AT86RF211SDK E2V, AT86RF211SDK Datasheet

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AT86RF211SDK

Manufacturer Part Number
AT86RF211SDK
Description
KIT DEV FOR AT86RF211/915MHZ
Manufacturer
E2V
Series
Smart RFr
Type
Transceiverr
Datasheet

Specifications of AT86RF211SDK

Frequency
915MHz
For Use With/related Products
AT86RF211 @ 915MHz
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
AT86RF211-DK
AT86RF211-DK915107
AT86RF211DK
AT86RF211DK915107
AT86RF211DK915107
Features
Description
The AT86RF211S is a shrink version of the AT86RF211. In addition to cost reduction,
the use of the latest RF Atmel process provides it with a high level of robustness and
performance (high output power) and significantly improves certain technical features
such as power consumption. This is a 100% AT86RF211-compatible product that can
be directly replaced in production, without redesigning the hardware or software. New
features are also available through the software (activated by the ADDFEAT bit).
Like the AT86RF211, this is a single-chip transceiver dedicated to low-power wireless
applications, optimized for licence-free ISM band operations from 400 to 950 MHz. Its
flexibility and unique level of integration make it a natural choice for any system
related to telemetry, remote controls, alarms, radio modems, Automatic Meter Read-
ing, hand-held terminals or high-tech games and appliances. The AT86RF211S
makes bi-directional communications affordable for applications such as secured
transmissions with hand-shake procedures, new features and services. The
AT86RF211S can easily be configured to provide the optimal solution for your applica-
tion: choice of external filters versus technical requirements (bandwidth, selectivity,
Up-compatibility with the AT86RF211
Shrink Version with a Current Consumption Reduction of 20%
Direct Replacement in Production
Migration Documentation/Kit Available for AT86RF211 Users
Multiband Transceiver: 400 to 950 MHz
Monochip RF Solution: Transmitter-Receiver-Synthesizer
Integrated PLL and VCO: no External Coil
Design Highly Resistant to Interference
Digital Channel Selection (200 Hz Steps)
Data Rates up to 100 kbps
Transparent Asynchronous or Synchronous Modes thanks to Built-in Clock Recovery
Three Data Slicer Modes Available: "External", "Internal", "Charge and Hold"
High Output Power Enabling Use of Low-Cost Printed Antennas:
FSK Modulation: Integrated Modulator and Demodulator
Meets Wideband Application Requirements in the USA (250 kHz)
Power Saving:
100% Digital Interface through R/W Registers Including:
Pb-Free and RoHS Compliant
– Same Features as AT86RF211 after Power-on Reset
– New Features Activated by a Bit (ADDFEAT)
– +14 dBm in 915 MHz Frequency Band
– +15 dBm in 868 MHz Frequency Band
– +16 dBm in 433 MHz Frequency Band
– Stand-alone "Sleep" Mode and "Wake-up" Procedures
– 8 Selectable Digital Levels for Output Power
– High Data Rate and Fast Settling Time of the PLL
– Low Power Oscillator Running Mode
– Fast Digital RSSI for Quick Channel Scanning
– V
– Digital Clock Output to Drive the Companion Microcontroller
CC
Readout
FSK
Transceiver for
ISM Radio
Applications
AT86RF211S
Rev. 5348B–WIRE–03/06
5348B–WIRE–03/06

Related parts for AT86RF211SDK

AT86RF211SDK Summary of contents

Page 1

Features • Up-compatibility with the AT86RF211 – Same Features as AT86RF211 after Power-on Reset – New Features Activated by a Bit (ADDFEAT) • Shrink Version with a Current Consumption Reduction of 20% • Direct Replacement in Production • Migration Documentation/Kit ...

Page 2

FHSS). The AT86RF211S is also well adapted to battery-operated systems can be powered with as little as 2.4V. It also offers a "wake-up" receiver feature ...

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Digital Signal Output DIGOUT 1.1.6 Charge and Hold Data Slicer Mode 1.2 Low-power Standby Modes 1.2.1 PDN Mode 1.2.2 XTAL Running 1.3 Asynchronous Transparent Transmit Mode 5348B–WIRE–03/06 Pin 17 was previously reserved and not connected, but can now deliver ...

Page 4

Asynchronous Transparent Receive Mode AT86RF211S 4 Figure 1-1. Asynchronous Transparent Transmit Mode SLE, SCK, SDATA (for set-up) 3 Companion Microcontroller Set up by the MCU in receive mode, the AT86RF211S demodulates any data available on the antenna. The data ...

