DS90UB926Q-Q1: Address question

Kai Hsiao

Guru 12675 points

Part Number: DS90UB926Q-Q1

Dear SIr

We have project use 4pcs DS90UB926 as below system structure ,this is a function test board

I saw datasheet have a section mention the address 926 and 925 need to be the same

1. If use below structure ,All of the DS90UB926 / 925 address need to be the same ? is it correct ?

2. May I know I need to use I2C control DS90UB925 or DS90UB926? or the image can display normally without any I2C setting ? or something I need to take care ?

3. Do you have the layout guide for DS90UB925/926 repeater mode??

over 8 years ago

0 Palaniappan Manickam over 8 years ago

TI__Genius 10475 points

Hello, we received your question and this has been assigned for someone to look at.

0 Kai Hsiao over 8 years ago in reply to Palaniappan Manickam

Guru 12675 points

Dear Manickam

OK!! Looking forward your reply

Thanks

0 Steven(Shenzhen) Shi over 8 years ago in reply to Kai Hsiao

TI__Mastermind 30515 points

Hi Kai,

comments shown as below:

1. If use below structure ,All of the DS90UB926 / 925 address need to be the same ? is it correct ?

A: NOT, Each Transmitter and Receiver must have an unique I2C address.

2. May I know I need to use I2C control DS90UB925 or DS90UB926? or the image can display normally without any I2C setting ? or something I need to take care ?

A: dependent on your application, the repeater can work without register setting. please see repeater description on page25 of UB925.

3. Do you have the layout guide for DS90UB925/926 repeater mode??

A: no special layout request, pls follow up high speed layout rule.

regards,

Steven

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DS90UB926Q-Q1: Address question