SPRF24B01A
2.4GHz High-Performance RF Transceiver
Ultra-low power GFSK transceiver for worldwide ISM band (2400-2483.5MHz), designed for reliable battery-powered peripherals and star-network wireless systems.
General Description
The SPRF24B01A works in Time Division Duplex (TDD) mode and can switch seamlessly between transmitter and receiver roles. With burst transmission and air data rates up to 2Mbps, it minimizes radio active time and significantly reduces power consumption in energy-sensitive designs.
Its embedded packet engine automatically handles Auto Re-transmission and Auto Acknowledge, reducing host MCU overhead and enabling simpler, lower-cost controller integration while maintaining robust wireless links.
Precision Frequency Control
RF channel frequency is programmable through RF_CH register:
F0 (MHz) = 2400 + RF_CH
1MHz channel resolution helps avoid interference in crowded wireless environments.
2.4GHz ISM Coverage
Full operation across 2.400GHz to 2.4835GHz with programmable channels.
High Sensitivity
-97dBm at 250Kbps and -87dBm at 2Mbps for reliable long-range reception.
1:6 Star Network
Six data pipes allow one receiver to communicate with up to six transmitters.
Key Features
Superior RF Performance
- check_circleWorldwide 2.4GHz ISM band support (2400MHz - 2483.5MHz)
- check_circleProgrammable air data rates: 250Kbps / 1Mbps / 2Mbps
- check_circleSensitivity: -97dBm at 250Kbps, -87dBm at 2Mbps
- check_circleAdjustable TX output power to optimize range and battery life
Intelligent Packet Handling
- check_circleAutomatic packet processing to reduce firmware complexity
- check_circleAuto Re-transmission and Auto Acknowledge built into hardware
- check_circle6 data pipes for 1:6 star topology communication
- check_circleVariable payload length support from 1 to 32 bytes
System & Interface
- check_circleOperating voltage range: 1.9V - 3.6V
- check_circle4-pin SPI interface with up to 8MHz clock
- check_circleEmbedded data slicer and bit-recovery logic for stable demodulation
Compact Design
- check_circle20-pin 4x4mm QFN package for compact PCB layout
- check_circleIdeal for headsets, remotes, and space-constrained wireless products
Technical Specifications
| Parameter | Specifications |
|---|---|
| Frequency Range | 2.400 GHz - 2.4835 GHz |
| Operating Voltage | 1.9V - 3.6V |
| Air Data Rate | 250Kbps / 1Mbps / 2Mbps |
| Sensitivity | -97dBm (at 250Kbps) / -87dBm (at 2Mbps) |
| Interface | 4-pin SPI (Max 8MHz) |
| Network Topology | Star Network (Up to 1:6) |
| Package Type | 20-Pin 4x4 QFN |
Target Applications
- keyboardPC peripherals: wireless mice, keyboards, gamepads, presenters
- tv_remoteConsumer electronics: remote controls and interactive toys
- headphonesAudio and voice: wireless audio, VOIP, and headsets
- homeSmart environment and health lifestyle devices