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TS3L501E: RGMII SWITCH FUNCTION

Patty Chuang
Intellectual 1155 points
Part Number: TS3L501E

Hi Team,

My customer would like to know if TS3L501E supports RGMII switch function or not.

Please let me know, thanks!

Patty Chuang

  • +1
    TI__Mastermind 47087 points

    Hi Patty,

    What version of RGMII is being used - and what frequency is being used - as there are multiple versions of RGMII I want to make sure I am looking at the same RGMII standard as the customer.

    Best,

    Parker Dodson

  • 0
    TI__Mastermind 47087 points

    Hi Patty,

    I see that you have clicked resolved - I am not sure if you no longer have this problem, but in case you do.

    The TSL501E can handle any protocol that falls into the following categories:

    Voltage supply - VDD = 3V to 3.6V

    Max current through switch - Max = +/- 128mA

    Signal levels - Device can pass signals 0V to VDD, and with no ESD diodes to VDD, overvoltage events within abs max will not cause back powering.

    Bandwidth - each differential channel has a typical BW of 600MHz - with the 8 channels the device can support up to BASE1000-T - which is 1000Mbps. There are 4 differential data lanes - which means each data lane is appx. going to hold 250Mbps - which when converted to device bandwidth (multiply data rate by 1.5 - 3) and you can see that each lane will require between 375MHz and 750MHz of bandwidth - since this device usually has 600MHz of bandwidth per channel this part can support 1000Mbps. 

    To check if the bandwidth will work for your application follow the following formula:

    1. Find total data rate

    2. divide needed data rate by number of channels (for differential signals on the TSL501E this leaves us with 4 Lanes) 

    3. Multiply resulting data rate by 1.5x and 3x -> if the answer is in-between 1.5x and 3x data-rate there will be some minor attenuation, and above 3x there will be little to no attenuation due to frequency. 

    This device should be able to work in a lot of applications but it depends on exactly on how this is implemented. 

    If you have any questions please don't hesitate to reach out!

    Best,

    Parker Dodson