S2-LP

Ultra-low power, high performance, sub-1GHz transceiver

The 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 430-470 MHz, 860-940 MHz bands.

The S2-LP supports different modulation schemes: 2GFSK, 4GFSK, OOK and ASK. The air data rate is programmable from 0.3 to 500 kbps.

The S2-LP can be used in systems with channel spacing of 12.5/25 kHz enabling the narrow band operations.

The S2-LP shows an RF link budget higher than 140 dB for long communication ranges and meets the regulatory requirements applicable in territories worldwide, including Europe, Japan, China and the USA.

**Key Features**

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Frequency bands:

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430-470 MHz

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860-940 MHz

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Modulation schemes:

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2GFSK, 4GFSK

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OOK, ASK

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Air data rate from 0.3 to 500 kbps

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Ultra-low power consumption:

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7 mA RX

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10 mA TX @ +10 dBm

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Excellent performance of receiver sensitivity: down to -130 dBm

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Excellent receiver selectivity and blocking

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Programmable RF output power up to +16 dBm

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Bit rate from 0.3 to 500 kbps

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Programmable RX digital filter

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Programmable channel spacing

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Fast startup and frequency synthesizer settling time

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Automatic frequency offset compensation, AGC and symbol timing recovery

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More than 140 dB RF link budget

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Battery indicator and low battery detector

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RX and TX FIFO buffers

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4 wires SPI interface

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Automatic packet acknowledgment and retransmission

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Embedded timeout protocol engine

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Antenna diversity algorithm

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Fully integrated ultra-low power RC oscillator

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Wake-up driven by internal timer or external event

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Digital real time RSSI

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Flexible packet length with dynamic payload length

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Programmable preamble and SYNC word quality filtering and detection

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Embedded CSMA/CA engine based on listen-before-talk systems

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IEEE 802.15.4g hardware packet support with whitening, FEC, CRC and dual SYNC word detection

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Wireless M-BUS supported

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Enables operations in the SIGFOX™ networks

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Suitable to build systems targeting:

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Europe: ETSI EN 300 220, ETSI EN 303 131

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US: FCC part 15 and part 90

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Japan: ARIB STD T67, T108

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China: SRRC

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Operating temperature range:

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-40 °C to +85 °C