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Channel Link III Serializer and Deserializer DS92LX1621/22 / Bi-directional control interface channel with I2C

Viktor Steiner
Prodigy 30 points
Other Parts Discussed in Thread: DS92LX1621

How are the up- and down-stream channels separated?

Do they have a different modulation frequency?

  • 0
    TI__Expert 7395 points

    Hi Viktor,

    The DS92LX1621/2 Channel-Link III chipsets uses an architecture referred as Continuous Bidirectional Control Channel; where both high-speed data and control data are transferred simultaneously over a single pair of wires. Receivers in the serializer and deserializer are able to separate the forward (Tx to Rx) channel data from lower speed data travelling in the reverse direction (Rx to Tx). Please see article sn0a868 for reference:  http://www.ti.com/lit/an/snoa868/snoa868.pdf

    Dac Tran

    SVA / APPS