ATSAM2195 ATMEL [ATMEL Corporation], ATSAM2195 Datasheet - Page 18

• Manufacturer Part Number: ATSAM2195
• Description: Audio Processing
• Manufacturer: ATMEL [ATMEL Corporation]

10. Recommended Board Layout
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ATSAM2195
Like all HCMOS high integration ICs, following simple rules of board layout is mandatory for reli-
able operations:
All GND, VD33, VD18, VA33, VA18 pins should be connected. A GND plane is strongly recom-
mended below the ATSAM2195. The board GND, VD33, VD18 distribution should be in grid
form. Recommended decoupling is 0.1 µF at each VD33, VD18, VA33, VA18 pin of the IC with
an additional 1µF-T between pins 30 and 31. Decoupling capacitors should be implemented
close to the IC.
The paths between the crystal and the ATSAM2195 should be short and shielded. The ground
return from the crystal compensation capacitors should be pin 31.
A specific AGND ground plane should be provided, which connects by a single trace to the GND
ground. No digital signals should cross the AGND plane.
• GND, VD33, VD18, VA33, VA18 distribution and decoupling
• Crystal
• Analog section
6308A–DRMSD–10-May-07