Knowledge Base Article
What is the frequency range for the DCLK configuration internal oscillator, in Cyclone® IV devices?
Description
The Cyclone® IV Device Handbook does not contain the frequency range for the internal oscillator that derives the DCLK output in Active Serial (AS) and Active Parallel (AP) configuration modes.
The table below contains the range for the two frequency options:
| Oscillator | Minimum | Typical | Maximum | Unit |
| 40 MHz | 20 | 30 | 40 | MHz |
| 20 MHz | 10 | 15 | 20 | MHz |
Resolution
This information has been included in the most recent version of the Cyclone® IV Device Handbook.
Updated 3 months ago
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