硬件资料nrf24l01芯片资料英文

1、PRELIMINARY PRODUCT SPECIFICATIONnRF24L01Single chip 2.4 GHzTransceiverFEATURESAPPLICATIONSTrue single chip GFSK transceiver Complete OSI Link Layer in hardware Enhanced ShockBurstAuto ACK & retransmit Address and CRC computation On the air data rate 1 or 2MbpsDigital interface (SPI) speed 0-10 Mbps

2、 125 RF channel operationShort switching time enable frequency hopping Fully RF compatible with nRF24XX5V tolerant signal input pads20-pin package (QFN20 4x4mm) Uses ultra low cost +/- 60 ppm crystalUses low cost chip inductors and 2-layer PCB Power supply range: 1.9 to 3.6 VWireless mouse, keyboard

3、, joystick Keyless entryWireless data communicationAlarm and security systems Home automation SurveillanceAutomotive TelemetryIntelligent sports equipment Industrial sensorsToysGENERAL DESCRIPTIONnRF24L01 is a single chip radio transceiver for the world wide 2.4 - 2.5 GHz ISM band. The transceiver c

4、onsists of a fully integrated frequency synthesizer, a power amplifier, a crystal oscillator, a demodulator, modulator and Enhanced ShockBurst protocol engine. Output power, frequency channels, and protocol setup are easily programmable through a SPI interface. Current consumption is very low, only

5、9.0mAat an output power of -6dBm and 12.3mA in RX mode. Built-in Power Down Standby modes makes power saving easily realizable.QUICK REFERENCE DATAandTable 1 nRF24L01 quick reference dataNordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone +4772898900-Fax +4772898989November 200

6、5Page 1 of 38Revision: 1.1ParameterValueUnitMinimum supply voltage1.9VMaximum output power0dBmMaximum data rate2000kbpsSupply current in TX mode 0dBm output power11.3mASupply current in RX mode 2000 kbps12.3mATemperature range-40 to +85CSensitivity 1000 kbps-85dBmSupply current in Power Down mode900

7、nAPRELIMINARY PRODUCT SPECIFICATIONnRF24L01 Single Chip 2.4 GHz Radio TransceiverTable 2 nRF24L01 ordering informationBLOCK DIAGRAMXC1VSS=0V XC2VDD_PA=1.8VCELNAIRQCSN ANT1SCKGFSKFilter100+j175 WPAMISO ANT2MOSIIREF22kWFigure 1 nRF24L01 with external components.Nordic Semiconductor ASA - Vestre Rosten

8、 81, N-7075 Tiller, Norway -Phone +4772898900-Fax +4772898989November 2005Page 2 of 38Revision: 1.1DVDDVDDVDDIF BPFVDDVSS=0VVSS=0VVSS=0VFrequency SynthesiserDEMODClock Recovery, DataSlicerADDRDecodeCRCCode/DecodeFIFOIn/OutEnhanced ShockBurstTMType NumberDescriptionVersionnRF24L0120 pin QFN 4x4, lead

9、 free (green)AnRF24L01 ICBare DiceAnRF24L01-EVKITEvaluation kit (2 test PCB, 2 configuration PCB, SW)1.0PRELIMINARY PRODUCT SPECIFICATIONnRF24L01 Single Chip 2.4 GHz Radio TransceiverPIN FUNCTIONSTable 3 nRF24L01 pinfunctionPIN ASSIGNMENTVSSDVDDVDDVSSIREFCEVDDCSNVSSANT2SCKMOSIANT1MISOVDD_PAIRQVDDVSS

10、XC2XC1Figure 2 nRF24L01 pin assignment (top view) for a QFN20 4x4 package.Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone +4772898900-Fax +4772898989November 2005Page 3 of 38Revision: 1.1109876115124133142151nRF24L01QFN20 4x41617181920PinNamePin functionDescription1CEDigita

11、l InputChip Enable Activates RX or TX mode2CSNDigital InputSPI Chip Select3SCKDigital InputSPI Clock4MOSIDigital InputSPI Slave Data Input5MISODigital OutputSPI Slave Data Output, with tri-state option6IRQDigital OutputMaskable interrupt pin7VDDPowerPower Supply (+3V DC)8VSSPowerGround (0V)9XC2Analo

12、g OutputCrystal Pin 210XC1Analog InputCrystal Pin 111VDD_PAPower OutputPower Supply (+1.8V) to Power Amplifier12ANT1RFAntenna interface 113ANT2RFAntenna interface 214VSSPowerGround (0V)15VDDPowerPower Supply (+3V DC)16IREFAnalog InputReference current17VSSPowerGround (0V)18VDDPowerPower Supply (+3V

