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