nRF2402 Nordic VLSI, nRF2402 Datasheet
nRF2402
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nRF2402 Summary of contents
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... Low supply current, typical 10mA peak @ -5dBm output power World wide use nRF2402 is a single-chip radio transmitter for the world wide 2.4 - 2.5 GHz ISM band. The transmitter consists of a fully integrated frequency synthesizer, a power amplifier, a crystal oscillator and a modulator. Output power and frequency channel is easily programmable by use of the 3-wire interface. Current consumption is very low, only output power of -5dBm. Built-in ShockBurst™ ...
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... PRODUCT SPECIFICATION CE ShockBurst PWR_UP FIFO In VSS=0V CRC Code GFSK DIN Filter 3-wire CLK 3-wire Interface Programming Interface CS Figure 1 nRF2402 with external components Input 2 CS Input 3 CLK Input 4 DIN Input 5 VSS Power 6 XC2 Output 7 XC1 Input 8 VDD Power 9 VSS_PA Power 10 ANT1 ...
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... PRODUCT SPECIFICATION PWR_UP CLK 4 DIN Figure 2. nRF2402 pin assignment (top view). Nordic VLSI ASA - Vestre Rosten 81, N-7075 Tiller, Norway Revision: 1.0 VSS IREF VDD QFN16 4x4 VSS XC2 XC1 VDD - Phone +4772898900 Page VDD_PA ...
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... Data rate must be either 250kbps or 1000kbps. 4) Antenna load impedance = 400 5) Antenna load impedance = 400 . Effective data rate 250kbps or 1Mbps. 6) Antenna load impedance = 400 . Effective data rate 10kbps. Table 4 nRF2402 electrical specifications Nordic VLSI ASA - Vestre Rosten 81, N-7075 Tiller, Norway Revision: 1 40º 85º ...
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... PRODUCT SPECIFICATION nRF2402, uses the QFN16 4x4 package. Dimensions are in mm. QFN16 0.8 0.0 (4x4 mm) 1 0.05 Nordic VLSI ASA - Vestre Rosten 81, N-7075 Tiller, Norway Revision: 1.0 0.75 0.23 0.3 4 BSC 4 BSC 1 0.38 Figure 3 nRF2402 Package outline. - Phone +4772898900 Page 0.75 0.7 0.45 0.65 BSC 0.55 2.25 2.25 0.75 - Fax +4772898989 August 2003 45 REF ...
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... VDD + 0. ......................- 0.3V to VDD + 0. =85 C).............................. 35mW D A Operating Temperature… Storage Temperature…... - 125 C Electrostatic Sensitive Device Observe Precaution for handling. Nordic VLSI ASA - Vestre Rosten 81, N-7075 Tiller, Norway Revision: 1.0 - Phone +4772898900 Page Fax +4772898989 August 2003 ...
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... GFSK Gaussian Frequency Shift Keying ISM Industrial-Scientific-Medical MCU Micro Controller Unit OD Overdrive PWR_DWN Power Down PWR_UP Power Up RX Receive ST_BY Standby TX Transmit Nordic VLSI ASA - Vestre Rosten 81, N-7075 Tiller, Norway Revision: 1.0 Table 5 Glossary - Phone +4772898900 Page Fax +4772898989 August 2003 ...
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... PRODUCT SPECIFICATION Table 6 provides an overview of the different modes that the nRF2402 may be set to. Mode Transmit Configuration Stand By Power Down Table 6 Overview of Operational Modes of nRF2402. The nRF2402 has two transmit modes: ShockBurst™ Direct Mode The device functionality in these modes is determined by the content of a configuration word. This configuration word is presented in the configuration section. The ShockBurst™ ...
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... PRODUCT SPECIFICATION When the nRF2402 is configured in ShockBurst™, TX operation is conducted in the following way (10 kbps for this example only). Continuous 10kbps Figure 4 Clocking in data with MCU and sending with ShockBurst technology Without ShockBurst 10mA periode Figure 5 Current consumption with and without ShockBurst technology MCU interface pins: CE, CLK, DIN 1 ...
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... Adding Preamble nRF2402 Sending TM ShockBurst Package (250 or 1000kbps) YES NO Sending completed? Figure 6 Flow Chart ShockBurst™ Transmit of nRF2402 with CRC and preamble. Nordic VLSI ASA - Vestre Rosten 81, N-7075 Tiller, Norway Revision: 1.0 Data content of registers: ADDR PAYLOAD Maximum 256 bits ADDR PAYLOAD ...
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... PRODUCT SPECIFICATION In direct mode the nRF2402 works like a traditional RF device. Data must be at 1Mbps, or 250kbps for the receiver (nRF2401/nRF24E1) to detect the signals. MCU interface pins: CE, DIN 1. When application MCU has data to send, set CE high 2. The nRF2402 RF front end is now immediately activated, and after 200 s settling time, data will modulate the carrier directly ...
