AT86RF212 Atmel Corporation, AT86RF212 Datasheet - Page 2

• Manufacturer Part Number: AT86RF212
• Manufacturer: Atmel Corporation

Specifications of AT86RF212

• Max. Operating Frequency: 0 MHz
• Crypto Engine: AES
• Operating Voltage (vcc): 1.8 to 3.6
• Frequency Band: 700/800/900MHz
• Max Data Rate (mb/s): 1
• Antenna Diversity: No
• External Pa Control: Yes
• Power Output (dbm): 10
• Receiver Sensitivity (dbm): -110
• Receive Current Consumption (ma): 9.0
• Transmit Current Consumption (ma): 18 at 5dBm
• Link Budget (dbm): 120

1 Overview
1.1 General Circuit Description
2
AT86RF212
The AT86RF212 is a low-power, low-voltage 700/800/900 MHz transceiver specially
designed for the IEEE Standard 802.15.4, ZigBee, 6LoWPAN, and high data rate ISM
applications. For the sub-1 GHz bands, it supports low data rates (20 and 40 kbit/s) of
the IEEE Standard 802.15.4-2003/2006 [1, 2] and provides optional data rates (100 and
250 kbit/s) using O-QPSK, according to the IEEE Standard 802.15.4-2006 [1] and the
respective IEEE 802.15.4c-2009 Amendment [3]. Furthermore, proprietary High Data
Rate Modes up to 1000 kbit/s can be employed.
The AT86RF212 is a true SPI-to-antenna solution. RF-critical components except the
antenna, crystal, and de-coupling capacitors are integrated on-chip. MAC and AES
hardware accelerators improve overall system power efficiency and timing.
The AT86RF212 single-chip RF transceiver provides a complete radio interface
between the antenna and the microcontroller. It comprises the analog radio part, digital
modulation and demodulation, including time and frequency synchronization, as well as
data buffering. A single 128 byte TRX buffer stores receive or transmit data.
Communication between transmitter and receiver is based on direct sequence spread
spectrum with different modulation schemes and spreading codes.
The number of external components is minimized so that only the antenna, a filter (at
high output power levels), the crystal, and four bypass capacitors are required. The
bidirectional differential antenna pins are used in common for RX and TX, i.e. no
external antenna switch is needed. Control of an external power amplifier is supported
by two digital control signals (differential operation).
The AT86RF212 supports the IEEE 802.15.4-2006 standard mandatory BPSK
modulation and optional O-QPSK modulation in the 868.3 MHz and 915 MHz bands. In
addition, it supports the O-QPSK modulation defined in IEEE 802.15.4c-2009 for the
Chinese 780 MHz band. For applications not necessarily targeting IEEE compliant
networks, the radio transceiver supports proprietary High Data Rate Modes based on
O-QPSK.
The AT86RF212 features hardware supported 128 bit security operation. The
standalone AES encryption/decryption engine can be accessed in parallel to all PHY
operational modes. Configuration of the AT86RF212, reading and writing of data
memory, as well as the AES hardware engine are controlled by the SPI interface and
additional control signals.
On-chip low-dropout voltage regulators provide the analog and digital 1.8 V power
supply. Control registers retain their settings in sleep mode when the regulators are
turned off. The RX and TX signal processing paths are highly integrated and optimized
for low power consumption.
The transceiver block diagram is shown in Figure 1-1.
8168C-MCU Wireless-02/10