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LMH0318: Does LMH0318 have programmable Pre-Emphasis?

K.Yaita
Guru 29720 points
Part Number: LMH0318
Other Parts Discussed in Thread: LMH0397

Hi Team,

The programming guide shows the following.
--------------------------------------
4.2.13 OUT0 and OUT1 Settings
The LMH0318 has programmable VOD (Voltage Output Differential), Pre-Emphasis (OUT0), PW (Pulse Width OUT0 settings), De-Emphasis Settings, and individual power-down settings
--------------------------------------
Does LMH0318 have programmable Pre-Emphasis?
I couldn't find the register to program.

Best Regards,
Yaita

  • 0
    TI__Guru* 93570 points

    Hi Yaita-San,

    Yes it does but these are disabled and register settings are not public.

    If customer requires pre-emphasis settings the recommendation is to take a look at the LMH0397 device. Please note Config_IO Reg 0x62 and 0x69.

    Regards,, Nasser

  • 0 in reply to Nasser Mohammadi
    Guru 29720 points

    Hi Nasser-san,

    Thank you for your reply.

    --------------------------------------
    4.2.13 OUT0 and OUT1 Settings
    The LMH0318 has programmable VOD (Voltage Output Differential), Pre-Emphasis (OUT0), PW (Pulse Width OUT0 settings), De-Emphasis Settings, and individual power-down settings
    --------------------------------------
    Regarding OUT0 Settings, I believe LMH0318 does not have PW (Pulse Width OUT0 settings) and De-Emphasis Settings too.
    Is my understanding correct?

    Best Regards,
    Yaita

  • 0 in reply to K.Yaita
    TI__Guru* 93570 points

    Hi Yaita-San,

    Yes your understanding is correct.

    Regards,, Nasser