IWR6843: TG170 instead of 370HR materials?

Mustafa Homsi

Part Number: IWR6843

Hello,

The EVM for IWR6843 and the design files specify 370HR for all the PCB layers beside the top roger layer. This material isn't easily available. Is it okay to use TG170? If not, would you recommend anything else?

Thank you,

Mustafa

over 4 years ago

0 CHETHAN KUMAR Y.B. over 4 years ago

TI__Mastermind 25835 points

Mustafa,

If the material property are similar to 370HR, TG170 material could be used. If you are using LVDS interfaces (which is high speed lines) you may have to adjust the traces to get 100ohm differential impedance.

Thanks and regards,

CHETHAN KUMAR Y.B.

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IWR6843: TG170 instead of 370HR materials?