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Altera_Forum
Honored Contributor
10 years agoMaximum current strength supported by pin SDI_HSMC_CLK for SDI HSMC daughter card
Hi, Anyone know about the maximum current strength supported by pin SDI_HSMC_CLK(input) for SDI HSMC daughter card? In Quartus II Pin Planner, the default current strength of HSMC connector(HSM...
Altera_Forum
Honored Contributor
10 years ago --- Quote Start --- No, it won't damage the IC. 150uA is the maximum current the device will draw when powered under the conditions stated. Just make sure you have the appropriate I/O standard selected for 'HSMB_CLK_OUT_P2' in the I/O planner. Reduce the drive strength right down and increase it if the wave shape at the receiver looks a little tired. Cheers, Alex --- Quote End --- If the current supply to that pin is not high enough, is it will affect the performance to drive the clock cleaner? As for my case, by using 4mA for that pin, SD format video will have some glitches but not HD and 3G format. This issue is solved when I increase the current strength to 8mA. Any ideas on this? Thanks.