SIM5218E Hardware Design
SIM5218E_ Hardware Design_V1.06
2012.09.21
10
The SIM5218E provides RF antenna interface with two alternatives: antenna connector and
antenna pad. The antenna connector is MURATA MM9329-2700. And customer’s antenna can be
soldered to the antenna pad.
The SIM5218E is integrated with the TCP/IP protocol
，
Extended TCP/IP AT commands are
developed for customers to use the TCP/IP protocol easily, which is very useful for those data
transfer applications.
Note: The SIM5218E has two kinds of interface (UART and USB) to connect to host CPU. USB
interface is mapped to five virtual ports: “SIMTECH USB Modem”, “SIMTECH NMEA
Device”
，
“SIMTECH ATCOM Device”, “SIMTECH Diagnostics interface” and “SIMTECH
Wireless Ethernet Adapter”. UART
，
“SIMTECH USB Modem” and “SIMTECH ATCOM
Device” could response AT command, and URC report to these three ports at the same time, but
user could set dedicated port to receive URC(Unsolicited Result Code ).
The SIM5218E is also integrated with GPS. A GPS receiver with high performance has been
integrated to offer GPS full functions; it continuously tracks all satellites in view and provides
accurate satellite position data. This solution performs well, even in very challenging
environmental conditions where conventional GPS receivers fail, and provides a platform to
enable wireless operators to address both location-based services and emergency mandates.
SIM5218E both supports A-GPS and S-GPS.
Note: The SIM5218E
has
internal bias voltage, so it support external active-antenna; however
the active antenna’s Vcc must be 2.5V~2.7V.
SIM5218E key features at a glance:
Table 3: SIM5218E key features
Feature
Implementation
Power supply
Single supply voltage 3.4V – 4.2V
Power saving
Typical power consumption in SLEEP mode to 4.0mA ( DRX=2 )
Frequency bands
z
GSM: 850M/ 900M/ DCS 1800M/ PCS 1900M.
z
WCDMA: 2100M/1900M/900M
z
The SIM5218E can worked in GSM and WCDMA mode
z
The frequency bands also can be set by AT+CNMP.
Transmit power
●
Class 4 (+33dBm ±2dB) for GSM850
●
Class 4 (+33dBm ±2dB) for EGSM900
●
Class 1 (+30dBm ±2dB) for GSM1800
●
Class 1 (+30dBm ±2dB) for GSM1900
●
Class E2 (+27dBm ± 3dB) for GSM 850 8-PSK
●
Class E2 (+27dBm ± 3dB) for GSM 900 8-PSK
●
Class E2 (+26dBm +3 /-4dB) for GSM 1800 8-PSK
●
Class E2 (+26dBm +3 /-4dB) for GSM 1900 8-PSK
●
Class 3 (+24dBm +1.7/-3.7dB) for WCDMA 2100, WCDMA FDD BDI
