SimCom SIM5218E Hardware Design page 11

SIM5218E Hardware Design
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
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 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.
has
Note: The SIM5218J
the active antenna's Vcc must be 2.5V~2.7V.
The SIM5218E also provides a PCM interface. The PCM interface is a 4 pin, digital interface that
enables PCM communication between the Module and an external codec. PCM interface pins are
multiplex on GPIOs. Use AT+CPCM command to enable PCM function and configure the mode
that you want. Please refer to section 3.19 and 3.8.5.5.
SIM5218E key features at a glance:
Table 3: SIM5218E key features
Feature
Power supply
Power saving
Frequency bands
Transmit power
SIM5218E_HD_V1.03
，
"SIMTECH USB Modem" and "SIMTECH ATCOM
internal bias voltage, so it support external active-antenna; however
Implementation
Single supply voltage 3.4V – 4.2V
Typical power consumption in SLEEP mode to 4.0mA ( DRX=2 )
GSM: 850M/ 900M/ DCS 1800M/ PCS 1900M.
WCDMA: 2100M/1900M/900M
The SIM5218E can worked in GSM and WCDMA mode
The frequency bands also can be set by AT COMMAND.
●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
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11.06.2009