Texas Instruments CDCM7005 manual Functional Description, Software Installation

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Functional Description

4.1 Functional Description

Programming software here as described is intended for programming the in- ternal control register of the CDCM7005. The software runs under Win- dows98, NT, 2000, and XP. A quick installation is required prior to use. See the Software Installation section.

There are several cases where programming is mandatory.

As a rule of thumb here are some examples:

-Use of active loop filter

-Change of divider ratio or disable of certain LVPECL/LVCMOS outputs

-Select between LVPECL or LVCMOS output

-Change of phase offset, (Delay M/N), or selection of 90’ or 180’ phase shift

-Change of charge pump output current.

-Widening the lock detect window

Figure 4−1. Screen View

4.2 Software Installation

Follow the steps below in order to install the SPI control software:

1)Run program setup.exe in the Installer folder

2)Reboot your computer

3)Run the Software from Start −> Programs −> CDCM7005_EVM −> CDCM7005_EVM

4-2

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Contents User’s Guide Important Notice EVM Important Notice EVM Warnings and Restrictions Read This First About This ManualContents Figures TablesIntroduction TopicCDCM7005 Functional Block Diagram Quick Start EVM Hardware TopicBoard View and Connector Location Hardware ConfigurationPower Supply P1, P2 Onboard Switches and Indicators SW1−SW2, D1−D4Programming Interfaces J30, J31 Loop Filter J32−J34Vcxo Inputs and Outputs J16−J18 AC-Coupling at Priref C1, R4, R6 and Secref C5, R13, R15Serial Peripheral Interface SPI Software Software Installation Functional DescriptionApplication Circuit Diagram Application Circuit Diagram Passive Loop FilterExternal Active Loop Filter Using OPA341 CDCM7005Parts List, Board Layout, and Schematics Parts List QTYPart Number Designator ERJ−2RKF1500X Board Layout −1. Component View and Silkscreen Top View−2. Component View and Silkscreen Bottom View −3. Top Layer View −4. Bottom Layer View −5. Ground Plane View Schematics −6. Power Layer ViewVe RParts List List PartsList List Ctrlle Ctrlclk Ctrldata