Quectel LTE OPEN EVB - Page 7

LTE Module Series
LTE OPEN EVB User Guide
LTE_OPEN_EVB_User_Guide 6 / 62
Figure Index
FIGURE 1: LTE OPEN EVB INTERFACE OVERVIEW..................................................................................... 13
FIGURE 2: LTE OPEN EVB TOP VIEW ............................................................................................................ 16
FIGURE 3: LTE OPEN EVB KIT ........................................................................................................................ 17
FIGURE 4: EVB KIT ACCESSORIES ............................................................................................................... 18
FIGURE 5: POWER SUPPLY SCHEMATIC FOR LTE OPEN EVB .................................................................. 21
FIGURE 6: POWER INTERFACES ................................................................................................................... 21
FIGURE 7: POWER PLUG DESIGN ................................................................................................................. 21
FIGURE 8: CONNECTION BETWEEN LTE-QUECOPEN TE-A AND EVB ...................................................... 22
FIGURE 9: SIMPLIFIED FC20-TE-A/AF20-TE-A INTERFACE SCHEMATIC .................................................. 23
FIGURE 10: SIMPLIFIED SDC1 INTERFACE SCHEMATIC ............................................................................ 23
FIGURE 11: CONNECTION BETWEEN FC20-TE-A AND EVB ....................................................................... 24
FIGURE 12: WI-FI & ETHERNET FUNCTION GPIO CONFIGURATION......................................................... 25
FIGURE 13: REFERENCE DESIGN FOR CONNECTION BETWEEN CODEC BOARD AND EVB ............... 26
FIGURE 14: CONNECTION BETWEEN CODEC BOARD AND EVB .............................................................. 27
FIGURE 15: CODEC FUNCTION GPIO CONFIGURATION ............................................................................ 27
FIGURE 16: REFERENCE CIRCUIT DESIGN FOR LOUDSPEAKER INTERFACE J0805 ............................ 28
FIGURE 17: REFERENCE CIRCUIT DESIGN FOR EARPHONE INTERFACE J0802 ................................... 28
FIGURE 18: PIN ASSIGNMENT OF J0802 ....................................................................................................... 29
FIGURE 19: SKETCH OF AUDIO PLUG .......................................................................................................... 30
FIGURE 20: REFERENCE CIRCUIT DESIGN FOR HANDSET INTERFACE J0801 ...................................... 30
FIGURE 21: PIN ASSIGNMENT OF J0801 ....................................................................................................... 31
FIGURE 22: SIMPLIFIED INTERFACE SCHEMATIC FOR U(SIM) CARD CONNECTOR J0901 ................... 32
FIGURE 23: PIN ASSIGNMENT OF J0901 ....................................................................................................... 32
FIGURE 24: (U)SIM HOT-PLUG GPIO CONFIGURATION .............................................................................. 33
FIGURE 25: SIMPLIFIED INTERFACE SCHEMATIC FOR SD CARD INTERFACE J0701, J0702 ................. 34
FIGURE 26: PIN ASSIGNMENT OF J0701 ....................................................................................................... 34
FIGURE 27: PIN ASSIGNMENT OF J0702 ....................................................................................................... 34
FIGURE 28: EMMC DEVICE ............................................................................................................................. 35
FIGURE 29: SD CARD FUNCTION GPIO CONFIGURATION ......................................................................... 37
FIGURE 30: EMMC FUNCTION GPIO CONFIGURATION .............................................................................. 37
FIGURE 31: UART BLOCK DIAGRAM ............................................................................................................. 38
FIGURE 32: PIN ASSIGNMENT OF J0501 ....................................................................................................... 39
FIGURE 33: PIN ASSIGNMENT OF J0502 ....................................................................................................... 39
FIGURE 34: PIN ASSIGNMENT OF J0503 ....................................................................................................... 40
FIGURE 35: COM (MAIN) & COM (UART1) FUNCTION GPIO CONFIGURATION ........................................ 41
FIGURE 36: SPI FLASH DEVICE ..................................................................................................................... 42
FIGURE 37: SPI FLASH FUNCTION GPIO CONFIGURATION ....................................................................... 42
FIGURE 38: EEPROM DEVICE ........................................................................................................................ 43
FIGURE 39: EEPROM FUNCTION GPIO CONFIGURATION .......................................................................... 43
FIGURE 40: S0201/S0701/S1001 SWITCH ..................................................................................................... 44
FIGURE 41: S0301/S0401 SWITCH AND S0403/S0402 BUTTON .................................................................. 44