MEIG SLM500, Руководство по конструкции аппаратуры

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MeiG Smart product technical information
SLM500 Hardware Design Guide Page 5
Contents
1. Introduction .......................................................................................................................................................... 8
2. Module overview .................................................................................................................................................. 8
2.1 Summary of features ...................................................................................................................................... 9
2.2 Block diagram .............................................................................................................................................. 11
3. Module Package ..................................................................................................................................................... 12
3.1.Pin distribution diagram ............................................................................................................................. 12
3.2. Pin definitions .............................................................................................................................................. 13
3.3. Mechanical Dimensions .............................................................................................................................. 27
4. Interface application .............................................................................................................................................. 29
4.1. Power Supply .............................................................................................................................................. 29
4.1.1. Power Pin ................................................................................................................................................. 31
4.2. Power on and off ......................................................................................................................................... 31
4.2.1. Module Boot ............................................................................................................................................. 31
4.2.2. Module Shutdown .................................................................................................................................... 33
4.2.2.1 PWRKEY Shutdown ............................................................................................................................. 33
4.2.3.Module Reset ............................................................................................................................................. 33
4.3. VCOIN Power ............................................................................................................................................. 34
4.4. Power Output .............................................................................................................................................. 35
4.5. Serial Port .................................................................................................................................................... 35
4.6. MIPI Interface ............................................................................................................................................. 37
4.6.1. LCD Interface .......................................................................................................................................... 38
4.6.2.MIPI Camera Interface ........................................................................................................................... 40
4.7.CapacitiveTouch Interface .......................................................................................................................... 43
4.8.Audio Interface ............................................................................................................................................ 44
4.8.1Receiver Interface Circuit ......................................................................................................................... 44
4.8.2 Microphone receiving Circuit ................................................................................................................. 45
4.8.3.Headphone Interface Circuit ................................................................................................................... 45
4.8.4.Speaker Interface Circuit ......................................................................................................................... 46
4.8.5.I2S Interface .............................................................................................................................................. 46
4.9. USB Interface .............................................................................................................................................. 46
4.9.1. USB OTG .................................................................................................................................................. 47
4.10. Charging Interface .................................................................................................................................... 48
4.10.1. Charging Detection ................................................................................................................................ 49
4.10.2. Charge Control ...................................................................................................................................... 49
4.10.3. BAT_CON_TEM ................................................................................................................................... 49
4.11 UIM Card Interface ................................................................................................................................... 49
4.12. SD Card Interface ..................................................................................................................................... 50
4.13 I2C Bus Interface ....................................................................................................................................... 51
4.14 Analog to Digital Converter (ADC) .......................................................................................................... 51
4.15. PWM .......................................................................................................................................................... 51
4.16. Motor ......................................................................................................................................................... 52
4.17 Antenna Interface ...................................................................................................................................... 52
4.17.1 Main Antenna .......................................................................................................................................... 52
4.17.2 DRX Antenna .......................................................................................................................................... 53
4.18.3 GPS Antenna ........................................................................................................................................... 54
4.18.4 WiFi/BT antenna ..................................................................................................................................... 55
5.PCB Layout ............................................................................................................................................................. 56
5.1. Module PIN distribution ............................................................................................................................ 56
5.2. PCB Layout Principles ............................................................................................................................... 56
5.2.1. Antenna ..................................................................................................................................................... 56
5.2.2 Power Supply ............................................................................................................................................. 57
5.2.3. SIM Card .................................................................................................................................................. 57
5.2.4. MIPI .......................................................................................................................................................... 58
5.2.5. USB ............................................................................................................................................................ 58
5.2.6.Audio .......................................................................................................................................................... 58
5.2.7. Other ......................................................................................................................................................... 59
6. Electrical, Reliability ............................................................................................................................................. 61
6.1 Absolute Maximum ...................................................................................................................................... 61
6.2 Working Temperature ................................................................................................................................. 61