TFP4 Datasheet

yoshiki hasebe

Mastermind 6385 points

Other Parts Discussed in Thread: TFP401

Dear Sirs,

Our customer asked us below questions.

1.Figure 11. Minimum Time /PD Low　tWL(PDL_MIN)

We find a tWL(PDL_MIN) in Figure11 on page 10.

But we can not find the specs of this tWL(PDL_MIN) in the data sheet.

Please tell us specs of tWL(PDL_MIN).

2.Figure 14. Minimum DE Low and Maximum DE High tDEL, tDEH

We find tDEL, tDEH in Figure14 on page 11.

But we can not find the specs of these tDEL, tDEH in the data sheet.

Please tell us specs of tDEL, tDEH.

Best Regards,

Y.Hasebe

over 10 years ago

0 Elias Villegas M. over 10 years ago

TI__Guru* 76130 points

Hello,
Please complete the part number, we have a few devices that start with "TFP4"
Regards

0 yoshiki hasebe over 10 years ago in reply to Elias Villegas M.

Mastermind 6385 points

Hello　Elias-san,

We are very sorry to unclear device name.

It is TFP401.

Best Regards,

Y,Hasebe

0 Elias Villegas M. over 10 years ago in reply to yoshiki hasebe

TI__Guru* 76130 points

Hello,

We are reviewing this datasheet, you will probably not need the value of these parameters, you can use the following as reference:
The TFP401/401A monitors
activity on DE to determine if the link is active. When 1 million (1e6) pixel clock periods pass without a transition
on DE, the TFP401/401A considers the link inactive and SCDT is driven low. While SCDT is low, if two DE
transitions are detected within 1600 pixel clock periods, the link will be considered active and SCDT is pulled
high.

Regards

0 yoshiki hasebe over 10 years ago in reply to Elias Villegas M.

Mastermind 6385 points

Hello Elias-san,

Thank you for your reply and I'm sorry to delay my reply.
I understood the behavior of DE.
Therefore ,
I do not know why there is no need specs of tWL , tDEL ,tDEH.
Please tell me the case that require the above parameters.
Also please tell me the specs at that time.

Best Regards,
Y.Hasebe

0 Elias Villegas M. over 10 years ago in reply to yoshiki hasebe

TI__Guru* 76130 points

Hello Hasebe-san,

The minimum time for DE being low is 128 Tpixel, there is no spec for DE high since this is dependent on the resolution.
For PD#, I would say keep it a minimum of 9ns which is the pipeline delay from PD# being low to the outputs being Hi-Z.
Regards

0 yoshiki hasebe over 10 years ago in reply to Elias Villegas M.

Mastermind 6385 points

Hello Elias-san,

Thank you for your quick reply.

I understand your comments.

I will send it our customer.

Best Regards,

Y.Hasebe

Interface

Interface forum

TFP4 Datasheet