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regarding AIF2 interface with SFP Connector

Pradeep Naru
Intellectual 300 points
Other Parts Discussed in Thread: TMS320TCI6618

Hello All, 

                 1.In our prototype board we have connected one lane of Antenna Interface AIF2(from DSP to SFP) (one transmitter and one receiver) to SFP connector.Is the any constraint on the no. of lanes to be connected? Our intention is to deliver the CPRI frame created by AIF2 to RRH.

                2.if we proceed with one lane what is the data rate that can be achieved?

                 3.1Gbps 20kms range SFP Connectors are available with us(reason for using 1 lane).Can we proceed?

                                   

  • 0
    TI__Expert 4740 points

    Hi, see my answers in line.

     1.In our prototype board we have connected one lane of Antenna Interface AIF2(from DSP to SFP) (one transmitter and one receiver) to SFP connector.Is the any constraint on the no. of lanes to be connected? Our intention is to deliver the CPRI frame created by AIF2 to RRH. [Albert] we have six lanes on AIF2 and I believe it is enough number.

                    2.if we proceed with one lane what is the data rate that can be achieved? [Albert] if you use 8x speed, you will get 3.84 Gbps for IQ data. for 4x speed, it will be 1.92 Gbps per lane

                     3.1Gbps 20kms range SFP Connectors are available with us(reason for using 1 lane).Can we proceed? [Albert] no problem. you can increase the  ingress AxC offset for the delay from cable.

    Regards,

    Albert

  • 0 in reply to Albert Bae
    Intellectual 300 points

    Hi,

         In our board we are using TMS320TCI6618 DSP.It has six AIF Lanes.We are connecting single AIF lane(AIFRXN0,AIFRXP0,AIFTXNO,AIFTXPO) from DSP to SFP connector.Remaining AIF lanes (AIFRXN1,AIFRXP1,AIFRXN2,AIFRXP2,AIFRXN3,AIFRXP3,AIFRXN4,AIFRXP4,AIFRXN5,AIFRXP5, AIFTXN1,AIFTXP1,AIFTXN2,AIFTXP2, AIFTXN3,AIFTXP3,AIFTXN4,AIFTXP4,AIFTXN5,AIFTXP5) are left floating.Does it work?

  • 0 in reply to Pradeep Naru
    TI__Expert 4740 points

    Yes, that should be fine.

    Albert