Features for the CC1121

• High-Performance, Single-Chip Transceiver
  • Excellent Receiver Sensitivity:
    • –120 dBm at 1.2 kbps
    • –110 dBm at 50 kbps
  • Blocking Performance: 86 dB at 10 MHz
  • Adjacent Channel Selectivity: 60 dB
  • Very Low Phase Noise: –111 dBc/Hz at
    10-kHz Offset
• Separate 128-Byte RX and TX FIFOs
• WaveMatch: Advanced Digital Signal Processing for Improved Sync Detect Performance
• Support for Seamless Integration With the CC1190 Device for Increased Range Giving up to 3-dB Improvement in Sensitivity and up to +27-dBm Output Power
• Power Supply
  • Wide Supply Voltage Range (2.0 V to 3.6 V)
  • 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
  • Power Down: 0.12 μA (0.5 μA With eWOR Timer Running)
• 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
• RoHS-Compliant 5-mm x 5-mm No-Lead QFN 32-Pin Package (RHB)
• Regulations – Suitable for Systems Targeting Compliance With
  • Europe: ETSI EN 300 220, ETSI EN 54-25
  • US: FCC CFR47 Part 15, FCC CFR47 Part 24
  • Japan: ARIB STD-T108
• Peripherals and Support Functions
  • Enhanced Wake-On-Radio Functionality for Automatic Low-Power Receive Polling
  • Includes Functions for Antenna Diversity Support
  • Support for Retransmissions
  • 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
  • Temperature Sensor

Description for the CC1121

The CC1121 device 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, thus removing the need for costly external SAW and IF filters. The device is mainly intended for the ISM (Industrial, Scientific, and Medical) and SRD (Short Range Device) frequency bands at 274–320 MHz, 410–480 MHz, and 820–960 MHz.

The CC1121 device provides extensive hardware support for packet handling, data buffering, burst transmissions, clear channel assessment, link quality indication, and Wake-On-Radio. The main operating parameters of the CC1121 device can be controlled through an SPI interface. In a typical system, the CC1121 device will be used with a microcontroller and only a few external passive components.