Adaptive Modules
Site Last Updated: Tuesday, February 5, 2008
ZigBit™ Module with Dual Chip Antenna – MNZB-24-A2 (ZDM-A1281-A2)
ZigBit Module with Dual Chip Antenna is a low-power, best-in-class sensitivity 802.15.4 / ZigBee module. In just over half a square inch of space comes an impressive set of features you will be hard pressed to find anywhere else. Based on a solid combination of the popular ATmega 1281v MCU and the latest Atmel AT86RF230 radio transceiver, this ZigBit version offers superior radio performance with exceptional ease of integration.
ZigBit Module with Dual Chip Antenna eliminates the need for costly and time-consuming RF development and shortens time to market, while embedded 802.15.4 / ZigBee software ensures standards-based wireless connectivity for a wide range of applications.
ZigBit Module Hardware Platform
ZigBit is based on the innovative Atmel 802.15.4 hardware platform. The powerful ATmega 1281v MCU features 128kb of flash memory and 8Kb of RAM. The AT86RF230 transceiver offers -101dBm of Rx sensitivity and up to +3dBm of Tx power. This combination, called the "link budget" is related to its range of operation. The difference in link budget – just 9dBm – nearly triples its range. Thanks to the outperforming link budget, the range of AT86RF230 is 2.8 times that of its competitors.
ZigBit OEM Module Key Features
- Ultra compact size: 13.5mm x 24mm (0.53” x 0.95”)
- Patent-pending dual chip antenna
- High sensitivity (104 dB Link Budget)
- Very low power consumption (6 µA in sleep mode)
- Wide range of supported interfaces with reference software drivers
- High immunity to radio interference
- 802.15.4 / ZigBee stack featuring self-organizing, self-healing mesh network
| Parameter | ZigBit |
|---|---|
| Frequency band | 2.400 — 2.483 GHz |
| Number of channels | 16 |
| Data rate | 250 kbps |
| Max output power | 3 dBm |
| 2nd harmonic | -28 dBm |
| 3rd harmonic | -26 dBm |
| Sensitivity (PER 1%) | -101 dBm |
| Adjacent Channel Rejection | 27 dB |
| Alternate Channel Rejection | 53 dB |
| Supply voltage | 1.8 – 3.6 V |
| Current consumption, RX | 19 mA |
| Current consumption, TX | 18 mA |
| Current consumption (Sleep mode) | 6 µA |
| Flash memory | 128 kB |
| RAM | 8 kB |
| EEPROM | 4 kB |
| Operating Temperature | -40 — +85 °C |
Supported External Interfaces
- USART/SPI, I2C, 1-wire
- UART with CTS/RTS control
- JTAG
- 9 spare GPIOs (up to 25 GPIOs total)
- 2 spare IRQ lines
- 4 ADC lines
ZigBee Software Options: eZeeNet, SerialNet, and OpenMAC
ZigBit module is compatible with all three stack configurations available from MeshNetics