design guide. Jetson AGX Orin Series Design Guide (including AGX Orin Industrial) Log in | NVIDIA Developer
Suggest to check with your 10G ethernet PHY vendor for recommendations for the 10G magnetics and surrounding components.
Hi @sgursal ,
The MGBE reference clock should be given to SOM’s UPHY_REFCLK2_N /P Pins, i think this clock oscillator should match the recommendation of the SOM.
also we checked with Magnetics vendor, they do not have any recommendations for MGBE REF CLK.
could you check if any oscillator parts have bee used or recommended to use for 10G ETH of AGX orin SOM UPHY_REFCLK2_N/P.
Please check the BOM available in Jetson AGX Orin Developer Kit Carrier Board Design Files (A05)
Hi @sgursal ,
we have checked the BOM files of the AGX Orin Devkit there is no part number given for the 156.25MHZ only the DHA560003 is provided in both BOM and SCH.
we have selected oscillator HCSL type MPN-AK3BHDF1-156.2500T which can match the requirement of 156.25MHZ given in the Orin design guide, can you confirm whether we can use the clock oscillator?
Meantime we need to know the flashing procedure of the AQR113C’s SPI flash memory externally used? is there any firmware or driver available to configure the SPI flash of the AQR113c for the first to boot? we are using AGX Orin SOM with AQR113C with same connections as per the Devkit schematics with 10G magnetics and connector, we need to know how to flash the AQR113C IC for the first time & what is the sequence to configure it?
Oscillator part number and manufacturer is given in the BOM. You need to find equivalent, if needed.
For AQR113C related queries, please check with the device vendor.
Hi @sgursal ,
we are using MPN-AK3BHDF1-156.2500T oscillator for the MGBE ref clock to Orin SOM, can uyou please let us know if we can use this part and matches the requirement of ORIN SOM?
