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HUAWEI EM820W HSPA+ PC Embedded Module
Hardware Guide Overall Description
Issue 01 (2010-12-31)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
3
Feature Description
W_Disable#: for turning on/off the RF signal.
LED_WWAN#: Active-low LED signal indicating the state of the
card
Power Interface
New message alert, receiving and sending text messages
Management of text messages: read messages, delete
messages, storage status, and message list
SMS
Support for the protocol data unit (PDU) mode
GSM CS: 9.6/14.4 kbps
GPRS/EDGE: Multi-slot Class 12, Class B
WCDMA CS: UL 64kbps/DL 64kbps
WCDMA/HSDPA PS: UL384kbps/DL3.6Mbps, HSDPA Category
6, 8, 9, 10, 12, 14
Data services
HSPA+ Rel7
Physical
features
Dimensions (L × W × H): 50.95 mm × 30 mm × 4.5 mm
Weight: < 15 g
Certification
information
Restriction of the use of certain Hazardous Substances (RoHS),
European Conformity (CE), Federal Communications
Commission (FCC)
2.3 Circuit Block Diagram
Figure 2-1 shows the circuit block diagram of the EM820W module. The application
block diagram and major functional units of the EM820W module contain the
following parts:
z
Mobile data modem
z
Power management
z
Multi-chip package (MCP) memory
z
Radio frequency (RF) transceiver
z
RF front-end modules
z
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