EVDO PC Embedded Datasheet

Product Datasheet
V001R006
Issue 2 (2009-01-20)
Confidencein Commercial
Page 10 of 60
1.3 Hardware Overview
The hardware of the EM660 consists of three sections: baseband section, power
management (PM) section, and radio frequency (RF) section. External interfaces
include the antenna interface and the Mini PCI Express interface.
1.3.1 Hardware Logic Block Diagram
The EM660 is completed on a single-board. Figure 1-2 shows the hardware
functional block diagram.
Figure 1-2 Hardware functional block diagram
The circuitry of the EM660 consists of three sections: baseband section, RF section,
and PM section.
l
The baseband section includes the baseband processor and DDR SDRAM/flash
MCP. It implements baseband signals processing, wireless protocols, and
management of various peripheral devices.
l
The RF section includes the RF transceiver, PA, antenna switches, duplexer,
and antenna interfaces, and it supports receive diversity.