Narrow-Band Transceiver. ADF7021-N Datasheet

ADF7021-N Transceiver. Datasheet pdf. Equivalent

ADF7021-N Datasheet
Recommendation ADF7021-N Datasheet
Part ADF7021-N
Description High Performance Narrow-Band Transceiver
Feature ADF7021-N; Data Sheet FEATURES Low power, narrow-band transceiver Frequency bands using dual VCO 80 MHz to 650 .
Manufacture Analog Devices
Datasheet
Download ADF7021-N Datasheet




Analog Devices ADF7021-N
Data Sheet
FEATURES
Low power, narrow-band transceiver
Frequency bands using dual VCO
80 MHz to 650 MHz
842 MHz to 916 MHz
Programmable IF filter bandwidths of
9 kHz, 13.5 kHz, and 18.5 kHz
Modulation schemes: 2FSK, 3FSK, 4FSK, MSK
Spectral shaping: Gaussian and raised cosine filtering
Data rates supported: 0.05 kbps to 24 kbps
2.3 V to 3.6 V power supply
Programmable output power
−16 dBm to +13 dBm in 63 steps
Automatic power amplifier (PA) ramp control
Receiver sensitivity
−130 dBm at 100 bps, 2FSK
−122 dBm at 1 kbps, 2FSK
On-chip image rejection calibration
High Performance
Narrow-Band Transceiver IC
ADF7021-N
On-chip VCO and fractional-N PLL
On-chip, 7-bit ADC and temperature sensor
Fully automatic frequency control loop (AFC)
Digital received signal strength indication (RSSI)
Integrated Tx/Rx switch
0.1 µA leakage current in power-down mode
APPLICATIONS
Narrow-band, short range device (SRD) standards
ARIB STD-T67, ETSI EN 300 220, Korean SRD standard,
FCC Part 15, FCC Part 90, FCC Part 95
Low cost, wireless data transfer
Remote control/security systems
Wireless metering
Wireless medical telemetry service (WMTS)
Home automation
Process and building control
Pagers
RLNA
RSET
FUNCTIONAL BLOCK DIAGRAM
CE CREG(1:4)
TEMP
SENSOR
MUX
7-BIT ADC
LDO(1:4)
MUXOUT
TEST MUX
RFIN
RFINB
LNA
IF FILTER
RSSI/
LOG AMP
2FSK
3FSK
4FSK
DEMODULATOR
CLOCK
AND DATA
RECOVERY
Tx/Rx
CONTROL
GAIN
PA RAMP
AGC
CONTROL
AFC
CONTROL
SERIAL
PORT
RFOUT
÷1/÷2
VCO1
÷2
DIV P
N/N + 1
Σ-Δ
MODULATOR
VCO2
MUX
CP PFD
DIV R
OSC
2FSK
3FSK
4FSK
MOD CONTROL
CLK
DIV
GAUSSIAN/
RAISED COSINE
FILTER
3FSK
ENCODING
TxRxCLK
TxRxDATA
SWD
SLE
SDATA
SREAD
SCLK
L1 L2 VCOIN CPOUT
OSC1 OSC2
Figure 1.
CLKOUT
Rev. B
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Analog Devices ADF7021-N
ADF7021-N* PRODUCT PAGE QUICK LINKS
Last Content Update: 02/23/2017
COMPARABLE PARTS
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EVALUATION KITS
ADF7021-N Evaluation Boards
DOCUMENTATION
Application Notes
AN-0987: Designing a Wireless Transceiver System to
Meet the Wireless M-Bus Standard
AN-1182: Understanding and Optimizing the AFC Loop on
the ADF7021 for Minimum Preamble
AN-1258: Image Rejection Calibration on the ADF7021,
ADF7021-N, and ADF7021-V
AN-1285: ADF7021-N Radio Performance for Wireless
Meter-Bus (WM-Bus), Mode N
AN-1389: Recommended Rework Procedure for the Lead
Frame Chip Scale Package (LFCSP)
AN-771: ADSP-BF533 EZ-KIT Lite and ADF70xx Interface
AN-772: A Design and Manufacturing Guide for the Lead
Frame Chip Scale Package (LFCSP)
AN-852: Using the Test DAC on the ADF702x to
Implement Functions Such as Analog FM DEMOD, SNR
Measurement, FEC Decoding, and PSK/4FSK
Demodulation
AN-859: RF Port Impedance Data, Matching, and External
Component Selection for the ADF7020-1, ADF7021, and
ADF7021-N
AN-915: CDR Operation for ADF7020, ADF7020-1,
ADF7021, and ADF7025
Data Sheet
ADF7021-N: High Performance Narrow-Band Transceiver
IC Data Sheet
SOFTWARE AND SYSTEMS REQUIREMENTS
ADF70xx Evaluation Software
ADIismLINK Development Platform
TOOLS AND SIMULATIONS
ADIsimSRD Design Studio
REFERENCE MATERIALS
Solutions Bulletins & Brochures
Emerging Energy Applications Solutions Bulletin, Volume
10, Issue 4
Technical Articles
Low Power, Low Cost, Wireless ECG Holter Monitor
RF Meets Power Lines: Designing Intelligent Smart Grid
Systems that Promote Energy Efficiency
Smart Metering Technology Promotes Energy Efficiency
for a Greener World
The Use of Short Range Wireless in a Multi-Metering
System
Understand Wireless Short-Range Devices for Global
License-Free Systems
Wireless Short Range Devices and Narrowband
Communications
Wireless Technologies for Smart Meters: Focus on Water
Metering
DESIGN RESOURCES
ADF7021-N Material Declaration
PCN-PDN Information
Quality And Reliability
Symbols and Footprints
DISCUSSIONS
View all ADF7021-N EngineerZone Discussions.
SAMPLE AND BUY
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TECHNICAL SUPPORT
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number.
DOCUMENT FEEDBACK
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Analog Devices ADF7021-N
ADF7021-N
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 3
General Description ......................................................................... 4
Specifications..................................................................................... 5
RF and PLL Specifications........................................................... 5
Transmission Specifications........................................................ 6
