Why DAC-based TX Driver in a SerDes?

[@rangababuganta7725]

Thank you Chen. DSP can do FIR +adaptation. DAC can convert D TO A .in this case how does VM TX driver will work on DAC output ?? CM driver can act as buffer for analog data from DAC. ( VM TX driver can't work on analog signal ? ) am i missing anything ?? could you explain a bit more. VM driver supply will be DAC output ?? Thank you CC Chen for your time.

[@circuitimage]

Thanks for the feedback. VM TX driver was made with a few slicers to convert digital to analog, which might not be obvious. I plan to do a few images to help everyone understand it.

[@AkashGupta-po2bg]

Thank you Chen 👍🏼

[@circuitimage]

My pleasure!

[@circuit6874]

There's something I'd like to ask. I'm a master's student studying memory-related interfaces. In the case of PIM memory, can a DAC-based TX be used in the interface? Also, it appears that the DAC-based TX block diagram includes DSP/FIR. How can I study this block? Could you please let me know if there are any papers or study materials related to this block? This article may be awkward because it is translated.

[@circuitimage]

Hi Circuit, nice to meet you, and thank you for the good questions. My understanding is the PIM memory's driver would not require a high-resolution DAC-based driver unless I'm missing something. For the DSP/FIR, you could learn from any book on "Discrete-Time Signal Processing." For the paper, that could be very specific because everyone has their own implementation of the DSP/FIR. 😄