topic Re: EM2120L01QI SYNC pin's capacitance in Graphics

EM2120L01QI SYNC pin's capacitance

xytech — Thu, 06 Jun 2019 18:53:36 GMT

Hi, we use FPGA to generate ONLY ONE external sync clock singal to feed all 15 pcs of EM2120 sync pins on our big power system, connected in daisy-chain topology.

Could you pls tell the SYNC pin's capacitance?

As the output current strength of FPGA pin is about only 4~8mA， we are not should whether it is enough to drive so many sync pins. We need to know the total capacitive load to decide whether a buffer IC should be inserted.

Re: EM2120L01QI SYNC pin's capacitance

xytech — Sat, 08 Jun 2019 19:10:12 GMT

close it. 10pF around.

and EM2120 sync function is OFF by default, need to be Enabled by I2C bus......

Re: EM2120L01QI SYNC pin's capacitance

Mostafa_Intel_AE — Fri, 21 Jun 2019 14:04:58 GMT

Hello Yi Xiao,

You are correct, and thanks for answering the case.

Regards,

mostafa

Re: EM2120L01QI SYNC pin's capacitance

xytech — Thu, 27 Jun 2019 07:35:05 GMT

Hi, mostafa,

coud you please help look on this question? Thanks.

https://forums.intel.com/s/question/0D50P00004MxMGQSA3/allowed-maximum-mechanical-pressure-when-mounting-heatsink-on-top-of-em2120l01qi