Altera PowerPlay Early Power Estimator User Manual
Page 37
Figure 3-20: PLL Worksheet of the PowerPlay EPE Spreadsheet
Table 3-10: PLL Worksheet Information
Column Heading
Description
Module
Specify a name for the PLL in this column. This is an optional value.
PLL Type
Select whether the PLL is a Fractional, Left/Right, Top/Bottom, or an
LVDS PLL. This option is not applicable for all device families.
# PLL Blocks
Enter the number of PLL blocks with the same specific output
frequency and VCO frequency combination.
# DPA Buses
Enter the number of DPA buses in use. DPA is only available for LVDS
PLLs. This option is not applicable for all device families.
Output Freq (MHz)
Enter the maximum output frequency of the PLL (in MHz). The
maximum output frequency is reported in the Output Frequency
column of the Quartus II Compilation Report. In the Compilation
Report, select Fitter and click Resource Section. Select PLL Usage and
click Output Frequency.
VCO Freq (MHz)
Enter the internal VCO operating frequency for this module. The
LVDS PLL drives the LVDS clock tree and DPA bus at this frequency.
This frequency includes the VCO post scale counter.
Total Power (W)
Shows the estimated combined power for V
CCA
and V
CCD
(in watts),
based on the maximum output frequency and the VCO frequency you
entered. This value is automatically calculated.
User Comments
Enter any comments. This is an optional entry.
UG-01070
2015.01.20
PLL Worksheet
3-27
PowerPlay Early Power Estimator Worksheets
Altera Corporation