SN75DP159: Schematics Review

Shifali N

Part Number: SN75DP159

Hi ,

I am using SN75DP159RGZT in my project. I have attached the schematics. Can someone please review the schematics and let us know your feedbacks on the same.0218.HDMI Out.pdf

over 4 years ago

0 David (ASIC) Liu over 4 years ago

TI__Guru**** 176811 points

Hi,

Please see my review comment. I also send this thread to our level shifter team and ask them to review your level shifter implementation.

0218.HDMI Out_TI_Reviewed_07012021.pdf

Thanks

David

0 Dylan Hubbard over 4 years ago in reply to David (ASIC) Liu

TI__Mastermind 45725 points

Hey Shifali,

I have reviewed the level shifter circuits and see no issues.

0 Shifali N over 4 years ago in reply to Dylan Hubbard

Expert 2145 points

Hi,

Thankyou for sharing the feedback.

1.The document states populate them with 4.7K. Do you mean 4.7kohm pullup resistor for SCL_CTL and SDA_CTL.

2. Also may I know why the significance of why TX_TERM should be left floating

0 Dylan Hubbard over 4 years ago in reply to Shifali N

TI__Mastermind 45725 points

Hey Shifali,

I moved this thread back to the original team to help with your additional questions.

0 David (ASIC) Liu over 4 years ago in reply to Dylan Hubbard

TI__Guru**** 176811 points

Hi Shifali,

1. Correct, I will not leave SCL_CTL and SDA_CTL floating. Having 4.7k pullup on them to 3.3V will terminate both pins.

2. Leave TX_TERM pin floating so the DP159 can automatically set the transmitter termination base on the data rate.

Thanks

David

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SN75DP159: Schematics Review