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TS3V712E: Difference between TS3V712E/712EL/713EL

Ann_Lien
Genius 12640 points
Part Number: TS3V712E
Other Parts Discussed in Thread: , TS3V713EL

Hello expert,

May we know the difference between TS3V712E/712EL/713EL? Thanks!

Best regards,

Ann Lien

  • 0
    Guru 286100 points

    "L" indicates level shifters. 2/3 are pinout variants.

  • 0
    TI__Genius 12640 points

    Hello expert,

    Customer's MB already transfer HSYNC/VSYNC/DDC/DAT to 5V level ,the TS3V712E have no level shift function.

    The TS3V712E spec VDD is 3.6V max and VI/O is 0~VDD ,so we must use TS3V712EL or TS3V713EL. Is that correct? Thanks a lot!!

    Best regards,

    Ann Lien

  • 0 in reply to Ann_Lien
    Guru 286100 points

    Yes; when you want to do level shifting, you need to use a device with level shifting support.

    See the typical application diagram in the datasheet.

  • 0 in reply to Ann_Lien
    TI__Mastermind 28308 points

    Hey Ann,

    I'm understanding this as you already have the signals at 5V so you don't need the level shifters but since the voltage is 5V and the TS3V12E doesn't support up to 5V you hope to use the level shifter instead and keep both sides shifted to 5V. Correct me if i'm misunderstanding you' thought process, please. 

    That being said, the level shifters would only allow for one side to be as high as 3.6V and would shift the other voltage up to 5.5V. So you would actually run into problems there as well. If the customer is already conditioning the signal and shifts it up to 5V earlier in the system we could see if they would want to use the EL devices to do the shifting for them as well and remove whatever level shifting they may already have currently in the system. 

    An alternative would be to use another switch that can handle the bandwidth and voltage requirements. The voltage is 5V as you mentioned, what frequency do we need to support?
    Would something like theTMUX1574 work here? This is a 4channel 2:1 device that could be useful. Bandwidth 3GHz and supports up to VDDx2 on the I/O. VDD can be up to 5.5V. 

    Thanks,
    Rami