ATWIN Quad-band GPRS/GSM shield has PCB etched antenna, so no need for external antenna.
ATWIN Quad-band GPRS/GSM shield is an ultra compact and high quality wireless module base on infineon UCL2 platform with industy-standard interface.
This is a SMT package with small dimension, low power consumption, quad-band (AT139) and dual-band (AT139D) GSM/GPRS module.
It can provide with voice, SMS, Fax, data applicationgs for customers.
| Features | Description | |
|---|---|---|
| Network | GSM/GPRS | |
| Frequency Bands | AT139:GSM850/GSM900/DCS1800/PCS1900MHz | AT139D:GSM900/DCS1800MHz |
| RF Output Power | AT139:GSM850/GSM900: 33dBm, DCS1800/PCS1900:30dBm | AT139D:GSM900:33dBm, DCS1800:30dBm |
| RF Receive Sensitivity | <-108dbm td=""> | |
| Speech codec modes | FR,EFR,HR,AMR | |
| SMS | TEXT/PDU | |
| GPRS Connectivity | GPRS Class 10 | |
| Coding Scheme：CS1,CS2,CS3,CS4 | ||
| Physical Characteristics | ||
| Package | SMT | |
| Dimensions | 24(±0.1)*24(±0.1)*3(±0.1)mm | |
| Weight | 4g | |
| Performance | ||
| Power Supply | 3.3V~4.5V | |
| Antenna | External Antenna | |
| MCP | 64Mb NOR + 32Mb PSRAM | |
| Audio | Two input/output Audio channels | |
| SIM Card Application | Support SIM Card:1.8V/3.0V | |
| Pin Amounts | 38 PINs | |
| Firmware | ||
| Operating System | OSE | |