Page 5

Synchronous Receive Modes 5348B–WIRE–03/06 Figure 1-2. Asynchronous Transparent Receive Mode SLE, SCK, SDATA (for set-up) 3 Companion Microcontroller DATAMSG Using a UART controller is a good solution in this case. NRZ or Manchester coding is possible, but is to ...

Page 6

Wake-up Mode AT86RF211S 6 Figure 1-3. Synchronous Receive Mode SLE, SCK, SDATA (for set-up) 3 Companion Microcontroller DATAMSG DATACLK The chip is set- special Rx mode called sleep mode. The chip wakes up periodi- cally thanks to ...

Page 7

Figure 1-4. Wake-up Overview Step 2: The chip wakes up periodically, waiting for an expected message (stand-alone operation) Step 1: The chip is set-up in sleep mode using the 3-wire interface (SLE, SCK, SDATA), then the microcontroller goes to sleep, ...

Page 8

Selecting the Operating Mode Figure 1-6. Flowchart AT86RF211S 8 5348B–WIRE–03/06 ...

Page 9

Block Diagram Figure 1-7. AT86RF211S Block Diagram RF FILTER These are the only blocks that depend on the selected ISM band (433, 868 or 915 MHz): dual band applications can be done by only switching them. Synthesizer, loop filter, ...

Page 10

Pin Description Table 1-1. Pinout Pin Name Comments 1 RPOWER Full-scale output power resistor 2 TXGND1 GND input/output 4 TXGND2 GND 5 TXGND3 GND 6 TXGND4 GND 7 TXVCC VCC 8 TXGND5 GND 9 DIGND GND ...

Page 11

Detailed Description 2.1 Frequency Synthesis 2.1.1 Crystal Reference Oscillator Figure 2-2. Typical Networks XTAL1 ( 6.5/30 pF 5348B–WIRE–03/06 The reference clock is based on a classic Colpitts architecture ...

Page 12

Table 2-1. XTO Frequencies Reference Clock Frequency IF1 Frequency 10.245 MHz 10.7 MHz 20.500 MHz (RF211S mode 10.7 MHz only) 20.945 MHz 21.4 MHz 2.1.2 Microcontroller Clocking Capability AT86RF211S 12 Possible IF1 Bandwidth Up to 380 kHz Up to 380 ...

Page 13

Figure 2-3. MCU Clocking Capability SLE, SCK, SDATA for Setup MCU Internal Slow Clock 2.1.3 Synthesizer 5348B–WIRE–03/06 AT86RF211S 3 Buffered XTO Output DIGOUT MCU crystal can be spared Refer to “Control Logic” on page 34 for more information. A high-speed, ...

Page 14

Receiver Description 2.2.1 Overview and Choice of Intermediate Frequencies 2.2.2 Rx/Tx Switch AT86RF211S 14 Figure 2-5. Choosing the Loop Filter Values Pin 41 FILT1 C1 Data Rate C1 Low 220 pF 2.2 nF Medium 560 pF 5.6 nF High ...

Page 15

Image Rejection and RF Filter Figure 2-6. Typical 50Ω SAW Filter Implementation in the 868 MHz Bandwidth SWOUT (pin 48) SPST Switch 2.2.4 First LNA/Mixer 5348B–WIRE–03/06 The immunity of the AT86RF211S can be improved with an external band-pass filter. ...

Page 16

IF1 filtering 2.2.6 IF1 Gain and Second Mixer AT86RF211S 16 Figure 2-7. Schematic Input of the LNA RXIN Figure 2-8. Schematic Output of the Mixer The first mixer translates the input RF signal down to 10.7 or 21.4 MHz, ...

Page 17

IF1 Narrow Bandwidth Filters 5348B–WIRE–03/06 Figure 2-9. IF1 Filtering IF1OUT (pin 36) 330 Ω Figure 2-10. Schematic Input of the IF1 Amplifier IF1IN IF1DEC Figure 2-11. Schematic Output of the Second Mixer IF1 and IF2 filters can be replaced ...

Page 18

IF2 Filtering and Gain 2.2.9 IF2 Amplifier Chain AT86RF211S 18 IF2 filtering provides a narrow channel selection IF2 filter is not used, it should be replaced by a coupling capacitor superior to 1 nF, the IF1 filter ...

Page 19

RSSI Output 5348B–WIRE–03/06 Figure 2-13. Input of the IF2 Amplifier IF2IN IF2DEC The RSSI value can be read as a 6-bit word in the Status register. Its value is given in dB and is linear as shown in Figure ...

