Product overview
Description
The 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, 512, 868 and 920 MHz, but can also be programmed to operate at other additional frequencies in the 413-479 MHz, 452-527 MHz, 826-958 MHz, 904-1055 MHz bands.
The S2-LP supports different modulation schemes: 2(G)FSK, 4(G)FSK, OOK and ASK. The air data rate is programmable from 0.1 to 500 kbps.
The S2-LP can be used in systems with channel spacing down to 1 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.
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All features
- Frequency bands:
- 413-479 MHz (S2-LPQTR)
- 452-527 MHz (S2-LPCBQTR)
- 826-958 MHz (S2-LPQTR)
- 904-1055 MHz (S2-LPCBQTR)
- Modulation schemes:
- 2(G)FSK, 4(G)FSK
- OOK, ASK
- Air data rate from 0.1 to 500 kbps
- Ultra-low power consumption:
- 7 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
- Programmable RX digital filter
- Programmable channel spacing
- Fast start-up and frequency synthesizer settling time
- Automatic frequency offset compensation, AGC and symbol timing recovery
- More than 145 dB RF link budget
- Battery indicator and low battery detector
- RX and TX 128 bytes FIFO buffers
- 4-wire SPI interface
- Automatic packet acknowledgment and retransmission
- Embedded timeout protocol engine
- Excellent receiver selectivity (> 80 dB @ 2 MHz)
- ST companion integrated balun/filter chips are available
- 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
- KNX-RF supported
- Enables operations in the SIGFOX™ and MONARCH networks
- Suitable to build systems targeting:
- Europe: ETSI EN 300 220, category 1.5 natively compliant, ETSI EN 303 131
- US: FCC part 15 and part 90
- Japan: ARIB STD T67, T108
- China: SRRC
- Operating temperature range: -40 °C to +105 °C
- Frequency bands:
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STMicroelectronics - S2-LP
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| S2-LPCBQTR | Active | QFN-24L | Industrial | Ecopack3 | |
| S2-LPQTR | Active | QFN-24L | Industrial | Ecopack3 |
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||||
| S2-LPCBQTR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| S2-LPQTR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
S2-LPCBQTR Active
S2-LPQTR Active
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors