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Smart Module Series
Figure Index
Figure 1: Functional Diagram ..................................................................................................................... 17
Figure 2: Pin Assignment (Top View) ......................................................................................................... 18
Figure 3: Schematic Diagram of Connection Between Battery and Module ............................................. 34
Figure 4: Reference Design of Power Supply ............................................................................................ 35
Figure 5: Power Supply Voltage Drop Example ......................................................................................... 36
Figure 6: Reference Circuit of Power Supply ............................................................................................. 36
Figure 7: Turn On Module with Open Collector Driver ............................................................................... 37
Figure 8: Turn On Module Using Button .................................................................................................... 37
Figure 9: Turn-on Timing ............................................................................................................................ 38
Figure 10: Reference Circuit of Automatic Turn-on.................................................................................... 39
Figure 11: Forced Turn-off Timing .............................................................................................................. 39
Figure 12: RTC Powered by Rechargeable Button Battery ....................................................................... 40
Figure 13: Reference Circuit of USB1 Type-C Interface ............................................................................ 43
Figure 14: Reference Design of USB1 Micro Interface ............................................................................. 44
Figure 15: Reference Design of USB2 Micro Interface ............................................................................. 44
Figure 16: Reference Circuit of Level Translator Chip (For UART0) ......................................................... 46
Figure 17: RS-232 Level Match Circuit (For UART0) ................................................................................ 47
Figure 18: Reference Circuit of (U)SIM Interfaces with 8-Pin (U)SIM Card Connector ............................ 48
Figure 19: Reference Circuit of (U)SIM Interfaces with 6-Pin (U)SIM Card Connector ............................ 49
Figure 20: Reference Circuit for SD Card Interface ................................................................................... 50
Figure 21: Reference Circuit Design for LCM Interface ............................................................................. 56
Figure 22: Reference Cicuit for LCM External Backlight Driver................................................................. 57
Figure 23: Reference Circuit Design for Touch Panel Interface ................................................................ 58
Figure 24: Reference Circuit Design for Dual-Camera Applications ......................................................... 61
Figure 25: Reference Circuit Design for Three-Camera Applications ....................................................... 62
Figure 26: Reference Circuit Design for Main Microphone ........................................................................ 66
Figure 27: Reference Circuit Design for Auxiliary Microphone .................................................................. 67
Figure 28: Reference Design for Earpiece Interface ................................................................................. 67
Figure 29: Reference Circuit Design for Headset Interface ....................................................................... 68
Figure 30: Reference Circuit Design for Loudspeaker Interface ............................................................... 68
Figure 31: Reference Circuit Design for Download Interface .................................................................... 70
Figure 32: Reference Circuit Design for GNSS Passive Antenna ............................................................. 72
Figure 33: Reference Circuit Design for GNSS Active Antenna ................................................................ 73
Figure 34: Reference Circuit Design for Cellular Antennas ....................................................................... 77
Figure 35: Reference Circuit Design for Wi-Fi/Bluetooth Antenna ............................................................ 81
Figure 36: Microstrip Design on a 2-layer PCB ......................................................................................... 82
Figure 37: Coplanar Waveguide Design on a 2-layer PCB ....................................................................... 82
Figure 38: Coplanar Waveguide Design on a 4-layer PCB (Layer 3 as Reference Ground) .................... 83
Figure 39: Coplanar Waveguide Design on a 4-layer PCB (Layer 4 as Reference Ground) .................... 83
Figure 40: Dimensions of U.FL-R-SMT Connector (Unit: mm) .................................................................. 85
Figure 41: Mechanicals of U.FL-LP Connectors ........................................................................................ 85
Figure 42: Space Factor of Mated Connector (Unit: mm) .......................................................................... 86
SC200K_Series_Hardware_Design
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