SN75DP139: How to adjust EQ

Hailey Chen

Expert 3380 points

Part Number: SN75DP139

Tool/software:

Hi, expert:

I want to ask whether SN75DP139 EQ could adjust? I noticed the figure in datasheet

If my signal amplitude is enough, whether through SN75DP139 will over-driver?

over 1 year ago

0 Vishesh Pithadiya over 1 year ago

TI__Mastermind 47661 points

Hi Hailey,

The EQ can over equalize your signal, however this can be mitigated by proper placement of the redriver. Do you have a block diagram of your design? Its best to place the redriver in a position where the RX EQ can be optimized to compensate for the PCB loss. In this way, this component can add to the loss budget of your system.

0 Hailey Chen over 1 year ago in reply to Vishesh Pithadiya

TI__Expert 3380 points

So sn75dp139 cant adjust EQ，rigjt？it is fix value.

0 Vishesh Pithadiya over 1 year ago in reply to Hailey Chen

TI__Mastermind 47661 points

Yes

Interface

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SN75DP139: How to adjust EQ