User Manual

The module contains Atmel’s AT91SAM7X256 Microcontroller, AT86RF212B RF
transceiver, balun, two RF switches, power amplifier and low noise amplifier.
The balun transforms the differential radio transceiver RF signals (RFP/RFN) to a
single ended RF signal. The RF switches separate between receive and transmit path.
These switches are controlled by the RX/TX indicator.
During receive the RF signal, switch will send it to the low noise amplifier. The signal
will be amplified by the low noise amplifier and fed to the radio transceiver AT86RF212B
using the second RX/TX switch and balun.
During transmit, the AT86RF212B’s TX signal is amplified using a power amplifier, and
then fed to the antenna via the RF switch.
3.1 Modem Characteristics
3.1.1 Electric Characteristics
Test conditions (unless otherwise stated), Vcc=3V, Tamb=25°C
Parameters Range Unit Condition
Supply Voltage (Vcc) 3 to 3.6 V
Current Consumption: RX
mode
40 mA