S2-LPTX

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Ultra-Low power, High performance Sub-1GHz transmitter

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Product overview

Description

The S2-LPTX is a high performance ultra-low power RF transmitter, 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 413-479 MHz, 826-958 MH.

The S2-LPTX 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-LPTX meets the regulatory requirements applicable in territories worldwide, including Europe, Japan, China and the USA.

  • All features

    • Frequency bands:
      • 413-479 MHz
      • 826-958 MHz
    • Modulation schemes:
      • 2(G)FSK, 4(G)FSK
      • OOK, ASK
    • Air data rate from 0.1 to 500 kbps
    • Ultra-low power consumption:
      • 10 mA TX @ +10 dBm
    • Programmable RF output power up to +16 dBm
    • Programmable channel spacing
    • Fast start-up and frequency synthesizer settling time
    • Battery indicator and low battery detector
    • TX 128 bytes FIFO buffers
    • 4-wire SPI interface
    • ST companion integrated filter chips are available
    • Fully integrated ultra-low power RC oscillator
    • Wake-up driven by internal timer or external event
    • Flexible packet length with dynamic payload length
    • IEEE 802.15.4g hardware packet support with whitening, FEC, CRC
    • Wireless M-BUS supported
    • Enables operations in the SIGFOX™ network
    • Suitable to build systems targeting:
      • Europe: ETSI EN 300 220, 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

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
S2-LPTXQTR
Active
QFN-24L Industrial Ecopack3

S2-LPTXQTR

Package:

QFN-24L

Material Declaration**:

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Marketing Status

Active

Package

QFN-24L

Grade

Industrial

RoHS Compliance Grade

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.

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(*) 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