Analog Devices Inc. ADF7024 Low Power, Sub GHz Transceiver IC

Analog Devices Inc. ADF7024 Low Power, Sub GHz Transceiver IC is designed as an ultralow power, integrated transceiver for use in the license-free ISM bands at 433MHz, 868MHz, and 915MHz. ADF7024's ease-of-use and high performance make it suitable for a wide variety of wireless applications. The device is suitable for operation under the European ETSI EN300-220 regulation, the North American FCC Part 15 regulation, and other similar regulatory standards.

ADF7024 can operate under a number of pre-defined radio profiles. For each radio profile, optimized register settings are provided for the ADF7024 radio. This ensures that the RF communication layer works seamlessly, allowing the user to concentrate on the protocol and system level design and prototyping. The radio profiles cover common data rate and modulation options.

Features

RF frequency bands of 431MHz to 435MHz and 862MHz to 928MHz
Data rates supported of 9.6kbps, 38.4kbps, 50kbps, 100kbps, 200kbps,and 300kbps
Integrated packet management support
- Insertion/detection of preamble/sync word/cyclic redundancy check (CRC)
- Manchester and 8-bit/10-bit data encoding and decoding
- Data whitening
240-byte packet buffer for Tx/Rx data
Smart wake mode (SWM)
- Autonomous carrier sense, packet sniffing, and reception
Integrated battery alarm and temperature sensor
Integrated RC oscillator
On-chip, 8-bit analog-to-digital converter (ADC)
5mm × 5mm, 32-lead LFCSP package
Receiver performance
- −11.5dBm Input IP3 highly linear
- 76dB at 10MHz Offset blocking
- Receiver sensitivity, bit error rate (BER)
  - 111dBm at 9.6kbps
  - 105dBm at 100kbps
- Low power: 12.8mA in Rx

Modulation of two-level frequency (FSK) and Gaussian frequency (GFSK) shift keying
2.2V to 3.6V power supply
Automatic frequency control (AFC) and automatic gain control (AGC)
Digital received signal strength indication (RSSI)
Fully integrated low noise RF synthesizer and transmit (Tx)/receive (Rx) switch
Image rejection calibration (patent pending)
Ultralow power sleep modes for long battery life
Simple serial port interface (SPI) control interface
Fast radio state transitions
Transmitter performance
- 23.3mA in Tx at 10dBm High efficiency power amplifier (PA)
- −20dBm to +13.5dBm Output power range
- 0.5dB Output power resolution
Low power mode performance
- 0.33μA in PHY_SLEEP mode (Deep Sleep Mode 1)
- 0.75μA in PHY_SLEEP mode (32kHz RC oscillator active)
- 11.75μA autonomous Rx sniff using SWM, 300kbps
Supported regulations
- ETSI EN 300 220
- FCC Part 15.231, Part 15.247, Part 15.249