Texas Instruments CDCM7005 User Manual

Page 16

Functional Description

4-2

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