S2SPI-HA/UA/NA-A Module is designed based on S2-LP. S2-LP is a high performance ultra-low power RF transceiver, intended for RF wireless applications in the sub-1 GHz band. It is designed to operate in both the license-free ISM and SRD frequency bands at 433, 868 and 920 MHz, but can also be programmed to operate at other additional frequencies in the 430-470MHz, 860-940 MHz bands.

The S2-LP can be used in systems with channel spacing of 12.5/25 kHz enabling. The narrowband operations. The S2-LP shows an RF link budget higher than 140dB for long communication ranges and meets the regulatory requirements applicable in territories worldwide, including Europe, Japan, China and the USA.

• Frequency bands:- 430-470 MHz - 860-940 MHz
• Modulation schemes:- 2(G)FSK, 4(G)FSK - OOK, ASK
• Air data rate from 0.3 to 500 kbps
• Ultra-low power consumption:- 8 mA RX - 10 mA TX @ +10 dBm
• Excellent performance of receiver sensitivity: down to -130 dBm
• Excellent receiver selectivity and blocking
• Programmable RF output power up to +16 dBm
• Bit rate from 0.3 to 500 kbps
• Programmable RX digital filter
• Programmable channel spacing
• Fast startup and frequency synthesizer settling time
• Automatic frequency offset compensation, AGC and symbol timing recovery
• More than 140 dB RF link budget
• Battery indicator and low battery detector
• RX and TX FIFO buffers
• 4 wires SPI interface
• Automatic packet acknowledgment and retransmission
• Embedded timeout protocol engine
• Antenna diversity algorithm
• Fully integrated ultra-low power RC oscillator
• Wake-up driven by internal timer or external event
• Digital real time RSSI
• Flexible packet length with dynamic payload length
• Programmable preamble and SYNC word quality filtering and detection
• Embedded CSMA/CA engine based on listen-before-talk systems
• IEEE 802.15.4g hardware packet support with whitening, FEC, CRC and dual SYNC word detection
• Wireless M-BUS supported
• Enables operations in the SIGFOX™ networks
• Operating temperature range:-20 °C to +70 °C