Product Info

Smart Module Series
SC200R Series Hardware Design
SC200R_Series_Hardware_Design 8 / 125
Figure Index
Figure 1: Functional Diagram ..................................................................................................................... 19
Figure 2: Pin Assignment (Top View) ......................................................................................................... 21
Figure 3: Voltage Drop Sample .................................................................................................................. 35
Figure 4: Star Structure of the Power Supply ............................................................................................. 36
Figure 5: Reference Circuit of Power Supply ............................................................................................. 37
Figure 6: Turn on the Module Using Driving Circuit ................................................................................... 38
Figure 7: Turn on the Module Using Keystroke ......................................................................................... 38
Figure 8: Timing of Turning on the Module ................................................................................................ 39
Figure 9: Timing of Turning off the Module ................................................................................................ 40
Figure 10: RTC Powered by Coin Cell ....................................................................................................... 40
Figure 11: Reference Design for Battery Charging Circuit ........................................................................ 43
Figure 12: USB Interface Reference Design (OTG Not Supported) .......................................................... 44
Figure 13: USB Interface Reference Design (OTG Supported) ................................................................ 45
Figure 14: Reference Circuit with Level Translator Chip (for UART5) ....................................................... 46
Figure 15: RS-232 Level Match Circuit (for UART5) ................................................................................. 47
Figure 16: Reference Circuit for (U)SIM Interface with an 8-pin (U)SIM Card Connector ........................ 48
Figure 17: Reference Circuit for (U)SIM Interface with a 6-pin (U)SIM Card Connector .......................... 49
Figure 18: Reference Circuit for SD Card Interface ................................................................................... 50
Figure 19: Reference Circuit for Motor Connection ................................................................................... 57
Figure 20: Reference Circuit Design for LCM Interface ............................................................................. 58
Figure 21: Reference Design for External Backlight Driving Circuit .......................................................... 59
Figure 22: Reference Circuit Design for TP Interface ................................................................................ 60
Figure 23: Reference Circuit Design for 3-Camera Applications ............................................................... 63
Figure 24: Reference Circuit Design for ECM Microphone Interface ........................................................ 67
Figure 25: Reference Circuit Design for MEMS Microphone Interface ..................................................... 68
Figure 26: Reference Circuit Design for Earpiece Interface ...................................................................... 68
Figure 27: Reference Circuit Design for Headphone Interface .................................................................. 69
Figure 28: Reference Circuit Design for Loudspeaker Interface ............................................................... 69
Figure 29: Reference Circuit Design for Emergency Download Interface ................................................. 70
Figure 30: Reference Circuit Design for Main and Rx-diversity Antenna Interfaces ................................. 81
Figure 31: Reference Circuit Design for Wi-Fi/BT Antenna ....................................................................... 82
Figure 32: Reference Circuit Design for GNSS Passive Antenna ............................................................. 83
Figure 33: Reference Circuit Design for GNSS Active Antenna ................................................................ 84
Figure 34: Microstrip Design on a 2-layer PCB ......................................................................................... 84
Figure 35: Coplanar Waveguide Design on a 2-layer PCB ....................................................................... 85
Figure 36: Coplanar Waveguide Design on a 4-layer PCB (Layer 3 as Reference Ground) .................... 85
Figure 37: Coplanar Waveguide Design on a 4-layer PCB (Layer 4 as Reference Ground) .................... 85
Figure 38: Dimensions of the U.FL-R-SMT Connector (Unit: mm) ............................................................ 87
Figure 39: Mechanicals of U.FL-LP Connectors ........................................................................................ 88
Figure 40: Space Factor of Mated Connectors (Unit: mm) ........................................................................ 88
Figure 41: Top and Side Dimensions ....................................................................................................... 108