Dear Team,
I am using DS90UH941ASRTDRQ1 in my design.
This is connected to SC206E from Quectel.
Please see the details of SC206E DSI interface below.
I am attaching the schematic along with this mail. Could you please review the same.
1) DOUT0+ and DOUT0- will be going to a connector. Do we need to place ESD diodes in that path
2) Please check the PoC circuit also. Hope it works
Regards
HARI
Hi Hari,
Please see schematic review attached.
1) DOUT0+ and DOUT0- will be going to a connector. Do we need to place ESD diodes in that path
We don't have a diode placement as part of UB941AS Dout data-path for this device. I have seen it in our newer devices but you would need to do further characterization to validate whether a diode would impact your signal integrity for this system.
EVM example:
2) Please check the PoC circuit also. Hope it works
For PoC network on the IVI devices. TI has never run extensive test/validation for PoC with 94x. In theory it is possible to implement PoC similar to what is done on our camera products such as DS90UB953-Q1 or DS90UB954-Q1, but the operating frequency ranges including the back channel data rate and forward channel data rates are different, and care must be taken to provide extremely high impedance along the PoC path to signals in the bandwidth of the FPD-Link FC/BC for PoC to work effectively. Since this has not been validated by TI, we can not provide direct guidance on implementation, and the validation of any PoC implementation here would fall under the responsibility of the customer.
Regards,
Fadi A.
