Preliminary Product Specification v1 - SparkFun Electronics

1 All rights in whole or in part is prohibited without the prior written permission of the copyright 2008nRF24L01+ Single Chip TransceiverPreliminary Product Specification Features Worldwide ISM band operation 250kbps, 1 Mbps and 2 Mbps on air data rates Ultra low power operation TX at 0dBm output power RX at 2 Mbps air data rate 900nA in power down 26 A in standby-I On chip voltage regulator to supply range Enhanced ShockBurst Automatic packet handling Auto packet transaction handling 6 data pipe MultiCeiver Drop-in compatibility with nrf24l01 On-air compatible in 250kbps and 1 Mbps with nRF2401A, nRF2402, nRF24E1 and nRF24E2 Low cost BOM 60ppm 16 MHz crystal 5V tolerant inputs Compact 20-pin 4x4mm QFN packageApplications Wireless PC Peripherals Mouse, keyboards and remotes 3-in-1 desktop bundles Advanced Media center remote controls VoIP headsets Game controllers Sports watches and sensors RF remote controls for consumer Electronics Home and commercial automation Ultra low power sensor networks Active RFID Asset tracking systems ToysRevision 2 of 75nRF24L01+ Preliminary Product SpecificationLiability disclaimerNordic Semiconductor ASA reserves the right to make changes without further notice to the Product to improve reliability, function or design.

2 Nordic Semiconductor ASA does not assume any liability arising out of the application or use of any Product or circuits described application information is advisory and does not form part of the valuesStress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the specifications are not implied. Exposure to limiting values for extended periods may affect device support applicationsThese products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Nordic Semiconductor ASA cus-tomers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Nordic Semiconductor ASA for any damages resulting from such improper use or detailsVisit for Nordic Semiconductor sales offices and distributors worldwide Main office:Otto Nielsens vei 127004 TrondheimPhone: +47 72 89 89 00 Fax: +47 72 89 89 sheet statusObjective Product specificationThis Product Specification contains target specifications for Product Product Specification This Product Specification contains Preliminary data; supplementary data may be published from Nordic Semiconductor ASA specificationThis Product Specification contains final Product specifications.

3 Nordic Semiconductor ASA reserves the right to make changes at any time without notice in order to improve design and supply the best possible 3 of 75nRF24L01+ Preliminary Product SpecificationWriting ConventionsThis Product Specification follows a set of typographic rules that makes the document consistent and easy to read. The following writing conventions are used: Commands, bit state conditions, and register names are written in Courier. Pin names and pin signal conditions are written in Courier bold. Cross references are underlined and highlighted in HistoryAttention!DateVersionDescriptionM arch precaution for handling Electrostatic Sensitive Device. Revision 4 of 75nRF24L01+ Preliminary Product SpecificationContents1 Introduction .. diagram .. 92 Pin Information .. 113 Absolute maximum ratings .. 124 Operating conditions .. 135 Electrical specifications.

4 RF conditions .. operation .. operation .. specifications .. characteristics .. on reset .. 196 Radio Control .. Modes .. diagram .. Down Mode .. mode .. modes Information .. data channel frequency .. Power Detector control .. 257 Enhanced ShockBurst .. ShockBurst overview .. Shockburst packet .. Control Field .. (Cyclic Redundancy Check) .. packet handling .. and Dynamic Payload packet assembly .. packet validation .. packet disassembly .. 30 Revision 5 of 75nRF24L01+ Preliminary Product packet transaction handling .. Acknowledgement .. Retransmission (ART).. ShockBurst flowcharts .. operation .. ShockBurst ShockBurst transaction diagram .. transaction with ACK packet and transaction with a lost transaction with a lost ACK packet.

5 Transaction with ACK payload packet .. transaction with ACK payload packet and lost packet .. 447 . 9 . 6T w o t r a n s a c t i o n s w i t h A C K p a y l o a d p a c k e t a n d t h e f i r s t ACK packet lost .. transactions where max retransmissions is with ShockBurst .. packet 468 Data and Control Interface .. description .. operation .. Commands .. timing .. FIFO .. 539 Register map table .. 5410 Peripheral RF Information .. output .. oscillator .. + crystal sharing with an parameters .. crystal amplitude and current consumption .. layout and decoupling 6211 Application example .. layout examples .. 6412 Mechanical specifications .. 6813 Ordering information .. marking .. options .. silicon .. tools .. 7014 Glossary of 71 Revision 6 of 75nRF24L01+ Preliminary Product SpecificationAppendix A - Enhanced ShockBurst - Configuration and Communication Example.

6 72 Enhanced ShockBurst Transmitting Payload .. 72 Enhanced ShockBurst Receive Payload .. 73 Appendix B - Configuration for compatibility with 74 Appendix C - Constant carrier wave output for 75 Configuration .. 75 Revision 7 of 75nRF24L01+ Preliminary Product Specification1 IntroductionThe nrf24l01 + is a single chip transceiver with an embedded baseband protocol engine (Enhanced ShockBurst ), suitable for ultra low power wireless applications. The nrf24l01 + is designed for operation in the world wide ISM frequency band at - To design a radio system with the nrf24l01 +, you simply need an MCU (microcontroller) and a few exter-nal passive can operate and configure the nrf24l01 + through a Serial Peripheral Interface (SPI). The register map, which is accessible through the SPI, contains all configuration registers in the nrf24l01 + and is accessible in all operation modes of the chip.

