Huawei ME909 manual Power Supply Time Sequence, Parameter Remarks Time Nominal value Unit

Page 15

HUAWEI ME909 Series Mini PCIe Module

 

Hardware Guide

Description of the Application Interfaces

3.4 Power Supply Time Sequence

Power on sequence

Do not toggle RESIN_N pin during the power on sequence. Pulling RESIN_N pin low will extend time for module startup.

Figure 3-2Power on timing sequence

Parameter

Remarks

Time (Nominal value)

Unit

 

 

 

 

TPD+

Power Valid to USB

14

s

 

D+ high

 

 

 

 

 

 

Power off Sequence

Cutting off 3.3 V will power off the module.

Figure 3-3Power off timing sequence

 

Huawei Proprietary and Confidential

15

Issue 0.1 (2013-06-09)

Copyright © Huawei Technologies Co., Ltd.

 

Page 14 Page 16
Image 15
Page 14 Page 16
Contents Hardware Guide Issue DateNo Warranty About This Document Revision HistoryDocument Date Chapter Descriptions Version Contents Certifications FCC Statement Introduction 1ME909 series product nameProduct name Description State Function Overview Feature DescriptionOverall Description About This ChapterLEDWWAN# Active-low LED signal indicating the state Circuit Block DiagramMini PCIe Interface Description of the Application InterfacesGND WAKE#VCC3V3 COEX1Uimdata UimresetWDISABLE# UimpwrUSBD+ Usbdp SmbclkSmbdata Usbd UsbdmPin No Pin Name Minimum Typical Maximum Power Sources and GroundsParameter Remarks Time Nominal value Unit Power Supply Time SequencePower Valid to USB + high Cutting off 3.3 V will power off the moduleResinn Signal WAKE# Signal6Reset pulse timing WDISABLE# Signal LEDWWAN# SignalUSB Interface Overview Pin No Pin Name Description DC Characteristics Min Typ MaxPin Pin Name Description DC Characteristics Min Typ Max Usim Card InterfaceExternal 2.85 Usim card Circuit Recommended for the Usim Card InterfacePCM data input Pin Pin Name Description DC Characteristics Min TypAudio Interface PCM clockRF Antenna Connector Reserved Reserved, please keep open Reserved PinsNC Pins Pin No Pin Name DescriptionNC pins RF Specifications Operating FrequenciesOperating Band Test Standards Conducted Rx Sensitivity and Tx PowerConducted RF Measurement Test EnvironmentBand Typical TBDType Value 16QAM Conducted Transmit PowerModulation RB Allocation MPRdB QpskAntenna Design Requirements Antenna Design IndicatorsPolarization 3 GSM/WCDMA/GPS Antenna Requirements InterferenceAntenna for that/those bands Radio Test EnvironmentFrequency range Operator, the customer must use the most suitablePassive Tests Absolute Ratings Electrical and Reliability FeaturesSymbol Specification Min Max Unit External power voltage Digital input voltageSpecification Min Max Unit Operating and Storage Temperatures and HumidityElectrical Features of Usim Electrical Features of Application InterfacesParameter Min Typ Max Ripple Unit Power Supply FeaturesInput Power Supply Power Module Peak GSM Normal Normal LTE SlotDescription Bands Test Value Units Power ConsumptionDescription Band Test Value Units Power dBm WcdmaHsdpa 23dBm Tx Power IMT2100LTE GPRS900 TBD ConfigurationDescription Test Value Units GPRS850 TBDDescription Max Test Value Units Configuration EDGE850 TBDEDGE900 TBD Test Condition Standard Reliability Features− UIM − USB EMC and ESD FeaturesHuawei Proprietary and Confidential Issue 0.1 Dimensions and Interfaces Mechanical Specifications1Dimensions of the ME909 module Dimensions of the Mini PCI Express ConnectorInstalling the Mini PCIe Adapter on the Main Board Specification Selection for FastenersHuawei Proprietary and Confidential Issue 0.1 Removing the Mini PCIe Adapter from the Main Board Page GCF Weee CertificationsCertifications Certification Model name ME909u-521Area with Inflammables and Explosives Safety InformationInterference Medical DeviceEnvironment Protection Safety of ChildrenTraffic Security Airline SecurityRegulatory Information Care and MaintenanceLaws and Regulations Observance Emergency CallFCC Statement Appendix a Circuit of Typical Interface Acronym or Abbreviation Expansion Appendix B Acronyms and AbbreviationsLCP HSPA+Hsupa ISO
Related manuals
Manual 13 pages 25.55 Kb
Top Page Image Contents