User's Manual

HiLo3G-850 User Manual
04 March 2011 - Page 4 / 36
Figures List
Figure 1: HiLo3G-850 module Block diagram ......................................................................................................... 6
Figure 2: HiLo3G-850 module connector side ......................................................................................................... 7
Figure 3: HiLo3G-850 module back side ................................................................................................................. 7
Figure 4: SIM Card signals ....................................................................................................................................... 8
Figure 5: EMC and ESD protection components close to SIM ................................................................................ 8
Figure 6: Serial resistors for protection of long SIM bus lines ................................................................................. 9
Figure 7: Primary PCM mode timing parameter .................................................................................................... 10
Figure 8: Auxiliary PCM mode timing parameter .................................................................................................. 11
Figure 9: Analog audio connections ....................................................................................................................... 12
Figure 10: Filter and ESD protection for microphone ............................................................................................ 12
Figure 11: Filter and ESD protection for 32 ohms speaker .................................................................................... 13
Figure 12: Example of D class TPA2010D1 1Watt audio amplifier connections .................................................. 13
Figure 13: Microphone performance requirements ................................................................................................ 14
Figure 14: Speaker performance requirements ....................................................................................................... 15
Figure 15: Buzzer connection ................................................................................................................................. 15
Figure 16: Network LED connection ...................................................................................................................... 15
Figure 17: Complete V24 connection between the HiLo3G-850 and the host ....................................................... 17
Figure 18: C ........................................................ 17
Figure 19: Connection to a data cable..................................................................................................................... 18
Figure 20: Partial V24 connection (4 wires) between HiLo3G-850 and host ......................................................... 18
Figure 21: Partial V24 connection (2 wires) between HiLo3G-850 and host ......................................................... 20
Figure 22: Programmable GPIO configurations ..................................................................................................... 20
Figure 23: Backup battery or 10μF capacitor internally charged ............................................................................ 21
Figure 24: Power on sequence ................................................................................................................................ 23
Figure 25: Power off sequence ............................................................................................................................... 24
Figure 26: Diagram for the power on ..................................................................................................................... 25
Figure 27: Diagram for the sleep mode .................................................................................................................. 26
Figure 28: Power off sequence for PWON, VGPIO and CTS ................................................................................ 27
Figure 29: Antenna connection reference ............................................................................................................... 29
Figure 30: Spring contact ........................................................................................................................................ 29
Figure 31: Ground HiLo3G-850 to customer board ............................................................................................... 30
Figure 32: Layout of audio differential signals on a layer n ................................................................................... 33
Figure 34: Reference 6 layers PCB stack ............................................................................................................... 34