A single clock source should not be used to drive multiple clock inputs for a high-performance processor device, such as multicore ARM Cortex-A15 based 66AK2Ex and AM5K2Ex processors, since excessive loading, reflections, and noise will negatively impact performance. These can be avoided through the use of a differential clock tree instead of a single clock source. This design demonstrates clock generation for the 66AK2Ex and AM5K2Ex families of KeyStone II ARM A15 + DSP and ARM-only multicore processors by use of a differential clock tree. This design shows a complete clock tree resulting in generation of all clocks needed for SoC cores and interfaces.
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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Reference design overview and verified performance test data
Detailed schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
Files used for 3D models or 2D drawings of IC components
Design file that contains information on physical board layer of design PCB
Design file that contains information on physical board layer of design PCB
PCB layer plot file used for generating PCB design layout
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| Design guide | Reference Clock Generation for 66AK2E0x and AM5K2E0x Design Guide | Oct. 08, 2014 | ||
| Application note | Hardware Design Guide for KeyStone II Devices | Mar. 24, 2014 |
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