13、DC)19DVDDPower OutputPositive Digital Supply output for de-coupling purposes20VSSPowerGround (0V)PRELIMINARY PRODUCT SPECIFICATIONnRF24L01 Single Chip 2.4 GHz Radio TransceiverELECTRICAL SPECIFICATIONSConditions: VDD = +3V, VSS = 0V, TA = - 40C to + 85C1 All digital inputs handle up to 5.25V signal

14、inputs. Keep in mind that the VDD of the nRF24L01 must match the VIH of the driving device for output pins.2 Usable band is determined by local regulations3 Antenna load impedance = 100W+j175W4 Antenna load impedance = 100W+j175W. Effective data rate 1000kbps or 2000 kbps5 Antenna load impedance = 1

15、00W+j175W. Effective data rate 10kbps and full packetsNordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone +4772898900-Fax +4772898989November 2005Page 4 of 38Revision: 1.1SymbolParameter (condition)NotesMin.Typ.Max.UnitsOperating conditionsVDDSupply voltage1.93.03.6VTEMPOperati

16、ng Temperature-40+27+85CDigital input pinVIHHIGH level input voltage10.7VDD5.25VVILLOW level input voltageVSS0.3VDDVDigital output pinVOHHIGH level output voltage (IOH=-0.5mA)VDD- 0.3VDDVVOLLOW level output voltage (IOL=0.5mA)VSS0.3VGeneral RF conditionsfOPOperating frequency224002525MHzfXTALCrystal

17、 frequency16MHzDf1MFrequency deviation 1000kbps160kHzDf2MFrequency deviation 2000kbps320kHzRGFSKData rate ShockBurst02000kbpsFCHANNELChannel spacing 1000kbps1MHzFCHANNELChannel spacing 2000kbps2MHzTransmitter operationPRFMaximum Output Power30+4dBmPRFCRF Power Control Range161820dBPRFCRRF Power Accu

18、racy4dBPBW20dB Bandwidth for Modulated Carrier (2000kbps)2000kHzPRF11st Adjacent Channel Transmit Power 2MHz-20dBmPRF22nd Adjacent Channel Transmit Power 4MHz-50dBmIVDDSupply current 0dBm output power411.3mAIVDDSupply current -18dBm output power7.0mAIVDDAverage Supply current -6dBm output power, Enh

19、anced ShockBurst50.05mAIVDDSupply current in Standby-I mode32mAIVDDSupply current in power down900nAPRELIMINARY PRODUCT SPECIFICATIONnRF24L01 Single Chip 2.4 GHz Radio TransceiverTable 4 nRF24L01 RF specifications6 Data rate is 2000kbps for the following C/I measurements7 According to ETSI EN 300 22

20、0-1 V1.3.1 (2000-09) page 368 nRF24L01 equal modulation on interfering signal9 Data rate is 1000kbps for the following C/I measurements10 According to ETSI EN 300 220-1 V1.3.1 (2000-09) page 3611 nRF24L01 equal modulation on interfering signalNordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tille

21、r, Norway -Phone +4772898900-Fax +4772898989November 2005Page 5 of 38Revision: 1.1Receiver operationIVDDSupply current one channel 2000kbps12.3mAIVDDSupply current one channel 1000kbps11.8mARXSENSSensitivity at 0.1%BER (2000kbps)-82dBmRXSENSSensitivity at 0.1%BER (1000kbps)-85dBmC/ICOC/I Co-channel6

22、57/128dBC/I1ST1st Adjacent Channel Selectivity C/I 2MHz0/5dBC/I2ND2nd Adjacent Channel Selectivity C/I 4MHz-21/-19dBC/I3RD3rd Adjacent Channel Selectivity C/I 6MHz-27/-27dBC/ICOC/I Co-channel9710/1411dBC/I1ST1st Adjacent Channel Selectivity C/I 1MHz6/10dBC/I2ND2nd Adjacent Channel Selectivity C/I 2M

23、Hz-22/-20dBC/I3RD3rd Adjacent Channel Selectivity C/I 3MHz-30/-25dBPRELIMINARY PRODUCT SPECIFICATIONnRF24L01 Single Chip 2.4 GHz Radio TransceiverPACKAGE OUTLINEnRF24L01 uses the QFN20 4x4 package, with matt tin plating.Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone +47728

24、98900-Fax +4772898989November 2005Page 6 of 38Revision: 1.1PRELIMINARY PRODUCT SPECIFICATIONnRF24L01 Single Chip 2.4 GHz Radio TransceiverFigure 3 nRF24L01 Package Outline.12 BSC: Basic Spacing between Centers, ref. JEDEC standard 95, page 4.17-11/ANordic Semiconductor ASA - Vestre Rosten 81, N-7075

