Quectel UC15 Hardware Design page 8

UMTS/HSDPA Module Series
UC15 Hardware Design
Figure Index
FIGURE 1: FUNCTIONAL DIAGRAM ............................................................................................................... 15
FIGURE 2: PIN ASSIGNMENT (TOP VIEW) .................................................................................................... 18
FIGURE 3: UART SLEEP APPLICATION ......................................................................................................... 26
FIGURE 4: USB APPLICATION WITH SUSPEND FUNCTION ........................................................................ 26
FIGURE 5: USB SLEEP APPLICATION WITHOUT SUSPEND FUNCTION .................................................... 27
FIGURE 6: STAR STRUCTURE OF THE POWER SUPPLY............................................................................ 29
FIGURE 7: REFERENCE CIRCUIT OF POWER SUPPLY .............................................................................. 29
FIGURE 8: TURN ON THE MODULE BY DRIVING CIRCUIT.......................................................................... 31
FIGURE 9: TURN ON THE MODULE BY KEYSTROKE .................................................................................. 31
FIGURE 10: TIMING OF TURNING ON MODULE ........................................................................................... 32
FIGURE 11: TIMING OF TURNING OFF MODULE .......................................................................................... 33
FIGURE 12: REFERENCE CIRCUIT OF RESET_N ........................................................................................ 34
FIGURE 13: TIMING OF RESETTING MODULE ............................................................................................. 35
FIGURE 14: CONNECTION OF FULL FUNCTIONAL UART PORT ................................................................ 36
FIGURE 15: CONNECTION OF THREE LINES UART PORT ......................................................................... 37
FIGURE 16: CONNECTION OF UART PORT WITH HARDWARE FLOW CONTROL .................................... 37
FIGURE 17: 3.3V LEVEL MATCH CIRCUIT ..................................................................................................... 38
FIGURE 18: 5V LEVEL MATCH CIRCUIT ........................................................................................................ 38
FIGURE 19: RS232 LEVEL SHIFT CIRCUIT .................................................................................................... 39
FIGURE 20: RI BEHAVIOR ............................................................................................................................... 40
FIGURE 21: MICROPHONE REFERENCE DESIGN FOR AIN1&AIN2 ........................................................... 42
FIGURE 22: REFERENCE DESIGN FOR AOUT1 ........................................................................................... 43
FIGURE 23: REFERENCE DESIGN WITH AN AMPLIFIER FOR AOUT1 ....................................................... 43
FIGURE 24: REFERENCE DESIGN FOR AOUT2 ........................................................................................... 44
FIGURE 25: REFERENCE DESIGN WITH AN AMPLIFIER FOR AOUT2 ....................................................... 44
FIGURE 26: REFERENCE DESIGN FOR AN EARPHONE ............................................................................. 45
FIGURE 27: PRIMARY MODE TIMING ............................................................................................................ 46
FIGURE 28: AUXILIARY MODE TIMING .......................................................................................................... 47
FIGURE 29: REFERENCE CIRCUIT OF PCM APPLICATION WITH AUDIO CODEC .................................... 48
FIGURE 30: REFERENCE CIRCUIT OF THE 8-PIN USIM CARD .................................................................. 49
FIGURE 31: REFERENCE CIRCUIT OF THE 6-PIN USIM CARD .................................................................. 50
FIGURE 32: MOLEX 91228 USIM CARD HOLDER ......................................................................................... 51
FIGURE 33: AMPHENOL C707 10M006 512 2 USIM CARD HOLDER ........................................................... 52
FIGURE 34: REFERENCE CIRCUIT OF USB APPLICATION ......................................................................... 53
FIGURE 35: TEST POINTS OF FIRMWARE UPGRADE ................................................................................. 54
FIGURE 36: REFERENCE CIRCUIT OF THE NETWORK INDICATOR .......................................................... 56
FIGURE 37: REFERENCE CIRCUIT OF THE STATUS ................................................................................... 57
FIGURE 38: REFERENCE CIRCUIT OF ANTENNA INTERFACE ................................................................... 59
FIGURE 39: DIMENSIONS OF THE UF.L-R-SMT CONNECTOR (UNIT: MM) ................................................ 60
FIGURE 40: MECHANICALS OF UF.L-LP CONNECTORS (UNIT: MM) .......................................................... 60
FIGURE 41: SPACE FACTOR OF MATED CONNECTOR (UNIT: MM) ........................................................... 61
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