Texas Instruments 3138 155 232931 User Manual
Cc2420
CC2420
SWRS041B Page 1 of 89
2.4 GHz IEEE 802.15.4 / ZigBee-ready RF Transceiver
Applications
• 2.4 GHz IEEE 802.15.4 systems
• ZigBee systems
• Home/building automation
• Industrial Control
• Wireless sensor networks
• PC peripherals
• Consumer Electronics
Product Description
The
CC2420 is a true single-chip 2.4 GHz
IEEE 802.15.4 compliant RF transceiver
designed for low power and low voltage
wireless applications.
CC2420 includes a
digital direct sequence spread spectrum
baseband modem providing a spreading
gain of 9 dB and an effective data rate of
250 kbps.
The
CC2420 is a low-cost, highly integrated
solution for robust wireless communication
in the 2.4 GHz unlicensed ISM band. It
complies with worldwide regulations
covered by ETSI EN 300 328 and EN 300
440 class 2 (Europe), FCC CFR47 Part 15
(US) and ARIB STD-T66 (Japan).
The
CC2420 provides extensive hardware
support for packet handling, data
buffering, burst transmissions, data
encryption, data authentication, clear
channel assessment, link quality indication
and packet timing information. These
features reduce the load on the host
controller and allow
CC2420 to interface
low-cost microcontrollers.
The configuration interface and transmit /
receive FIFOs of
CC2420 are accessed via
an SPI interface. In a typical application
CC2420 will be used together with a
microcontroller and a few external passive
components.
CC2420 is based on Chipcon’s SmartRF
®
-
03 technology in 0.18
µm CMOS.
Key Features
• True single-chip 2.4 GHz IEEE
802.15.4 compliant RF transceiver
with baseband modem and MAC
support
• DSSS baseband modem with 2
MChips/s and 250 kbps effective data
rate.
• Suitable for both RFD and FFD
operation
• Low current consumption (RX: 18.8
mA, TX: 17.4 mA)
• Low supply voltage (2.1 – 3.6 V) with
integrated voltage regulator
• Low supply voltage (1.6 – 2.0 V) with
external voltage regulator
• Programmable output power
• No external RF switch / filter needed
• I/Q low-IF receiver
• I/Q direct upconversion transmitter
• Very few external components
• 128(RX) + 128(TX) byte data buffering
• Digital RSSI / LQI support
• Hardware MAC encryption (AES-128)
• Battery
monitor
• QLP-48 package, 7x7 mm
• Complies with ETSI EN 300 328, EN
300 440 class 2, FCC CFR-47 part 15
and ARIB STD-T66
• Powerful and flexible development
tools available
Document Outline
- Abbreviations
- References
- Features
- Absolute Maximum Ratings
- Operating Conditions
- Electrical Specifications
- Pin Assignment
- Circuit Description
- Application Circuit
- IEEE 802.15.4 Modulation Format
- Configuration Overview
- Evaluation Software
- 4-wire Serial Configuration and Data Interface
- Microcontroller Interface and Pin Description
- Demodulator, Symbol Synchroniser and Data Decision
- Frame Format
- RF Data Buffering
- Address Recognition
- Acknowledge Frames
- Radio control state machine
- MAC Security Operations (Encryption and Authentication)
- Linear IF and AGC Settings
- RSSI / Energy Detection
- Link Quality Indication
- Clear Channel Assessment
- Frequency and Channel Programming
- VCO and PLL Self-Calibration
- Output Power Programming
- Voltage Regulator
- Battery Monitor
- Crystal Oscillator
- Input / Output Matching
- Transmitter Test Modes
- System Considerations and Guidelines
- PCB Layout Recommendations
- Antenna Considerations
- Configuration Registers
- Test Output Signals
- Package Description (QLP 48)
- Recommended layout for package (QLP 48)
- Ordering Information
- General Information
- Address Information
- TI Worldwide Technical Support