HD3SS3220: schematic

David Zhao

Intellectual 1820 points

Part Number: HD3SS3220

Hi Supporter

Please help confirm if below HD3SS3220 connection is ok. Thanks a lot!

1. SDA/SCL pull up use 2.2K resistor.

2. INT_N, VCONN, ID these three pins are pulled up to 1.8V

3. Only TX2 and RX1 has 220nf series cap. Other high speed pins doesnt have cap.

Regards

David

over 7 years ago

0 Luis Omar Moran over 7 years ago

TI__Genius 16150 points

Hi David,

1. The recommended value is 4.7k for SDA & SCL pins.
2. INT_N, VCONN and ID must be pulled-up to 3.3V through a 200k resistor for proper operation.
3. TX1 & TX2 should be have placed series capacitors.

Could you send me an e-mail to review your schematics?

omar.moran@ti.com

Best Regards,
Luis Omar Moran
High Speed Interface
SWAT Team

0 David Zhao over 7 years ago in reply to Luis Omar Moran

TI__Intellectual 1820 points

Hi Luis

Noted. I have sent schematic to your email. Please help review and comment. Thanks a lot!

Regards
David

Interface

Interface forum

HD3SS3220: schematic