Page 20

Table 2-3. RSSI Clocking Options Bits Mode RSSICLK RF211S only 11 RF211S only 10 RF211S only 01 RF211 or RF211S 00 2.2.11 FSK Demodulator AT86RF211S 20 The RSSI’s dynamic range from a -95 dBm to -45 dBm ...

Page 21

Table 2-4. Discriminator Bandwidth Selection Applicable Name Mode RF211 NDB RF211S RF211 SDB RF211S MDB RF211S WDB RF211S Note: Please refer to the Application Note 5348B–WIRE–03/06 Figure 2-16. FSK Demodulator Schematic Fin RBW F D The oscillator’s natural frequency is ...

Page 22

Data Slicer 2.2.12.1 External Mode 2.2.12.2 Internal Mode AT86RF211S 22 Hereafter is an example of a possible configuration in the 600 kHz-wide 868 to 868.6 MHz European sub-band, in which the European standard EN 300 220 is applicable: • ...

Page 23

Figure 2-18. Data Slicing Parameters Setup Example DISCOUT: Demodulated Data 5348B–WIRE–03/06 Figure 2-17. Data Slicer Schematics DATAMSG + - Choice of internal or external reference for the data slicer To operate this way, one must make sure that the 0 ...

Page 24

Charge and Hold Mode Figure 2-19. Charge and Hold Mode Schematics Demodulator Output (DSIN) DAC AT86RF211S 24 After a single charge phase (for example, during a preamble), the comparison threshold of the data slicer is stored in the external ...

Page 25

Transmitter Description 2.2.13 Power Amplification Figure 2-21. Output Matching of the Power Amplifier Power Supply Filtering Vcc RF PA Output 5348B–WIRE–03/06 The Power Amplifier has been built to deliver more than 14 dBm ( the three most common ...

Page 26

Hardware Control AT86RF211S 26 An Automatic Level Control (ACL) loop is integrated to minimize the PA’s sensitivity to temperature, process and power supply variations. For instance, at 85°C, the output power is approximately 2 dB less than at 25°C. ...

Page 27

Software Control 5348B–WIRE–03/06 Table 2-5. Power Levels According to R RPOWER 433 MHz 5.6 kΩ +16 18 kΩ +13 33 kΩ +9 Note: Figures are given for V = 3V, temperature = 25°C, TXLVL = 111, best matching. CC ...

Page 28

Digital Features 2.3.1 Clock Recovery Function 2.3.1.1 Preamble 2.3.1.2 Algorithm Overview AT86RF211S 28 The clock recovery algorithm in the AT86RF211S has been improved and the new algo- rithm must be used. To use the new algorithm: 1. Put the ...

Page 29

Figure 2-25. Clock Recovery DATAMSG DATACLK 2.3.2 Data Rate Programming 5348B–WIRE–03/06 CLK signal is available as soon as the DATACLK bit is programmed, regardless of the state of the DATAMSG pin. The programmed data rate enables the creation of a ...

Page 30

Data Tolerance Programming 2.3.4 Recommended Values Table 2-9. Clock Recovery Recommended Settings Maximum Number of DATATOL Preamble Bytes for Sync 2% 4 bytes of $ recommended 2 bytes of $ byte of $55 Note: 1. ...

Page 31

Data Resynchronization Figure 2-27. Benefits of Resynchronization Case No resynchronization DATAMSG DATACLK Center of bit 5348B–WIRE–03/06 Figure 2-26. Clock Recovery Target Position DATAMSG DATACLK First random position of clock's rising edge Target position of clock's rising edge ...

Page 32

PLL Lock Detect 2.4 Wake-up Mode 2.4.1 WPER Programming Table 2-11. Wake Up Period Programming WPER[8:0] WPER[8:7] (000) (00 (001) (00 – (00) 10 (07e) (00 (07f) (00 AT86RF211S 32 The ...

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Table 2-11. Wake Up Period Programming WPER[8:0] WPER[8:7] (101) or (081) (10) or (01 (102) or (082) (10) or (01 – (10) or (01) 2 (17e) or (0fe) (10) or (01 ...

Page 34

Control Logic 2.5.1 Serial Data Interface 2.5.1.1 Register Interface Format AT86RF211S 34 Table 2-13. WL2 Programming WL2[2:0] Period (000 (001) 1 × WL1 2 (010) 2 × WL1 2 (011) 3 × WL1 2 (100) 4 × ...

