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HE863 Family Hardware User Guide
1vv0300891 Rev.6
- 2011-04-14
Reproduction forbidden without Telit Communications S.p.A’s. written authorization - All Rights
Reserved. Page 5 of 92
9.1. MODEM SERIAL PORT.......................................................................................................................................61
9.2. RS232
LEVEL TRANSLATION............................................................................................................................63
10. USBPORT....................................................................................................................................................65
10.1. USB
TRANSCEIVER SPECIFICATIONS (TBD)....................................................................................................65
11. AUDIOSECTION(HE863EUR/EUG/NAR/NAG/AUGONLY)............................................................................66
11.1. S
ELECTION MODE..............................................................................................................................................66
11.2. M
ICROPHONE CHARACTERISTICS.....................................................................................................................68
11.2.1. Input Lines (MT and HF) Characteristics...........................................................................................68
11.3. OUTPUT
LINES (SPEAKER)...........................................................................................................................68
11.3.1. Output Lines Characteristic..................................................................................................................69
12. GENERALPURPOSEI/O................................................................................................................................71
12.1. L
OGIC LEVEL SPECIFICATIONS.........................................................................................................................73
12.2. U
SING A GPIO PAD AS INPUT..........................................................................................................................73
12.3. U
SING A GPIO PAD AS OUTPUT......................................................................................................................73
12.4. U
SING THE ALARM OUTPUT GPIO6.................................................................................................................74
12.5. I
NDICATION OF NETWORK SERVICE AVAILABILITY...........................................................................................74
12.6. RTC
BYPASS OUT............................................................................................................................................75
12.7. VAUX1
POWER OUTPUT..................................................................................................................................75
13. DACANDADCSECTION................................................................................................................................77
13.1. DAC
CONVERTER.............................................................................................................................................77
13.1.1. Description..............................................................................................................................................77
13.1.2. Enabling DAC.........................................................................................................................................77
13.1.3. Low Pass Filter Example......................................................................................................................78
13.2. ADC
CONVERTER.............................................................................................................................................78
13.2.1. Description..............................................................................................................................................78
13.2.2. Using ADC Converter............................................................................................................................78
14. MOUNTINGTHEHE863FAMILYONYOURBOARD........................................................................................79
14.1. G
ENERAL...........................................................................................................................................................79
14.1.1. Recommended footprint for the application.......................................................................................79
14.1.2. Suggested Inhibit Area..........................................................................................................................80
14.1.3. Stencil......................................................................................................................................................80
14.1.4. PCB Pad Design....................................................................................................................................80
14.1.5. Solder paste...........................................................................................................................................81
14.1.6. HE863 Family Solder Reflow...............................................................................................................82
14.2. DEBUG
OF THE HE863 FAMILY IN PRODUCTION...................................................................................83
15. SIMHOLDERDESIGNGUIDE.........................................................................................................................84
15.1. O
VERVIEW.........................................................................................................................................................84
15.2. SIM
INTERFACE.................................................................................................................................................85
16. ANTENNADETECTIONDESIGNGUIDE...........................................................................................................87
17. CONFORMITYASSESSMENTISSUES..............................................................................................................88
18. SAFETYRECOMMENDATIONS......................................................................................................................91