25、 Tiller, Norway -Phone +4772898900-Fax +4772898989November 2005Page 7 of 38Revision: 1.1Package TypeAA1A3KD/EeD2/E2LL1bSaw QFN20(4x4 mm)Min Typ. Max0.800.850.950.000.020.050.20REF.0.20min4.0 BSC120.5 BSC2.502.602.700.350.400.450.15max0.180.250.30PRELIMINARY PRODUCT SPECIFICATIONnRF24L01 Single Chip

26、2.4 GHz Radio TransceiverPackage marking:Abbreviations:DDDDDD BProduct number, e.g. 24L01Build Code, i.e. unique code for production sites, package type and test platformX grade, i.e. Engineering Samples (optional) 2 digit Year number2 digit Week number2 letter wafer lot number codeX YY WW LLAbsolut

27、e Maximum RatingsSupply voltagesVDDV to + 3.6VVSSVInput voltageVIV to 5.25VOutput voltageVOVSS to VDDTotal Power DissipationPD (TA=85C)60mWTemperaturesOperating Temperature. - 40C to + 85C Storage Temperature. - 40C to + 125CNote: Stress exceeding one or more of the damage to the device.limiting val

28、uesmay cause permanentATTENTION!Electrostatic Sensitive Device Observe Precaution forhandling.Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone +4772898900-Fax +4772898989November 2005Page 8 of 38Revision: 1.1nRFBXDDDDDDYYWWLLPRELIMINARY PRODUCT SPECIFICATIONnRF24L01 Single C

29、hip 2.4 GHz Radio TransceiverGlossary of TermsTable 5 GlossaryNordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone +4772898900-Fax +4772898989November 2005Page 9 of 38Revision: 1.1TermDescriptionACKAcknowledgementARTAuto Re-TransmitCEChip EnableCLKClockCRCCyclic Redundancy Check

30、CSNChip Select NOTESBEnhanced ShockBurstGFSKGaussian Frequency Shift KeyingIRQInterrupt RequestISMIndustrial-Scientific-MedicalLNALow Noise AmplifierLSBLeast Significant BitLSByteLeast Significant ByteMbpsMegabit per secondMCUMicro Controller UnitMISOMaster In Slave OutMOSIMaster Out Slave InMSBMost

31、 Significant BitMSByteMost Significant BytePCBPrinted Circuit BoardPERPacket Error RatePIDPacket Identity BitsPLDPayloadPRXPrimary RXPTXPrimary TXPWR_DWNPower DownPWR_UPPower UpRXReceiveRX_DRReceive Data ReadySPISerial Peripheral InterfaceTXTransmitTX_DSTransmit Data SentPRELIMINARY PRODUCT SPECIFIC

32、ATIONnRF24L01 Single Chip 2.4 GHz Radio TransceiverFUNCTIONAL DESCRIPTIONModes of operationThe nRF24L01 can be set in the following main modes depending on the level of the following primary I/Os and configuration registers:Table 6 nRF24L01 main modesAn overview of the nRF24L01 I/O pins in different

33、 modes is given in Table 7.Pin functions in the different modes of nRF24L01Table 7 Pin functions of the nRF24L01Standby ModesStandby-I mode is used to minimize average current consumption while maintaining short start up times. In this mode, part of the crystal oscillator is active. In Standby-II mo

34、de some clock buffers are active. Standby-II occurs when CE is held high on a PTX device with empty TX FIFO. The configuration word content is maintainedduring Standby modes. SPI interface may be activated. For start up time see Table 13.Power Down ModeIn power down nRF24L01 is disabled with minimal

35、 current consumption. When entering this mode the device is not active, but all registers values available from the SPI interface are maintained during power down and the SPI interface may be activated (CSN=0). For start up time see Table 13. The power down is controlled by the PWR_UP bit in the CON

36、FIG register.Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone +4772898900-Fax +4772898989November 2005Page 10 of 38Revision: 1.1Pin NameDirectionTX ModeRX ModeStandby ModesPower DownCEInputHigh Pulse 10msHighLow-CSNInputSPI Chip Select, active lowSCKInputSPI ClockMOSIInputSP

37、I Serial InputMISOTri-state OutputSPI Serial OutputIRQOutputInterrupt, active lowModePWR_UPregisterPRIM_RXregisterCEFIFO stateRX mode111-TX mode101Data in TX FIFOTX mode101 0Stays in TX mode until packet transmission is finishedStandby-II101TX FIFO emptyStandby-I1-0No ongoing packet transmissionPowe