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WRITE Mode (R Figure 2-28. Write Chronogram: Complete Write Cycle in a 10-bit Register A[3] A[ Figure 2-29. Write Chronogram: Partial Write Cycle, Writing 2 bits ...

Page 36

READ Mode (R Figure 2-30. Read Chronogram: Complete Read Cycle from a 10-bit Register SLE SCK SDATA A[3] A[2 ] SDATA INPUT Direction AT86RF211S 36 The address and R/W bits are clocked on the rising edge of ...

Page 37

Figure 2-32. Chronogram with Timing tdle SLE T SCK SDATA A[3] A[2 ] SDATA INPUT Direction 2.5.2 Registers Table 2-14. Register Overview Name Address A[3:0] F0 (0000 (0001 (0010 (0011) 2 CTRL1 (0100) 2 ...

Page 38

Table 2-14. Register Overview Name Address A[3:0] - (1101 (1110) 2 CTRL2 (1111) 2 Note: All the registers must be reprogrammed after the voltage supply has been removed, otherwise they will remain in the default state 2.5.2.1 Reset ...

Page 39

Name TXLVL TXFS - nbit 14- (000 ) init Register reset value = (10000270 Table 2-16. CTRL1 Detailed Description Number Name of Bits Comments General power-down 0: power down mode; only the serial interface is ...

Page 40

Table 2-16. CTRL1 Detailed Description Number Name of Bits Comments Value RSSI hysteresis HRSSI output power selection (000) : minimum transmission level 2 TXLVL 3 (111) : maximum transmission level 2 Tx frequency selection 0: F0 & ...

Page 41

While V is being measured possible to measure the DC output of the discriminator Description of RSSI measurement with hysteresis mechanism: if the RSSI measurement is higher than the high RSSI level, DATAMSG is validated ...

Page 42

Frequency Registers AT86RF211S 42 . Table 2-19. Overview Name F0, F1, F2, F3 Table 2-20. Detailed Description Number Name of bits Comments Frequency code value default register in TX mode ("0" code in FSK modulation) Frequency ...

Page 43

Status Register 5348B–WIRE–03/06 In reception mode, only one frequency needs to be programmed. In transmission mode, two different registers F0 and and F3 must be programmed for 0 code and 1 code transmission. The DATAMSG pin ...

Page 44

DTR Register AT86RF211S 44 Table 2-23. Detailed Description Number Name of bits Comments PLL Lock flag 0: PLL unlocked PLLL 1 1: PLL locked Measured RSSI level MRSSI 6 Measured V MOFFSET = 1 MVCC 6 WAKEUP flag Copy ...

Page 45

Table 2-26. DTR Overview in RF211S Mode Name XTALRUN SELCH nbit 31-30 29 init 00 0 Name PORTEN PORTPOL nbit 20 19 init 0 0 5348B–WIRE–03/06 Table 2-24. Overview in RF211 Mode Name DSREF[3:0] nbit init The register’s reset value ...

Page 46

Name WUSYNC WUHEAD nbit 10 init 0 Table 2-27. DTR Detailed Description in RF211S Mode Number of Name bits XTALRUN 2 SELCH 1 HOLDMODE 1 XTAL205M 1 DISCRANGE 2 DISCLPF 1 RSSICLK 2 – 1 PORTEN 1 AT86RF211S 46 - ...

Page 47

Table 2-27. DTR Detailed Description in RF211S Mode (Continued) Number of Name bits PORTPOL 1 PORTSEL 3 CLKOUTPUT 2 NEWDATACLK 1 SYNCDATAMSG 1 DATACLKEN 1 WUSYNC 1 WUHEAD 1 – 3 5348B–WIRE–03/06 Comments DIGOUT pin polarity 0 : low level ...

Page 48

Table 2-27. DTR Detailed Description in RF211S Mode (Continued) Number of Name bits DSREF 4 DISCHIGH 1 DISCLOW 1 2.5.2.8 Wake-up Control Register Table 2-28. WUC Overview Name WUE DATA nbit 31 30 init 0 1 Name WL2 nbit 5-3 ...

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Table 2-29. WUC Detailed Description Number Name of bits Comments Wake-up function enable Returns to “0” when a valid message is received. 0: wake-up disable WUE 1 1: wake-up enable Data content 0: message without data field DATA 1 1: ...

Page 50

Table 2-29. WUC Detailed Description (Continued) Number Name of bits Comments Minimum delay between TEST 1 and TEST 2 (check of header detection) Variable as multiple of WL1 from × WL1 WL2 3 Inhibit stuff mechanism 0: ...

