User's Manual

Note d‘étude / Technical document :
URD1– OTL 5696.1– 003 / 72361 Edition 02
HILO 3G Application Note
17 January 2011 - Page 4 / 38
6.3 Layout ................................................................................................................................................................... 32
6.4 Mechanical Surrounding ....................................................................................................................................... 32
6.5 Other Recommendation—test for production/design ........................................................................................... 32
7. Audio Integration .......................................................................................................................................................... 32
7.1 Mechanical integration and acoustics ................................................................................................................... 32
7.2 Electronics and layout ........................................................................................................................................... 33
8. Recommendations on layout of customer‘s board ........................................................................................................ 33
8.1 General recommendations on layout .................................................................................................................... 33
8.1.1. Ground .......................................................................................................................................................... 33
8.1.1.1 Ground layout guidelines .................................................................................................................................. 33
8.1.1.2 Digital ground ................................................................................................................................................... 33
8.1.1.3 Analog/RF ground ............................................................................................................................................ 33
8.1.2 Power supplies .............................................................................................................................................. 34
8.1.3 Clocks ........................................................................................................................................................... 34
8.1.4 Data bus and other signals ............................................................................................................................ 34
8.1.5 Radio ............................................................................................................................................................. 34
8.1.6 Audio ............................................................................................................................................................ 34
8.1.7 Shielding ....................................................................................................................................................... 35
8.2 Example of layout for customer‘s board ............................................................................................................... 35
9. Label ............................................................................................................................................................................. 36