SCMF Cardinal Components Inc., SCMF Datasheet - Page 8

• Manufacturer Part Number: SCMF
• Description: EVALUATION BOARD
• Manufacturer: Cardinal Components Inc.

Specifications of SCMF

• Main Purpose: Timing, Reconfigurable Oscillators
• Utilized Ic / Part: Cardinal CDP Oscillators
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -

2.1.1 Entering PLL Frequencies
The first step is to enter a PLL frequency. Allowable PLL frequencies are
from 100 MHz to 400 MHz.
Note:
The calculation of a PLL frequency is very complex. Not all
frequencies have solutions. If a PLL frequency cannot be calculated, an error
message will be displayed.
Suppose we need output frequencies of 155.52 MHz, 38.88 MHz,
53.125 MHz and 106.25 MHz. Since 155.52 MHz can be divided by 4 to get
38.88 MHz and 106.25 can be divided by 2 to get 53.125, we will be using
155.52 and 106.25 as our PLL frequencies. We can now enter PLL 1 as
155.52 and PLL 2 as 106.25. Enter these frequencies into the PLL1 and
PLL2 box and hit the Calculate button. Notice that as we enter new numbers
the Calculate button turns green indicating that we have made some changes.
The screen should look like this.