User Manual
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VII
Figures
Figure 1-1 Module’s application block diagram ............................................................................................................... 3
Figure 2-1 π shape matching network diagram ............................................................................................................... 9
Figure 2-2 Antenna interface diagram .............................................................................................................................. 10
Figure 2-3 RF test socket dimensions ................................................................................................................................ 11
Figure 4-1 Power & reset circuit reference design principle diagram ................................................................ 19
Figure 4-2 Power reference circuit ..................................................................................................................................... 20
Figure 4-3 Power-on/off time sequence .......................................................................................................................... 21
Figure 4-4 UART interface reference design diagram ................................................................................................ 22
Figure 4-5 UART1 DCE
－
DTE connection relationship diagram ....................................................................... 23
Figure 4-6 UART2 DCE
－
DTE connection relationship diagram ........................................................................... 24
Figure 4-7 SIM card circuit reference design diagram ............................................................................................... 25
Figure 4-8 Audio interface circuit reference design principle diagram .............................................................. 26
Figure 4-9 Charging interface circuit reference design principle diagram ....................................................... 27
Figure 5-1 Furnace temperature curve .......................................................................................
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Figure 6-1 MG2639_V3 appearance diagram ................................................................................................................. 35
Figure 6-2 Module’s assembly diagram ............................................................................................................................ 36
Figure 6-3 Relevant package dimensions from TOP view ........................................................................................ 37
Figure 6-4 Relevant package dimensions from BOTTOM view .............................................................................. 38
Tables
Table 1-1 Module’s functions ................................................................................................................................................... 1
Table 2-1 60pin stamp-hole definitions .............................................................................................................................. 6
Table 2-2 Antenna interface’s RF performance ............................................................................................................. 11
Table 3-1 UART interface signal definitions ................................................................................................................... 12
Table 3-2 I2C interface signal definitions ........................................................................................................................ 13
Table 3-3 SPI Interface signal definitions ........................................................................................................................ 13
Table 3-4 PCM interface signal definitions ...................................................................................................................... 13
Table 3-5 USB interface signal definitions ....................................................................................................................... 14
Table 3-6 ADC interface signal definitions ...................................................................................................................... 14
Table 3-7 PWM interface signal definitions .................................................................................................................... 14
Table 3-8 LCD interface signal definitions ....................................................................................................................... 14
