1.1 Features
12
• Qualification in Accordance With AEC-Q100
Grade 1
• Extended Temperature Range Up To 125°C
• Radio-Frequency (RF) Performance
– High Sensitivity (–114 dBm at 1.2 kBaud,
315 MHz, 1% Packet Error Rate)
– Low Current Consumption (15.5 mA in
Receive, 1.2 kBaud, 315 MHz)
• Programmable Output Power up to +10 dBm for
All Supported Frequencies
• Excellent Receiver Selectivity and Blocking
Performance
• Programmable Data Rate From 1.2 kBaud to
250 kBaud
• Frequency Bands: 310 MHz to 348 MHz,
420 MHz to 450 MHz, and 779 MHz to 928 MHz
• Analog Features
– 2-FSK, GFSK, and MSK Supported, as Well
as OOK and Flexible ASK Shaping
– Suitable for Frequency-Hopping Systems
Due to a Fast Settling Frequency
Synthesizer: 90-μs Settling Time
– Automatic Frequency Compensation (AFC)
Can Align Frequency Synthesizer to
Received Center Frequency
– Integrated Analog Temperature Sensor
• Digital Features
– Flexible Support for Packet-Oriented
Systems: On-Chip Support for Sync Word
Detection, Address Check, Flexible Packet
Length, and Automatic CRC Handling
– Efficient SPI Interface: All Registers Can Be
Programmed With One Burst Transfer
– Digital RSSI Output
– Programmable Channel Filter Bandwidth
– Programmable Carrier Sense (CS) Indicator
– Programmable Preamble Quality Indicator
(PQI) for Improved Protection Against False
Sync Word Detection in Random Noise
– Support for Automatic Clear Channel
Assessment (CCA) Before Transmitting (for
Listen-Before-Talk Systems)
– Support for Per-Package Link Quality
Indication (LQI)
– Optional Automatic Whitening and
Dewhitening of Data
• Low-Power Features
– Fast Startup Time: 240 μs From Sleep to
Receive (RX) or Transmit (TX) Mode
– Wake-On-Radio Functionality for Automatic
Low-Power RX Polling
– Separate 64-Byte RX and TX Data FIFOs
(Enables Burst Mode Data Transmission)
• General
– Few External Components: Completely
On-Chip Frequency Synthesizer, No External
Filters or RF Switch Needed
– Green Package: RoHS Compliant and No
Antimony or Bromine
– Small Size QFN 5-mm×5-mm 32-Pin Package
– Suited for Systems Compliant With
EN 300 220 (Europe) and FCC CFR Part 15
(US)
– Support for Asynchronous and Synchronous
Serial Receive/Transmit Mode for Backward
Compatibility With Existing Radio Communication Protocols
– Designed for Automotive Applications

1.2 Applications
• Ultra-Low-Power Wireless Applications in the
315/433/868/915-MHz ISM/SRD Bands
• Remote Keyless Entry Systems
• Passive Entry/Passive Start Systems
• Vehicle Service Links
• Garage Door Opener
• TPMS Systems