Advantages of the latest generation LoRa Core LLCC68 chip

With the rapid development of IoT applications and markets, various IoT technologies continue to emerge and develop rapidly, and the demand for low-cost, high-performance IoT link technologies continues to increase, while traditional small wireless technologies Stagnation, and gradually unable to meet the needs of the market. In response to this demand, Semtech has developed a high-performance, low-cost, and more stable LoRa Core LLCC68 chip to help the development of the traditional small wireless link market.

What are the characteristics of the LoRa Core LLCC68 chip?

1. Longer communication distance:

Compared with the traditional FSK technology, the sensitivity of LoRa is closer to the theoretical limit of Shannon's theorem, and it breaks the implementation limit of the traditional FSK narrowband system.

2. Stronger anti-interference ability:

LoRa adopts spread spectrum technology, which can receive up to 20dB under noise (LLCC68 supports under 17.5dB), while FSK theoretically needs 8dB above noise to ensure the required PER; LoRa can tolerate stronger surges If the burst length is < ½ the symbol length of LoRa, the sensitivity degradation will be <3dB, and the interference duty cycle will be <50%.

3. Low power consumption throughout the process:

The sleep current of the LLCC68 device is less than 1uA, the transmit current during operation is 45mA@17dBm, and the receive current is only 5mA. Due to the use of Semtech's innovative LoRa CAD technology, the entire wake-up process only takes about 2 symbol times, of which about 1 symbol receives (receives current), and 1 symbol time is calculated, the current at this time is 50% of the receiving mode about. However, at the same rate, FSK generally requires 3 bytes or more of preamble for receiving synchronization, and the receiving window needs to be opened for more than 5ms; at the same rate, when performing periodic listening (WOR), LoRa's battery life is 3 times that of FSK. to 4 times.

4. Greater network capacity:

LoRa communication in the same frequency band is similar to code division multiplexing, and different spreading factors in the same frequency band will not interfere with each other. / Comprehensive innovation and optimization of network capacity determinants such as gateway density, signaling overhead, and number of retransmissions. It is based on these characteristics that LoRa can be deployed on demand.

What are the advantages of LoRa Core LLCC68 chip?

1. LLCC68 supports both LoRa mode and FSK mode

2. Compared with traditional small wireless products, LLCC68's FSK mode has higher sensitivity

3. The LoRa mode of LLCC68 supports more complete performance and solutions

LoRa Core LLCC68 can meet a variety of wireless transmission needs in the market, and its target application markets include:

Existing FSK Small Wireless Market

LoRa-based smart home applications

Industrial control scenarios that require anti-interference, long-distance and real-time performance The original LoRa does not require ultra-long-distance scenarios

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