Datasheet

DAC5681/81z/82z EVM Software www.ti.com
Table 8. CDCM7005 Register Configuration Software Functionality
Input
Subarea Name Description
Output
General Settings (1)
Output Settings Input Switches the display between the CDCM7005 output settings and advanced settings.
Select Buffer Mode when there is no VCXO installed or the VCXO is enabled. In this case the
CDCM7005 Operation Input CDCM7005 operates as a buffer. Select PLL Mode when a VCXO is being used by the
CDCM7005.
PLL Settings (2)
( Auto) M and N divider values are calculated automatically based on Reference and VCXO
M & N Selection Input
frequencies.
Ref. Freq. (MHz) Input Frequency of the reference oscillator given to the CDCM7005.
VCXO Freq. (MHz) Input Frequency of the VCXO used.
M Divider Input/Output M divider value.
N Divider Input/Output N divider value.
FB_MUX Input/Output Feedback MUX select.
Phase Shift Input Phase shift select.
Output frequency of the CDCM7005 based on the Reference and VCXO frequencies, and M and
Output Freq (MHz) Output
N values. If Output Freq differs from VCXO Freq, Output Freq displays using a red text.
Output Settings (3)
Y0-Y4 Dividers Input Selects the output dividers of the CDCM7005 outputs.
Y0-Y4 Levels Input Selects between CMOS or LVPECL levels of the CDCM7005 outputs.
Y0-Y4 States Input Selects the operating state of the CDCM7005 outputs.
SEND/SAVE Button Settings (4)
Send All Input Writes all registers to the DCDM7005 device.
Loads a DCDM7005 register configuration from a text file. Files need to consist of a single
Load Regs Input
column with the register values in hexadecimal format.
Save Regs Input Saves a DCDM7005 register configuration to a text file.
Advanced Settings (not shown)
Input CDCM7005 advanced registers. See the CDCM7005 data sheet (SCAS793 ) for more
Advanced Registers
information about these registers.
18 DAC5681/81z/82z EVM SLAU236A – November 2007 – Revised October 2008
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