High Performance Low Power RF Transceiver - CC1121

CC1121 (ACTIVE)

High Performance Low Power RF Transceiver

Description

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.

shows pin names and locations for the CC1121 device.

Features

  • 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 – 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 5x5mm QFN 32 Package

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Featured tools and software

Parametrics Compare all products in Sub-1 GHz

 
Device Type
RX Current (Lowest) (mA)
Modulation Techniques
Sensitivity (Best) (dBm)
Adjacent Channel Selectivity (dB)
Minimum Channel Spacing (kHz)
RF Blocking (+/- 10MHz) (dB)
Approx. Price (US$)
CC1121 CC1120 CC1125 CC1175
Smart RF Transceiver     Smart RF Transceiver     Smart RF Transceiver     Smart RF Transmitter    
17     17     17      
2-FSK
2-GFSK
4-FSK
4-GFSK
MSK
ASK
OOK    
2-FSK
2-GFSK
4-FSK
4-GFSK
MSK
ASK
OOK    
2-FSK
2-GFSK
4-FSK
4-GFSK
MSK
ASK
OOK    
2-FSK
2-GFSK
4-FSK
4-GFSK
MSK
ASK
OOK    
-117     -123     -129      
61     65     67      
50     12.5     6.25     6.25    
86     90     104      
1.95 | 1ku     2.20 | 1ku     5.95 | 1ku     1.50 | 1ku    

Companion parts

Part # Name Product Family Comments
TPS62730   Step Down Converter with Bypass Mode for Ultra Low Power Wireless Applications   CONVERTER (INTEGRATED SWITCH) - STEP-DOWN (BUCK) CONVERTER    The TPS62730, step down converter with bypass mode, is optimized for low power wireless systems and saves 20-30% power drawn from the supply without compromising RF performance.
See Literature swra365b  Current Savings in CC254x Using the TPS62730  
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