38、r Down0-PRELIMINARY PRODUCT SPECIFICATIONnRF24L01 Single Chip 2.4 GHz Radio TransceiverPacket Handling MethodsnRF24L01 has the following Packet Handling Methods: ShockBurst (compatible with nRF2401, nRF24E1, nRF2402 and nRF24E2 with 1Mbps data rate, see page 24) Enhanced ShockBurstShockBurstShockBur

39、st makes it possible to use the high data rate offered by nRF24L01 without the need of a costly, high-speed microcontroller (MCU) for data processing/clock recovery. By placing all high speed signal processing related to RF protocol on-chip, nRF24L01 offers the application microcontroller a simple S

40、PI compatible interface, the data rate is decided by the interface-speed the micro controller itself sets up. By allowing the digital part of the application to run at low speed, while maximizing the data rate on the RF link, ShockBurst reduces the average current consumption in applications.In Shoc

41、kBurst RX, IRQ notifies the MCU when a valid address and payload is received respectively. The MCU can then clock out the received payload from an nRF24L01 RX FIFO.In ShockBurst TX, nRF24L01 automatically generates preamble and CRC, see Table 12. IRQ notifies the MCU that the transmission is complet

42、ed. All together, this means reduced memory demand in the MCU resulting in a low cost MCU, as well as reduced software development time. nRF24L01 has a three level deep RX FIFO (shared between 6 pipes) and a three level deep TX FIFO. The MCU can access the FIFOs at any time, in power down mode, in s

43、tandby modes, and during RF packet transmission. This allows the slowest possible SPI interface compared to the average datarate, and may enable usage of an MCU without hardware SPI.Enhanced ShockBurstEnhanced ShockBurst is a packet handling method with functionality that makes bi- directional link

44、protocol implementation easier and more efficient. In a typical bi- directional link, one will let the terminating part acknowledge received packets from the originating part in order to make it possible to detect data loss. Data loss can then be recovered by retransmission. The idea with Enhanced S

45、hockBurst is to let nRF24L01 handle both acknowledgement of received packets and retransmissions of lost packets, without involvement from the microcontroller.Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone +4772898900-Fax +4772898989November 2005Page 11 of 38Revision: 1.1P

46、RELIMINARY PRODUCT SPECIFICATIONnRF24L01 Single Chip 2.4 GHz Radio TransceiverTX3TX4TX2TX5TX1TX6RXFrequency Channel NFigure 4: nRF24L01 in a star network configurationAn nRF24L01 configured as primary RX (PRX) will be able to receive data trough 6 different data pipes, see Figure 4. A data pipe will

47、 have a unique address but share the same frequency channel. This means that up to 6 different nRF24L01 configured as primary TX (PTX) can communicate with one nRF24L01 configured as PRX, and the nRF24L01 configured as PRX will be able to distinguish between them. Data pipe 0 has a unique 40 bit con

48、figurable address. Each of data pipe 1-5 has an 8 bit unique address and shares the 32 most significant address bits. All data pipes can perform full Enhanced ShockBurst functionality.nRF24L01 will use the data pipe address when acknowledging a received packet. This means that nRF24L01 will transmit

49、 ACK with the same address as it receives payload at. In the PTX device data pipe 0 is used to received the acknowledge, and therefore the receive address for data pipe 0 has to be equal to the transmit address to be able to receive the acknowledge. See Figure 5 for addressing example.Nordic Semicon

50、ductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone +4772898900-Fax +4772898989November 2005Page 12 of 38Revision: 1.1PRELIMINARY PRODUCT SPECIFICATIONnRF24L01 Single Chip 2.4 GHz Radio TransceiverFigure 5: Example on how the acknowledgement addressing is doneAn nRF24L01 configured as PTX wi

51、th Enhanced ShockBurst enabled, will use the ShockBurst feature to send a packet whenever the microcontroller wants to. After the packet has been transmitted, nRF24L01 will switch on its receiver and expect an acknowledgement to arrive from the terminating part. If this acknowledgement fails to arri

52、ve, nRF24L01 will retransmit the same packet until it receives an acknowledgement or the number of retries exceeds the number of allowed retries given in the SETUP_RETR_ARC register. If the number of retries exceeds the number of allowed retries, this will show in the STATUS register bit MAX_RT and

53、gives an interrupt.Whenever an acknowledgement is received by an nRF24L01 it will consider the last transmitted packet as delivered. It will then be cleared from the TX FIFO, and the TX_DS IRQ source will be set high.With Enhanced ShockBurst nRF24L01 offers the following benefits:Highly reduced current consumption due to short time on air and sharp