Texas Instruments SCAU020 manual Contents

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Contents

1	General Description		5
2	Signal Path and Control Circuitry		6
3	Block Description		7
	3.1	Block A	7
	3.2	Block B	7
	3.3	Block C	7
	3.4	Block D	7
4	Software-Selectable Options		7
5	Installing the Software GUI and USB Driver		8
6	ChronosGUI		9
	6.1	Using Software-Enabled Automatic PLL Selection	9
	6.2	Manual PLL Block Selection (Advanced Control)	11
7	Configuring the Board		13
	7.1	Programming and Testing Configuration (USB Cable Attached)—Default Configuration	13
	7.2	Programming Configuration (USB Cable Attached)	13

7.3Testing Configuration from a Saved Configuration (with USB Cable Removed After

	Programming)	13
8	Schematics and Layout	14
Important Notices		20

SCAU020 –March 2007

Table of Contents

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Contents Users Guide Submit Documentation Feedback Contents List of Figures General Description CDCE421EVM Evaluation Board FeaturesCDCE421EVM Programming Blocks Signal Path and Control CircuitryBlock D Block aBlock B Block CSoftware Installation Screen Installing the Software GUI and USB DriverStore Crystal Frequency Using Software-Enabled Automatic PLL SelectionIC Block Configuration and Input Calculator ChronosGUIOutput Calculator and Apply PLL Settings PLL Bandwidth SelectWrite to CDCE421 Eeprom Chronos GUI-Manual PLL Block Selection Pop-Up Manual PLL Block Selection Advanced ControlSection Function Software Settings DescriptionProgramming Configuration USB Cable Attached Configuring the BoardCDCE421EVM Block Switch Off Schematics and LayoutCDCE421EVM Board Schematic CDCE421EVM Board-Block a Schematic CDCE421EVM Board-Block B Schematic CDCE421EVM Board-Block C Schematic CDCE421EVM Board-Block D Schematic FCC Warning Evaluation BOARD/KIT Important NoticeImportant Notice