7 The embedded baseband protocol engine (Enhanced ShockBurst ) is based on packet communication and supports various modes from manual operation to advanced autonomous protocol operation. Internal FIFOs ensure a smooth data flow between the radio front end and the system s MCU. Enhanced Shock-Burst reduces system cost by handling all the high speed link layer radio front end uses GFSK modulation. It has user configurable parameters like frequency channel, output power and air data rate. nrf24l01 + supports an air data rate of 250 kbps, 1 Mbps and 2 Mbps. The high air data rate combined with two power saving modes make the nrf24l01 + very suitable for ultra low power designs. nrf24l01 + is drop-in compatible with nrf24l01 and on-air compatible with nRF2401A, nRF2402, nRF24E1 and nRF24E2. Intermodulation and wideband blocking values in nrf24l01 + are much improved in comparison to the nrf24l01 and the addition of internal filtering to nrf24l01 + has improved the margins for meeting RF regulatory voltage regulators ensure a high Power Supply Rejection Ratio (PSRR) and a wide power supply 8 of 75nRF24L01+ Preliminary Product FeaturesFeatures of the nrf24l01 + include: RadioXWorldwide ISM band operationX126 RF channelsXCommon RX and TX interfaceXGFSK modulationX250kbps, 1 and 2 Mbps air data rateX1 MHz non-overlapping channel spacing at 1 MbpsX2 MHz non-overlapping channel spacing at 2 Mbps TransmitterXProgrammable output power.

8 0, -6, -12 or at 0dBm output power ReceiverXFast AGC for improved dynamic rangeXIntegrated channel at 2 MbpsX-82dBm sensitivity at 2 MbpsX-85dBm sensitivity at 1 MbpsX-94dBm sensitivity at 250kbps RF SynthesizerXFully integrated synthesizerXNo external loop filer, VCO varactor diode or resonatorXAccepts low cost 60ppm 16 MHz crystal Enhanced ShockBurst X1 to 32 bytes dynamic payload lengthXAutomatic packet handlingXAuto packet transaction handlingX6 data pipe MultiCeiver for 1:6 star networks Power ManagementXIntegrated voltage to supply rangeXIdle modes with fast start-up times for advanced power managementX26 A Standby-I mode, 900nA power down modeXMax start-up from power down modeXMax 130us start-up from standby-I mode Host InterfaceX4-pin hardware SPIXMax 10 MbpsX3 separate 32 bytes TX and RX FIFOsX5V tolerant inputs Compact 20-pin 4x4mm QFN packageRevision 9 of 75nRF24L01+ Preliminary Product Block diagram Figure 1.

9 nrf24l01 + block diagramRF ReceiverXC1XC2 ANT1 ANT2 Enhanced ShockBurstBaseband EngineTX FIFOsRX FIFOsRadio ControlGFSKM odulatorSPIPALNATXF ilterRXFilterRF SynthesiserPower ManagementRF TransmitterBasebandCSNSCKMISOMOSIIRQCEVS SVDDDVDDVDD_PAGFSKD emodulatorRegister mapIREFR evision 10 of 75nRF24L01+ Preliminary Product Specification2 Pin Pin assignment Figure 2. nrf24l01 + pin assignment (top view) for the QFN20 4x4 packageCECSNSCKMOSIMISOVDDVSSANT2 ANT1 VDD_PAIRQVDDVSSXC2XC1 VSSDVDDVDDVSSIREF12345151413121167891016 17181920nRF24L01+QFN20 4X4 Revision 11 of 75nRF24L01+ Preliminary Product Pin functions Table 1. nrf24l01 + pin functionPinNamePin functionDescription1 CEDigital InputChip Enable Activates RX or TX mode2 CSND igital InputSPI Chip Select 3 SCKD igital InputSPI Clock4 MOSID igital InputSPI Slave Data Input5 MISOD igital OutputSPI Slave Data Output, with tri-state option6 IRQD igital OutputMaskable interrupt pin.

10 Active low7 VDDP owerPower Supply (+ - + DC)8 VSSP owerGround (0V)9XC2 Analog Output Crystal Pin 210XC1 Analog InputCrystal Pin 111 VDD_PAPower Output Power Supply Output (+ ) for the internal nrf24l01 + Power Amplifier. Must be con-nected to ANT1 and ANT2 as shown in Fig-ure interface 113 ANT2 RFAntenna interface 214 VSSP owerGround (0V)15 VDDP owerPower Supply (+ - + DC)16 IREFA nalog InputReference current. Connect a 22k resistor to ground. See Figure (0V)18 VDDP owerPower Supply (+ - + DC)19 DVDDP ower Output Internal digital supply output for de-coupling purposes. See Figure 29. 20 VSSP owerGround (0V)Revision 12 of 75nRF24L01+ Preliminary Product Specification3 Absolute maximum ratingsNote: Exceeding one or more of the limiting values may cause permanent damage to nrf24l01 +. Table 2. Absolute maximum ratingsOperating conditionsMinimumMaximumUnitsSupply voltageVOVSS to VDD VSS to VDDT otal Power DissipationPD (TA=85 C)60mWTemperaturesOperating Temperature-40+85 CStorage Temperature-40+125 CRevision 13 of 75nRF24L01+ Preliminary Product Specification4 Operating conditions Table 3.