User's Manual

Page 4/51
HiAll
NC
User Manual 2012/06/28
FIGURES LIST
Figure 1: HiAll
NC
Block diagram .............................................................................................................................................7
Figure 2: Typical SIM schematic ...........................................................................................................................................12
Figure 3: SIM card signals......................................................................................................................................................12
Figure 4: SIM schematic with protection serial resistors & EXT_SIM_DET signal..............................................................13
Figure 5: Analogue audio connection.....................................................................................................................................14
Figure 6: Filter and ESD protection of microphone ...............................................................................................................15
Figure 7: Filter and ESD protection of 32 ohms speaker........................................................................................................15
Figure 8: Example of D class TPA2010D1 1Watt audio amplifier connections ....................................................................16
Figure 9: PCM interface timing..............................................................................................................................................18
Figure 10: GSM/GPRS Burst Current rush ............................................................................................................................18
Figure 11: GSM/GPRS Burst Current rush and VBAT drops and ripples...............................................................................19
Figure 12: DC/DC power supply schematic example.............................................................................................................20
Figure 13: Example of power supply based on regulator MIC29302WU ..............................................................................20
Figure 14: Example with Linear LT1913 ...............................................................................................................................21
Figure 15: Complete V24 connection of HiAllNC to host processor .....................................................................................23
Figure 16: UART1_CTS versus POK_IN signal during the power on sequence. ..................................................................23
Figure 17: Connection to a data cable ....................................................................................................................................24
Figure 18: Example of a connection to a data cable with a MAX3238E................................................................................25
Figure 19: Partial V24 connection (4 wires) of HiAll
NC
to host processor.............................................................................25
Figure 20: Partial V24 connection (2 wires) of HiAll
NC
to host processor.............................................................................26
Figure 21: SPI HE10 pin – TOP VIEW..................................................................................................................................27
Figure 22: internal charging of backup battery or 10uF capacitor..........................................................................................29
Figure 23: Reset command of the HiAll
NC
by an external GPIO............................................................................................36
Figure 24: Diagram for the power on .....................................................................................................................................38
Figure 25: Diagram for the sleep mode ..................................................................................................................................39
Figure 26: Power supply command by a GPIO ......................................................................................................................40
Figure 27: Power OFF sequence for POK_IN, VGPIO and CTS...........................................................................................40
Figure 28: GSM antenna connection schematic .....................................................................................................................43
Figure 29: GNSS active antenna connection schematic .........................................................................................................44
Figure 30: Layout of audio differential signals on a layer n...................................................................................................48
Figure 31: Adjacent layers of audio differential signals.........................................................................................................48
Figure 32: 6 layers PCB stack-up...........................................................................................................................................49