Page 51

Table 2-31. WUR Detailed Description Name Number of bits RATECHK 1 RATE 10 RATETOL 5 2.5.2.10 Wake Up Address Register (WUA) Table 2-32. WUA Overview Name nbit init Table 2-33. WUA Detailed Description Name Number of bits ADDL 5 ADD ...

Page 52

Wake-up Data Register (WUD) Table 2-34. WUD Overview Name nbit Table 2-35. WUD Detailed Description Name Number of bits Comments Wake-up message data Warning: the length of this register is variable: WUD Length * case fixed data length (STOP ...

Page 53

Table 3-3. Digital CMOS DC Characteristics (unless otherwise specified, data is given for T = 25°C and V Name Parameter CMOS low level input voltage (2) Vil - Normal input (3) - Schmitt trigger input CMOS high level input voltage ...

Page 54

Table 3-4. Timings Name Parameter CMOS rise/fall times F SCK frequency T SCK period tw SCK low or high time tsd SDATA setup before SCK rising thd SDATA hold after SCK rising SDATA output propagation delay after ...

Page 55

Table 3-5. Synthesizer Specification (unless otherwise specified, data is given for T = 25°C, V Parameter Frequency range Phase noise at 50 kHz Phase noise at 100 kHz Phase noise at 1 MHz Note: 1. iThe crystal frequency can be ...

Page 56

Table 3-6. Receiver Specification (unless otherwise specified, data is given for T = 25°C and V Parameter Min Internal switch insertion loss Internal switch isolation Impedance of internal switch 433MHz Impedance of internal switch 868MHz Impedance of internal switch 915MHz ...

Page 57

Note: 1. The overall sensitivity depends on the measurement conditions and external components i.e.-102 dBm for BW = ±10 kHz, ∆F = ±7.5 kHz, Brate = 4800 bps with RF switch used and external SAW filter 2. No shielding, 2-layer ...

Page 58

Figure 3-2. Typical Supply Current in Rx Mode 28.0 26.0 24.0 22.0 2.25 2.5 Table 3-7. Transmitter Specification (unless otherwise specified, data is given for T = 25°C, V and kΩ) POWER Parameter Output power Output power ...

Page 59

Table 3-7. Transmitter Specification (unless otherwise specified, data is given for T = 25°C, V and kΩ) POWER Parameter Range of modulation bandwidth Spurious emissions Spurious emissions Spurious emissions Note: 1. Output power for R = 5.6 ...

Page 60

AT86RF211S 60 Figure 3-4. Typical Expected Detailed Current in Tx Mode 434 MHz 25.00 20.00 15.00 10.00 5.00 0.00 2.25 2.50 2.75 3.00 3.25 3.50 Vsupply (V) PA TXVCC EVCC2 EVCC1 CVCC2 CVCC1 RXVCC DIVCC 5348B–WIRE–03/06 ...

Page 61

Typical Application 4.1 Implementation Rpower ANTENNA Note: Accurate information regarding the parts and values of the components to be used with the AT86RF211S is described in our Application Note “AT86RF211S FSK ...

Page 62

Layout 4.2.1 Reference Design – Top Layer Each unused area must be filled with copper and connected to the bottom side ground plane Decoupling capacitors remain close to the supply pins 4.2.2 Reference Design – Bottom Layer One-block ground ...

Page 63

Packaging Information Figure 5-1. 48-lead TQFP Top View Table 5-1. Packaging Description Dimension Nominal Value (mm) A 1.60 A1 0.05 min/0.15 max A2 1.40 D 9.00 D1 7.00 E 9.00 E1 7.00 L 0.60 e ...

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AT86RF211S 64 5348B–WIRE–03/06 ...

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Table of Contents Features ..................................................................................................... 1 Description ................................................................................................ 1 1 General Overview ..................................................................................... 2 2 Detailed Description .............................................................................. 11 3 Electrical Specification .......................................................................... 52 4 Typical Application ................................................................................ 61 5 Packaging Information .......................................................................... 63 6 Ordering Information ............................................................................. 63 Table ...

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Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131, USA Tel: 1(408) 441-0311 Fax: 1(408) 487-2600 Regional Headquarters Europe Atmel Sarl Route des Arsenaux 41 Case Postale 80 CH-1705 Fribourg Switzerland Tel: (41) 26-426-5555 Fax: (41) 26-426-5500 Asia Room 1219 ...

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