Rainbow-electronics GM862-QUAD-PY Manuel d'utilisateur Page 17
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- Table des matières
- MARQUE LIVRES
- Contents 2
- 1 Overview 6
- 2 Dimensions 7
- 3.1 Description 8
- 3.2 Connectors Position 8
- 3.3.2 Antenna Connector 12
- 4 Antenna 13
- For 2,0V signals: 14
- 4.3.1 Reset signal 15
- 5 Hardware Commands 16
- 5.2.1 Hardware Shutdown 18
- RESET# 19
- Unconditional Restart 19
- 6 Power Supply 21
- 6.2 General Design Rules 22
- 7 Serial Ports 30
- 7.1 Level translation 32
- 8 Audio Section Overview 36
- GM862-QUAD / 37
- GM862-QUAD / PY 37
- Audio Paths 37
- Requirements 38
- 76,820 − 39
- 76,8207,49 −=++− 40
- G−=+− 209,40 40
- 8.2 General Design Rules 41
- 8.3 Other Considerations 41
- 8.4 Microphone Biasing 42
- 8.5 Microphone Buffering 45
- 9 OUTPUT LINES (Speaker) 50
- 9.3 General Design Rules 52
- 9.4 Handset Earphone Design 53
- GM862-QUAD / P 54
- 10 General Purpose I/O 56
- 10.1 GPIO Logic levels 58
- 11 ADC section 61
- 13.2 Precautions 65
- 15 SAFETY RECOMMANDATIONS 67
- 16 Document Change Log 68
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