CC1121 Datasheet, PDF (1/29 Pages) Texas Instruments – High Performance Low Power RF Transceiver

CC1121
High Performance Low Power RF Transceiver
Applications
• Ultra low power wireless systems with channel spacing
down to 50 kHz
• 170 / 315 / 433 / 868 / 915 / 950 MHz ISM/SRD band
systems
• Wireless Metering and Wireless Smart Grid (AMR and
AMI)
• IEEE 802.15.4g systems
• Home and building automation
• Wireless alarm and security systems
• Industrial monitoring and control
• Wireless healthcare applications
• Wireless sensor networks and Active RFID
Regulations
Suitable for systems targeting compliance with:
Europe
US
Japan
ETSI EN 300 220
ETSI EN 54-25
FCC CFR47 Part 15
FCC CFR47 Part 24
ARIB STD-T96
Key Features
• High performance single chip transceiver
o Excellent receiver sensitivity:
-120 dBm at 1.2 kbps
-110 dBm at 50 kbps
o Blocking performance: 86 dB at 10 MHz
o Adjacent channel selectivity: 60 dB
o Very low phase noise: -111 dBc/Hz at 10 kHz
offset
• Power Supply
o Wide supply voltage range (2.0 V – 3.6 V)
o Low current consumption:
- RX: 2 mA in RX Sniff Mode
- RX: 17 mA peak current in low power mode
- RX: 22 mA peak current in high
performance mode
- TX: 45 mA at +14 dBm
o Power down: 0.3 µA
• Programmable output power up to +16 dBm with
0.4 dB step size
• Automatic output power ramping
• Configurable data rates: 1.2 to 200 kbps
• Supported modulation formats: 2-FSK, 2- GFSK,
4-FSK, 4-GFSK, MSK, OOK
• WaveMatch: Advanced digital signal processing for
improved sync detect performance
• RoHS compliant 5x5mm QFN 32 package
Peripherals and Support Functions
• Enhanced Wake-On-Radio functionality for automatic
low-power receive polling
• Separate 128-byte RX and TX FIFOs
• Includes functions for antenna diversity support
• Support for re-transmissions
• Support for auto-acknowledge of received packets
• TCXO support and control, also in power modes
• Automatic Clear Channel Assessment (CCA) for listen-
before-talk (LBT) systems
• Built in coding gain support for increased range and
robustness
• Digital RSSI measurement
• Support for seamless integration with the CC1190 for
increased range giving up to 3 dB improvement in
sensitivity and up to +27 dBm output power
Description
The CC1121 is a fully integrated single-chip radio transceiver
designed for high performance at very low power and low
voltage operation in cost effective wireless systems. All
filters are integrated, removing the need for costly external
SAW and IF filters. The device is mainly intended for the
SRD (Short Range Device) frequency bands at 274-320
MHz, 410-480 MHz and 820-960 MHz.
The CC1121 provides extensive hardware support for packet
handling, data buffering, burst transmissions, clear
channel assessment, link quality indication and Wake-On-
Radio. The CC1121 main operating parameters can be
controlled via an SPI interface. In a typical system, the
CC1121 will be used together with a microcontroller and only
few external passive components.
PRODUCTION DATA information is current as of publication date. Products conform to
specifications per the terms of Texas Instruments standard warranty. Production processing does
not necessarily include testing of all parameters.
SWRS111B – REVISED APRIL 2012
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