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ADF7241 Datasheet(PDF) 2 Page - Analog Devices |
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ADF7241 Datasheet(HTML) 2 Page - Analog Devices |
2 / 72 page ADF7241 Rev. 0 | Page 2 of 72 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 General Description ......................................................................... 3 Specifications..................................................................................... 5 General Specifications ................................................................. 5 RF Frequency Synthesizer Specifications.................................. 5 Transmitter Specifications........................................................... 6 Receiver Specifications ................................................................ 6 Auxiliary Specifications ............................................................... 8 Current Consumption Specifications ........................................ 9 Timing and Digital Specifications.............................................. 9 Timing Diagrams........................................................................ 11 Absolute Maximum Ratings.......................................................... 15 ESD Caution................................................................................ 15 Pin Configuration and Function Descriptions........................... 16 Typical Performance Characteristics ........................................... 18 Terminology .................................................................................... 22 Radio Controller ............................................................................. 23 Sleep Modes................................................................................. 25 RF Frequency Synthesizer ............................................................. 26 RF Frequency Synthesizer Calibration .................................... 26 RF Frequency Synthesizer Bandwidth..................................... 27 RF Channel Frequency Programming..................................... 27 Reference Crystal Oscillator ..................................................... 27 Transmitter ...................................................................................... 28 Transmit Operating Modes ....................................................... 28 IEEE 802.15.4 Automatic RX-To-TX Turnaround Mode..... 30 Power Amplifier.......................................................................... 30 Receiver............................................................................................ 33 Receive Operation ...................................................................... 33 Receiver Calibration................................................................... 33 Receive Timing and Control ....................................................... 35 Clear Channel Assessment (CCA) ........................................... 36 Link Quality Indication (LQI) .................................................. 36 Automatic TX-to-RX Turnaround Mode ............................... 37 IEEE 802.15.4 Frame Filtering, Automatic Acknowledge, and Automatic CSMA/CA................................................................ 37 Receiver Radio Blocks ............................................................... 39 SPORT Interface ............................................................................. 40 SPORT Mode .............................................................................. 40 Device Configuration .................................................................... 41 Configuration Values ................................................................. 41 RF Port Configurations/Antenna Diversity................................ 42 Auxillary Functions........................................................................ 43 Temperture Sensor ..................................................................... 43 Battery Monitor .......................................................................... 43 Wake-Up Controller (WUC).................................................... 43 Transmit Test Modes.................................................................. 44 Serial Peripheral interface (SPI) ................................................... 45 General Characteristics ............................................................. 45 Command Access....................................................................... 45 Status Word ................................................................................. 45 Memory Map .................................................................................. 47 BBRAM........................................................................................ 47 Modem Configuration RAM (MCR) ...................................... 47 Program ROM ............................................................................ 47 Program RAM ............................................................................ 47 Packet RAM ................................................................................ 47 Memory Access............................................................................... 49 Writing to the ADF7241............................................................ 50 Reading from the ADF7241...................................................... 50 Downloadable Firmware Modules............................................... 53 Interrupt Controller ....................................................................... 54 Configuration ............................................................................. 54 Description of Interrupt Sources ............................................. 55 Applications Circuits...................................................................... 56 Register Map ................................................................................... 60 Outline Dimensions ....................................................................... 71 Ordering Guide .......................................................................... 71 REVISION HISTORY 1/11—Revision 0: Initial Version |
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