CC2520 DATASHEET 2.4 GHZ IEEE 802.15.4/ZIGBEE RF TRANSCEIVER SWRS068 DECEMBER 2007 Radio APPLICATIONS IEEE 802.15.4 compliant DSSS baseband IEEE 802.15.4 systems modem with 250 kbps data rate ZigBee systems Excellent receiver sensitivity (-98 dBm) Industrial monitoring and control Programmable output power up to +5 dBm Home and building automation RF frequency range 2394-2507 MHz Automatic Meter Reading Suitable for systems targeting compliance Low-power wireless sensor networks with worldwide radio frequency Set-top boxes and remote controls regulations: ETSI EN 300 328 and EN Consumer electronics 300 440 class 2 (Europe), FCC CFR47 Part 15 (US) and ARIB STD-T66 (Japan) KEY FEATURES State-of-the-art selectivity/co-existence Microcontroller Support Adjacent channel rejection: 49 dB Digital RSSI/LQI support Alternate channel rejection: 54 dB Automatic clear channel assessment for Excellent link budget (103dB) CSMA/CA 400 m Line-of-sight range Automatic CRC Extended temp range (-40 to +125C) 768 bytes RAM for flexible buffering and Wide supply range: 1.8 V 3.8 V security processing Extensive IEEE 802.15.4 MAC hardware Fully supported MAC security support to offload the microcontroller 4 wire SPI AES-128 security module 6 configurable IO pins CC2420 interface compatibility mode Interrupt generator Frame filtering and processing engine Low Power Random number generator RX (receiving frame, -50 dBm) 18.5 mA TX 33.6 mA +5 dBm Development Tools TX 25.8 mA 0 dBm Reference design <1 A in power down IEEE 802.15.4 MAC software ZigBee stack software General Fully equipped development kit Clock output for single crystal systems Packet sniffer support in hardware RoHS compliant 5 x 5 mm QFN28 (RHD) package DESCRIPTION QFN28 (RHD) PACKAGE TOP VIEW The CC2520 is TI s second generation ZigBee / IEEE 802.15.4 RF transceiver for the 2.4 GHz unlicensed ISM band. This chip enables industrial grade applications by offering state-of-the-art selectivity/co-existence, excellent link budget, operation up to 125C and low voltage operation. In addition, the CC2520 provides extensive SO 1 21 NC hardware support for frame handling, data SI 2 20 AVDD1 buffering, burst transmissions, data encryption, CSn 3 19 RF N data authentication, clear channel assessment, GPIO5 4 18 NC CC2520 link quality indication and frame timing GPIO4 5 17 RF P information. These features reduce the load on GPIO3 6 16 AVDD2 the host controller. GPIO2 7 15 NC In a typical system, the CC2520 will be used AGND together with a microcontroller and a few exposed die attached pad additional passive components. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers threto appear at the end of this datasheet. ZigBee is a registered trademark owned by ZigBee Alliance, Inc. Copyright 2007, Texas Instruments Incorporated 1 WWW.TI.COM DVDD 8 28 SCLK GPIO1 9 27 DCOUPL GPIO0 10 26 VREG EN AVDD5 11 25 RESETn XOSC32M Q2 12 24 AVDD GUARD XOSC32M Q1 13 23 RBIAS AVDD3 14 22 AVDD4 CC2520 DATASHEET 2.4 GHZ IEEE 802.15.4/ZIGBEE RF TRANSCEIVER SWRS068 DECEMBER 2007 TABLE OF CONTENTS 1 Abbreviations ...............................................................................................................................5 2 References...................................................................................................................................7 3 Features.......................................................................................................................................8 4 Absolute Maximum Ratings .......................................................................................................10 5 Electrical Characteristics............................................................................................................11 5.1 Recommended Operating Conditions ............................................................................11 5.2 DC Characteristics .........................................................................................................11 5.3 Wake-Up and Timing .....................................................................................................11 5.4 Current Consumptions ...................................................................................................11 5.5 Receive Parameters.......................................................................................................12 5.6 Frequency Synthesizer Parameters...............................................................................12 5.6.1 Transmit Parameters..................................................................................................12 5.7 RSSI/CCA Parameters...................................................................................................13 5.8 FREQEST Parameters...................................................................................................13 5.9 Typical Performance Curves..........................................................................................14 5.10 Low-Current Mode RX....................................................................................................19 5.10.1 Low-Current RX Mode Parameters ............................................................................19 5.11 Optional Temperature Compensation of TX...................................................................20 5.11.1 Using the Temperature Sensor ..................................................................................21 6 Crystal Specific Parameters.......................................................................................................22 6.1 Crystal Requirements.....................................................................................................22 6.2 On-chip Crystal Frequency Tuning.................................................................................22 7 Pinout.........................................................................................................................................23 8 Functional Introduction...............................................................................................................25 8.1 Integrated 2.4 GHz IEEE 802.15.4 Compliant Radio .....................................................25 8.2 Comparison to CC2420..................................................................................................25 8.3 Block Diagram................................................................................................................26 9 Application Circuit ......................................................................................................................29 9.1 Input / Output Matching..................................................................................................29 9.2 Bias Resistor ..................................................................................................................30 9.3 Crystal ............................................................................................................................30 9.4 Digital Voltage Regulator................................................................................................30 9.5 Power Supply Decoupling and Filtering .........................................................................30 9.6 Board Layout Guidelines................................................................................................30 9.7 Antenna Considerations.................................................................................................31 9.8 Choosing the Most Suitable Interconnection with a Microcontroller...............................31 9.9 Interfacing CC2520 and MSP430F2618 ........................................................................31 10 Serial Peripheral Interface (SPI) ................................................................................................33 10.1 CSn ................................................................................................................................33 10.2 SCLK..............................................................................................................................33 10.3 SI....................................................................................................................................33 10.4 SO ..................................................................................................................................34 10.5 SPI Timing Requirements ..............................................................................................34 11 GPIO ..........................................................................................................................................35 11.1 Reset Configuration of GPIO Pins..................................................................................35 11.2 GPIO as Input ................................................................................................................35 11.3 GPIO as Output..............................................................................................................36 11.4 Switching Direction on GPIO..........................................................................................36 11.5 GPIO Configuration........................................................................................................36 12 Power Modes .............................................................................................................................40 12.1 Switching Between Power Modes..................................................................................40 12.2 Power Up Sequence Using RESETn (recommended)...................................................41 2 WWW.TI.COM