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AWR1443: Using Two LVDS Lanes Instead of Four

Johnny Lorang
Prodigy 90 points
Part Number: AWR1443
Other Parts Discussed in Thread: AWR1642,

Hello,

I have a quick question regarding the number of LVDS lanes of the AWR1443 as compared to AWR1642.

While the AWR1642 has only two differential data out lanes (Lane 0 and Lane 1), the AWR1442 incorporates two additional lanes (Lane 2 and Lane 3) with the signal names HS_RESERVED_TXP[2], HS_RESERVED_TXM[2], HS_RESERVED_TXP[3] and HS_RESERVED_TXM[3] as indicated in the datasheet.

Do these two additional lanes provide any further information and does it make sense to route these onto a debug connector as well? Or is it possible to read out all relevant data using only Lane 0 and Lane 1?

Best regards,

Johnny

  • 0
    TI__Guru 58035 points
    Hello Johnny,
    The LVDS interface is used to send out RX ADC data. 1443 device allows using upto 4 LVDS data lanes while 1642 device has only 2 data lanes. But in 1443 also you can configure the device to send out the data on only two lanes. Having more number of lanes enables faster data transfer.

    Regards,
    Vivek