PRODUCT SPECIFICATION
Nordic Semiconductor ASA -Vestre Rosten 81, N-7075 Tiller, Norway -Phone +4772898900 -Fax +4772898989
Revision: 1.1 Page 1 of 39 June 2004
Single chip 2.4 GHz Transceiver
FEATURES APPLICATIONS
• True single chip GFSK transceiver in a small
24-pin package (QFN24 5x5mm) • Wireless mouse, keyboard, joystick
• Keyless entry
• Data rate 0 to1Mbps • Wireless data communication
• Only 2 external components • Alarm and security systems
• Multi channel operation
• 125 channels
• Channel switching time <200µs.
• Support frequency hopping
• Home automation
• Surveillance
• Automotive
• Data slicer / clock recovery of data • Telemetry
• Address and CRC computation • Intelligent sports equipment
• DuoCeiver™ for simultaneous dual receiver
topology
• ShockBurst™ mode for ultra-low power
operation and relaxed MCU performance
• Industrial sensors
• Toys
• Power supply range: 1.9 to 3.6 V
• Low supply current (TX), typical 10.5mA peak
@ -5dBm output power
• Low supply current (RX), typical 18mA peak in
receive mode
• 100 % RF tested
• No need for external SAW filter
• World wide use
GENERAL DESCRIPTION
nRF2401 is a single-chip radio transceiver for the world wide 2.4 - 2.5 GHz ISM
band. The transceiver consists of a fully integrated frequency synthesizer, a power
amplifier, a crystal oscillator and a modulator. Output power and frequency channels
are easily programmable by use of the 3-wire serial interface. Current consumption is
very low, only 10.5mA at an output power of -5dBm and 18mA in receive mode.
Built-in Power Down modes makes power saving easily realizable.
QUICK REFERENCE DATA
Parameter Value Unit
Minimum supply voltage 1.9 V
Maximum output power 0dBm
Maximum data rate 1000 kbps
Supply current in transmit @ -5dBm output power 10.5 mA
Supply current in receive mode 18 mA
Temperature range -40 to +85 °C
Sensitivity -90 dBm
Supply current in Power Down mode 400 nA
Table 1 nRF2401 quick reference data
nRF2401
PRODUCT SPECIFICATION
nRF2401 Single Chip 2.4 GHz Radio Transceiver
Nordic Semiconductor ASA -Vestre Rosten 81, N-7075 Tiller, Norway -Phone +4772898900 -Fax +4772898989
Revision: 1.1 Page 2 of 39 June 2004
Type Number Description Version
NRF2401 IC 24 pin QFN 5x5, saw A
NRF2401G IC 24 pin QFN 5x5, punch, lead free A
NRF2401-EVKIT Evaluation kit (2 test PCB, 2 configuration PCB, SW) 1.0
Table 2 nRF2401 ordering information
BLOCK DIAGRAM
DVDD
VDD=3V
VDD=3V
XC1
XC2
400
Ω
IREF
VDD_PA=1.8V
VSS_PA=0V
ANT1
ANT2
22k
Ω
VSS=0V
VSS=0V
VDD=3V
VSS=0V
VSS=0V
Frequency
Synthesiser
PA
LNA
IF BPF
DEMOD
Clock
Recovery,
DataSlicer
ADDR
Decode
FIFO
In/Out
CRC
Code/Decode
DuoCeiver
TM
ShockBurst
TM
GFSK
Filter
DATA
CS
CLK1
3-wire
interface
PWR_UP
CE
CLK2
DOUT2
DR2
DR1
Data
Channel 2
Data
Channel 1
Figure 1 nRF2401 with external components.