Receiver Specifications ................................................................ 7
Digital Specifications ................................................................. 10
General Specifications ............................................................... 11
Timing Characteristics .............................................................. 12
Timing Diagrams........................................................................ 13
Absolute Maximum Ratings.......................................................... 16
ESD Caution................................................................................ 16
Pin Configuration and Function Descriptions........................... 17
Typical Performance Characteristics ........................................... 19
Frequency Synthesizer ................................................................... 23
Reference Input........................................................................... 23
MUXOUT.................................................................................... 24
Voltage Controlled Oscillator (VCO) ...................................... 25
Choosing Channels for Best System Performance................. 26
Transmitter ...................................................................................... 27
RF Output Stage.......................................................................... 27
Modulation Schemes.................................................................. 27
Spectral Shaping ......................................................................... 29
Modulation and Filtering Options ........................................... 30
Transmit Latency ........................................................................ 30
Test Pattern Generator............................................................... 30
Receiver Section.............................................................................. 31
RF Front End............................................................................... 31
IF Filter ........................................................................................ 31
RSSI/AGC.................................................................................... 31
Data Sheet
Demodulation, Detection, and CDR ....................................... 33
Receiver Setup............................................................................. 35
Demodulator Considerations ................................................... 37
AFC Operation ........................................................................... 37
Automatic Sync Word Detection (SWD)................................ 38
Applications Information .............................................................. 39
IF Filter Bandwidth Calibration............................................... 39
LNA/PA Matching...................................................................... 40
Image Rejection Calibration ..................................................... 41
Packet Structure and Coding.................................................... 43
Programming After Initial Power-Up ..................................... 43
Applications Circuit ................................................................... 46
Serial Interface ................................................................................ 47
Readback Format........................................................................ 47
Interfacing to a Microcontroller/DSP ..................................... 49
Register 0—N Register............................................................... 50
Register 1—VCO/Oscillator Register...................................... 51
Register 2—Transmit Modulation Register ............................ 52
Register 3—Transmit/Receive Clock Register........................ 53
Register 4—Demodulator Setup Register ............................... 54
Register 5—IF Filter Setup Register......................................... 55
Register 6—IF Fine Cal Setup Register ................................... 56
Register 7—Readback Setup Register...................................... 57
Register 8—Power-Down Test Register .................................. 58
Register 9—AGC Register......................................................... 59
Register 10—AFC Register ....................................................... 60
Register 11—Sync Word Detect Register................................ 61
Register 12—SWD/Threshold Setup Register........................ 61
Register 13—3FSK/4FSK Demod Register ............................. 62
Register 14—Test DAC Register............................................... 63
Register 15—Test Mode Register ............................................. 64
Outline Dimensions ....................................................................... 65
Ordering Guide .......................................................................... 65
Rev. B | Page 2 of 65







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