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RS-232C to RS-485 converter

Kuramochi Tadahiko
Guru 28715 points

Hi,

I found following document.

/cfs-file/__key/communityserver-discussions-components-files/138/0358.RS232-to-RS485-Converter.pdf

However, my customer require 250kbps/half-duplex.

Can it implement by changing cut-off frequency of the filter ?

Best Regards,

Kuramochi

  • 0
    TI__Guru 62910 points
    Kuramochi-san,

    Yes, the R/C values used in the monostable multivibrator circuit can be adjusted based on both the data rate and the length of each message frame. The goal of the circuit is to generate a "driver enable" pulse that will last the duration of each frame and then automatically switch the RS-485 transceiver back into receive-only mode.

    Max