Date: 19/09/2011

New sub-1 GHz RF transceivers from TI targeting low-power wireless apps

Texas Instruments Incorporated (TI) has introduced the sub-1 GHz RF chips for connecting low-power wireless applications in the security, Smart Grid, industrial, wireless healthcare, home and building automation, and other applications. Sub-1 GHz RF channels are said to offer robust and reliable wireless links that are resistant to disturbances from other wireless systems in a device's surroundings. The sub-1 GHz RF performance line family from TI consists of the CC1120 and CC1121 transceivers and CC1175 transmitter.

The sub-1 GHz RF performance line can be more than 30 times closer in proximity to other RF systems and potential connection "interferers" than competitive offerings, allowing streamlined coexistence between various connected devices in one environment, as per TI.

Key features of the product as per TI include:
CC1120 transceiver:
12.5 kHz channel spacing, down to 8 kHz Rx bandwidth
65-dB adjacent channel selectivity
FCC P90, ETSI EN 54-25, ARIB T96
CC1121 transceiver:
50 kHz channel spacing, down to 41 kHz Rx bandwidth
48 / 57 dB adjacent / alternate channel selectivity
Alternative solution with lower cost: CC110L value line transceiver

CC1175 transmitter:
High-performance transmit
6.25 kHz channel spacing
Up to +16dBm output power
Fully optimized for industrial, scientific and medical (ISM) frequency bands
169, 433, 868, 915 and 950 MHz
Range of more than 10 kilometers out-of-the-box with development kit
High output power (up to +16dBm) and excellent sensitivity (-123dBm @1.2kbps)
139-dB link budget
Lower field install cost with first pass installation success
Industry leading RF blocking and selectivity
65-dB adjacent channel rejection at 12.5 kHz offset and 90-dB blocking
Extended battery life with Advanced RF channel sniff mode. Quick startup and settling time
High spectrum efficiency
9.6kpbs in 12.5 KHz channels (FCC part 90, narrowbanding mandate)
Compatible with TI's CC1190 range extender, MSP 16-bit microcontroller platform and TPS62730 step down converter

"The sub-1 GHz RF performance line is a key enabler of long-range, low-power wireless connectivity that provides uninterrupted, reliable user experiences regardless of the other wireless devices in the environment," said Erling Simensen, product marketing manager, LPRF, TI. "Consider the fact that one household can contain more than ten wirelessly connected devices in the same space -- from family members' smartphones and health monitors to the home's smart meter, alarm system and more. Frequency is a limited resource, and these devices must communicate on the same bands while filtering out other RF traffic. Our sub-1 GHz RF performance line achieves this, and maximizes RF robustness for the best user experience."

The performance line complements TI's sub-1 GHz RF value line family, announced in July 2011, which offers low-cost connectivity solutions for sub-1 GHz RF applications such as remote controls, toys and security systems.

Available: Now
Package: ROHS-compliant, 5 mm x 5 mm QFN-32