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Rx/Tx Turnaround Time

Dark Cly
Prodigy 110 points

Dear All,

is there any way to avoid the tx/rx turnarround time which is in BLE equals to 0.15 microsecond.

For example is it possible to design a chip which uses dual module handling reception and transmission separately.

Thus, when the reception finishes it can be directly continued by transmission. No need to wait for IFS.

In addition, what is the fastest rx/tx turnaround time on the current BLE available chip?

Thank you for reply in advances.

  • 0
    Prodigy 110 points
    I am sorry my mistake, current IFS in BLE according to standard is 150 microseconds (as I understand, this is basically tx/rx turnaround time).
  • 0 in reply to Dark Cly
    TI__Mastermind 29650 points
    Hi Dark,

    It would be possible to have multiple radio interfaces in a chip to keep different connections on each but impractical as it would be require multiple RF pins, matching networks and antennas. In addition you would end up jamming the receiver if you transmit at the same time.

    This is as you say specified by the BLE standard so it doesn't make sense having this possibility in a BLE chip.

    Regards,
    Svend