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DS100BR111: DS100BR111,DS100BR111A Difference and Threshold Level

Hiroaki Yuyama TED
Expert 1810 points

Part Number: DS100BR111

Dear, support team.

What is the difference between DS100BR111 and DS100BR111A?
Do you have a min value for the  Assert and De-assert Level?


We are considering replacing from Pericom Semiconductor ReDriver.

Best Regards,
Hiroaki Yuyama

  • 0
    TI__Mastermind 29655 points
    Hi Yuyama-san,

    The difference between the DS100BR111 and DS100BR111A is the output VOD level. The DS100BR111 ranges from 700-1300 mVpp, while the DS100BR111A ranges from 600-1200 mVpp. This was done to accommodate for different interface signaling standards depending on application use case.

    The minimum value for the signal detect threshold is determined by the SD_TH pin (see Table 2). Minimum assert/de-assert level is 160 mVpp and 100 mVpp, respectively. Alternatively, there is a way that you can program the device to be "always on" by enabling "Continuous Talk Control" in Reg 0x01[7:6].

    Thanks,

    Michael
  • 0 in reply to Michael Lu (Santa Clara)
    Expert 1810 points
    Hi,Micheal-san,
    Thank you for your reply.

    I understood that the difference between DS100BR111 and DS100BR111A is VDO.

    The minimum value for the signal detect threshold is determined, but it is TYPICAL ASSERT, DE - ASSERT LEVEL.
    Can you answer these minimum values?

    Best Regards,
    Hiroaki Yuyama
  • 0 in reply to Hiroaki Yuyama TED
    TI__Guru* 93570 points
    Greetings Yuyama-San,

    This data has not been characterized so this is why we have typical value only. Please consider using 30% margin. Given this you can add 30% for assert level and subtract 30% for de-assert level. Please let us know.

    Regards,,nasser
  • 0 in reply to Nasser Mohammadi
    Expert 1810 points
    Hi,Nasser-san,
    Thank you for your Answer.

    I will help circuit design with only reference value data.

    Best Regards,
    Hiroaki Yuyama