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... The configuration word in ShockBurst™ enables the nRF2402 to handle the RF protocol (in co-operation with nRF2401/nRF24E1). Once the protocol is completed and loaded into nRF2402 only seven bits, also used in direct mode, needs to be updated during operation. The configuration bits dedicated to ShockBurst™ follows: Preamble: Generation of preamble in transmitted data ...
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... On the negative edge of CS, the nRF2402 updates the number of bits actually shifted in during the last configuration. Ex: If the nRF2402 configured for Preamble and CRC in ShockBurst™, a total of 17 bits must be shifted in during the first configuration after VDD is applied. Once the wanted "protocol", modus and RF channel are set there is no need to update this part of the configuration during operation ...
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... The MSB bit should be loaded first into the configuration register. Default configuration word: h3.0F02. %LW PLL: For test purposes the PLL may be closed (non-operational). Logic 0: Open loop (normal operation) Logic 1: Closed loop (test only) %LW Not used: Nordic VLSI ASA - Vestre Rosten 81, N-7075 Tiller, Norway Revision: 1.0 D14 CRC Default 0 D7 ...
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... PRE_L: Selecting bit Preamble. Logic 0: 4 bit Preamble. Logic 1: 8 bit Preamble %LW CRC_L: CRC length to be calculated by nRF2402 in ShockBurst™. Logic 0: 8 bit CRC (default) Logic 1: 16 bit CRC %LW CRC_EN: Enables on-chip CRC generation (TX) Logic 0: On-chip CRC generation disabled (default) ...
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... PRODUCT SPECIFICATION %LW OD: Logic 0: 250 kbps data rate Logic 1: 1 Mbps data rate NOTE: 1Mbps requires 16MHz crystal. %LW XO_F: Selects the nRF2402 crystal frequency to be used Table 11 Crystal frequency setting. %LW RF_PWR: Sets nRF2402 RF output power: Table 12 RF output power setting. ...
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... PRE-AMBLE ADDRESS Figure 8 Data Package Diagram The data packet for both ShockBurst™ mode and direct mode communication is divided into 4 sections. These are: Nordic VLSI ASA - Vestre Rosten 81, N-7075 Tiller, Norway Revision: 1.0 PAYLOAD The preamble field is a requirement for ShockBurst™ and Direct modes ...
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... Delay between edges Setup time Hold time Delay to finish internal GFSK data Minimum input clock high Table 15 Switching times for nRF2402 When the nRF2402 is powered up it must always settle in stand by for 3ms before it can enter configuration or active mode. PWR_UP CS CE CLK ...
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... When one or more of the bits in the configuration word needs to be changed the following timing apply. PWR_UP CS CE CLK DIN Figure 11 Timing Diagram of Configuration Mode If configuration mode is entered from power down, CS can be set high after Tpd2sby as shown in Figure 9. Nordic VLSI ASA - Vestre Rosten 81, N-7075 Tiller, Norway Revision: 1.0 ‡Ã2à CLK MSB ...
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... PRODUCT SPECIFICATION ‡Ã2à PWR_UP CS CE CLK DIN ANT1/ANT2 Td Figure 12 Timing of ShockBurst™ in nRF2402. The package length and the data rate give the delay Toa (time on air), as shown in the equation Nordic VLSI ASA - Vestre Rosten 81, N-7075 Tiller, Norway Revision: 1.0 ...
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... PWR_UP CS CE CLK DIN ANT1/ANT2 Td Figure 13 Timing Diagram of Direct Mode In direct mode the input data will be sampled by nRF2402 and therefore no clock is needed. The clock must be stable at low level during transmission due to noise considerations. The exact delay T 194 / Nordic VLSI ASA ...
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... Lower load impedance (for instance 50 obtained by fitting a simple matching network transformer (balun Conditions: VDD = 3.0V, VSS = 0V, T Table 16 RF output power setting for the nRF2402. Tolerance includes initially accuracy and tolerance over temperature and aging. 4 12pF 8 12pF 12 ...
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... Nordic VLSI ASA for any damages resulting from such improper use or sale. Product Specification: Revision Date: 25/08/2003. Datasheet order code: 250803-nRF2402. All rights reserved ®. Reproduction in whole or in part is prohibited without the prior written permission of the copyright holder. ...
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... PRODUCT SPECIFICATION Nordic VLSI ASA - Vestre Rosten 81, N-7075 Tiller, Norway Revision: 1.0 - Phone +4772898900 Page Fax +4772898989 August 2003 ...
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PRODUCT SPECIFICATION Vestre Rosten 81, N-7075 Tiller, Norway Phone: + 00, Fax: + Revision 1.0 QhtrÃ!$ÂsÃ!$ August 2003 ...