New Contributor
New ContributorHi Eng Wei,
You only answered question 7.
If you don't know the answers for questions 1 to 6, please ask someone who knows, and get back to me.
Here are my questions again:
My 5AGXFB7H4F35C4 receives a 125MHz, ideal reference clock.
Using the internal PLL, I want to generate a 500MHz sampling clock for controlling 8 ADC chips.
1. What is the maximum clock frequency coming out of this device in LVDS? It's not through the ALTLVDS.
2. What would be the jitter?
3. What setting should I use, and what output pin for best performance? Please, give example of pin number and setting.
I also want to send a 2ns wide SYNC pulse on 8 outputs.
4. What would be the skew between the 8 outputs?
5. What is the minimum pulse width for LVDS outputs?
6. What setting should I use, and what pins for best performance? Please, give example of pin number and setting.
Thanks,
Mircea
Frequent ContributorHi Mircea
If you aren't using LVDS SERDES IP, then you shall refer to PLL spec (Table 36) in the same document.
For differential signal input/output pins, you should always pick from DIFFIO_RX* or DIFFIO_TX* from the list, depends on which IO banks you are using. The min pulse width depends on the max freq achievable in your design.
For clock skew specific question, I would suggest you to file another request and timing expert will be able to assist you.
Thanks.
Eng Wei
Frequent ContributorHi Mircea
I hope you are doing well. Since there is no further question, this thread will be transitioned to community support. If you have a new question, feel free to open a new thread to get the support from Intel experts. Otherwise, the community users will continue to help you on this thread. Thank you.
Eng Wei
