Article ID: 000075095 Content Type: Troubleshooting Last Reviewed: 03/16/2023

What is the frequency range for the DCLK configuration internal oscillator, in Cyclone® IV devices?

Environment

BUILT IN - ARTICLE INTRO SECOND COMPONENT
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:

OscillatorMinimumTypicalMaximumUnit
40 MHz203040MHz
20 MHz101520MHz

 

 

Resolution

This information has been included in the most recent version of the Cyclone® IV Device Handbook.

Related Products

This article applies to 2 products

Cyclone® IV GX FPGA
Cyclone® IV E FPGA