Инструкции для MTH Inc. MGM-312E

Содержание

• Introduction

  4
• Scope

  4
• Reference documents

  4
• MGM-312E Overview

  4
• MGM-312E Key Features

  4
• MGM-312E Functional Diagram

  5
• MGM-312E Evaluation Board

  5
• Application Interface

  6
• MGM-312E Pin Description

  6
• Power Supply

  8
• Power Up and Power down Scenarios

  9
• Power Saving

  11
• RTC backup

  12
• Serial interface

  13
• Audio interface

  14
• SIM Card interface

  16
• SPI interface

  17
• ADC

  17
• RI

  18
• Network Status Indication

  19
• Keypad Interface

  20
• Buzzer

  20
• Two-wire bus interface [I2C]

  21
• USB Interface

  21
• Radio interface

  22
• PCB design

  22
• Electrical, Reliability and Radio Characteristics

  24
• Absolute maximum Ratings

  24
• Recommended Operating Conditions

  24
• Digital Interface Characteristics

  24
• SIM Card Interface Characteristics

  24
• VRTC Characteristics

  24
• Current Consumption (VBAT = 3.8V)

  25
• ESD (Electro-Static Discharge)

  26
• Radio Characteristics

  26
• Mechanics

  27
• Mechanical Dimensions

  27
• Install the MGM-312E onto the host device.

  28
• Board-to-board connector

  29
• RF connector

  30
• Top View of the MGM-312E

  32
• PIN Assignment of MGM-312E

  32
• Regulatory Notes

  33
• Document History

  34
• Figure 1 MGM-312E Functional diagram

  5
• Figure 2 EVB and accessory equipment

  6
• Figure 3 Waveform of the max drop and ripple authorized for VBATT

  8
• Figure 4 Reference circuit of the Power supply

  9
• Figure 5 Powered up/down module using transistor

  9
• Figure 6 Powered up/down module using button

  10
• Figure 7 Timing of the power up

  10
• Figure 8 Timing of the power down by PWRKEY

  11
• Figure 9 RTC supply from large capacitance capacitor

  12
• Figure 10 RTC supply from rechargeable backup battery

  12
• Figure 11 SEIKO XH414H-IV01E Charge-Discharge Characteristic

  13
• Figure 12 Connection of the serial interfaces

  13
• Figure 13 Connection of RXD, TXD and RTS, CTS only

  14
• Figure 14 Connection of Debug serial interface

  14
• Figure 15 Receiver reference circuit

  15
• Figure 16 Microphone reference circuit

  15
• Figure 17 Ear microphone reference circuit

  16
• Figure 18 SIM Socket for module application

  17
• Figure 19 Battery TEMP or Application TEMP ADC input (with NTC=100K)

  18
• Figure 20 RI behaviour of data calling as a receiver

  19
• Figure 21 RI behaviour of URC or receive SMS

  19
• Figure 22 RI behaviour as a caller

  19
• Figure 23 Reference circuit of NETLIGHT

  20
• Figure 24 Keypad interface

  20
• Figure 25 Two-wire bus interface [I2C]

  21
• Figure 26 USB interface

  21
• Figure 27 Solder mask open (The shield can space of MGM-312E)

  23
• Figure 28 Avoid placing digital line underneath audio lines

  23
• Figure 29 Top and Side mechanical dimension of MGM-312E (Unit: mm)

  27
• Figure 30 Recommended PCB footprint outline (Unit: mm)

  28
• Figure 31 AXK6F60347YG board-to-board connector

  29
• Figure 32 AXK6F60347YG PCB footprint outline (Unit: mm)

  30
• Figure 33 U.FL-R-SMT

  31
• Figure 34 U.FL series RF adapter cable

  31
• Figure 35 MGM-312E module Top view

  32