THVD8010: about connecting THVD800/THD8001 transceiver.

KIYOSHI KOGURE

Prodigy 110 points

Part Number: THVD8010

Please see the attached PDF file

①Can DC power be supplied with this connection?

②Is it possible to communicate with this connection?

About the transceiver 2 side

cannot be connected to GND.

DC Supply power from transceiver A side to transceiver B side.

Please let me know what is the problem with this circuit.

Places ① to ⑩

If there is a problem please advise how to solve it]

Thank you

circuit diagram.pdf

over 2 years ago

0 Eric Hackett over 2 years ago

TI__Guru 69522 points

Kogure-san,

Our THVD80xx expert has been assigned this thread but will be out of office until Tuesday next week. Thank you for your patience.

Regards,

Eric Hackett

0 Parker Dodson over 2 years ago

TI__Mastermind 46607 points

Hi Kiyoshi,

I believe I reviewed this schematic / block diagram on your other thread - here is a link to the thread as I go through the comments there.

https://e2e.ti.com/support/interface-group/interface/f/interface-forum/1128444/thvd1406-about-connection-of-thvd1406

As a quick summary:

The connection is fine (the power ground for the supply of the second device is the "Ground" so that's fine)

I'd suggest termination resistors and protection diodes.

Depending on chosen modulation frequency the capacitors/inductors can be sized appropriately - I have attached a quick design calculator to help quickly calculate the inductor/capacitor values based on modulation frequency - please refer to datasheet for valid modulation frequency ranges.

THVD80x0_Design_Calculator.xlsx

Best,

Parker Dodson.

Interface

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THVD8010: about connecting THVD800/THD8001 transceiver.