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CC2520 Datasheet Preview

CC2520 Datasheet

RF TRANSCEIVER

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APPLICATIONS
IEEE 802.15.4 systems
ZigBee® systems
Industrial monitoring and control
Home and building automation
Automatic Meter Reading
Low-power wireless sensor networks
Set-top boxes and remote controls
Consumer electronics
KEY FEATURES
State-of-the-art selectivity/co-existence
Adjacent channel rejection: 49 dB
Alternate channel rejection: 54 dB
Excellent link budget (103dB)
400 m Line-of-sight range
Extended temp range (-40 to +125°C)
Wide supply range: 1.8 V – 3.8 V
Extensive IEEE 802.15.4 MAC hardware
support to offload the microcontroller
AES-128 security module
CC2420 interface compatibility mode
Low Power
RX (receiving frame, -50 dBm) 18.5 mA
TX 33.6 mA @ +5 dBm
TX 25.8 mA @ 0 dBm
<1µA in power down
General
Clock output for single crystal systems
RoHS compliant 5 x 5 mm QFN28 (RHD)
package
CC2520 DATASHEET
2.4 GHZ IEEE 802.15.4/ZIGBEE® RF TRANSCEIVER
SWRS068 – DECEMBER 2007
Radio
IEEE 802.15.4 compliant DSSS baseband
modem with 250 kbps data rate
Excellent receiver sensitivity (-98 dBm)
Programmable output power up to +5 dBm
RF frequency range 2394-2507 MHz
Suitable for systems targeting compliance
with worldwide radio frequency
regulations: ETSI EN 300 328 and EN
300 440 class 2 (Europe), FCC CFR47 Part
15 (US) and ARIB STD-T66 (Japan)
Microcontroller Support
Digital RSSI/LQI support
Automatic clear channel assessment for
CSMA/CA
Automatic CRC
768 bytes RAM for flexible buffering and
security processing
Fully supported MAC security
4 wire SPI
6 configurable IO pins
Interrupt generator
Frame filtering and processing engine
Random number generator
Development Tools
Reference design
IEEE 802.15.4 MAC software
ZigBee® stack software
Fully equipped development kit
Packet sniffer support in hardware
DESCRIPTION
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 125°C and low voltage operation.
In addition, the CC2520 provides extensive
hardware support for frame handling, data
buffering, burst transmissions, data encryption,
data authentication, clear channel assessment,
link quality indication and frame timing
information. These features reduce the load on
the host controller.
In a typical system, the CC2520 will be used
together with a microcontroller and a few
additional passive components.
QFN28 (RHD) PACKAGE
TOP VIEW
SO 1
SI 2
CSn 3
GPIO5 4
GPIO4 5
GPIO3 6
GPIO2 7
CC2520
21 NC
20 AVDD1
19 RF_N
18 NC
17 RF_P
16 AVDD2
15 NC
AGND
exposed die
attached pad
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
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CC2520 Datasheet Preview

CC2520 Datasheet

RF TRANSCEIVER

No Preview Available !

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
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Part Number CC2520
Description RF TRANSCEIVER
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Total Page 3 Pages
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