TDP142: DP1.4 retimer

GARETH OU

Part Number: TDP142

The customer’s board EVT has come back, but the re-driver has been added, the eye pattern can pass, but the jitter can’t be passed, so the next version is looking for a re-timer to improve the jitter Can TDP142 Redriver improve jitter?

over 2 years ago

0 Zach Dryer over 2 years ago

TI__Genius 13310 points

Hello, Gareth,

Redrivers have a limited ability to clean up jitter. Redrivers can clean up ISI but if you have concerns of sources other than ISI causing jitter causing your eye to fail you will want to consider using a retimer.

You may consider using the DP159 as the DisplayPort retimer. Here is some documentation on that for you: https://www.ti.com/lit/an/slla358/slla358.pdf.

Thanks,

Zach

0 GARETH OU over 2 years ago in reply to Zach Dryer

Guru 11375 points

Hi Zach

Is there a re-timer for HW adjustment? DP159 seems to only work with i2c, thank you

0 Zach Dryer over 2 years ago in reply to GARETH OU

TI__Genius 13310 points

Hi, Gareth,

The DP159 is both I2C or Pin Strap Programmable.

Thanks,

Zach

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TDP142: DP1.4 retimer