DS90UB941AS-Q1: 941 SCH

Amelie Zheng

Genius 10865 points

Part Number: DS90UB941AS-Q1

Hi Team,

Could you kindly help to review customer 941 SCH? Thanks!

8863.pdf

over 4 years ago

0 Michael.Walker over 4 years ago

TI__Mastermind 19720 points

Hi,

Are the IVI display and IPC display the same resolution?

The AC caps on the FPD-Link Lines should be 100nF (C6041, C6042, C6043, C6044)

Why do you have a 100 Ohm resistor on the SCL line but not SDA? R6032

Regards,

Michael W.

0 shi ming over 4 years ago

Prodigy 20 points

Hi Michael

1:Two displays are 1920*720

2:As datasheet, 33nF capacitors are necessary,why do we use 100nF capacitor

FPD-Link III Inverting Output 0
The output must be coupled with a 33nF capacitor

0 Michael.Walker over 4 years ago in reply to shi ming

TI__Mastermind 19720 points

Hi,

1. this is fine.

2. in "Figure 9-1. Typical Connection Diagram - STP" the capacitor is recommended to be 100nf.

0 shi ming over 4 years ago

Prodigy 20 points

Hi Michael:

Accroding to datasheet,VDD1.8V rise time is 2ms(min)@10/90% and VDD1.1V rise time is 0.05ms(min)@10/90%.

We tested our product as below,would you let me know the risk?

0 Michael.Walker over 4 years ago in reply to shi ming

TI__Mastermind 19720 points

Hi,

We recommend that you follow the datasheet spec for VDD1.8V rise time of 0.2ms(min)@10/90% and VDD1.1V rise time of 0.05ms(min)@10/90%. A fast rise time can turn on the devices internal ESD protection and damage the device or cause the device not function properly.

Regards,

Michael W.

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DS90UB941AS-Q1: 941 SCH