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STS1TXQTR

Low data rate, low power sub-1GHz transmitter

Operating Temp Min Celsius-40.0
Operating Temp Max Celsius85.0
Operating Voltage Min Volt1.8
Operating Voltage Max Volt3.6
ECCN US5A992.c
ECCN EU5A002.a.2
Packing TypeTape And Reel
RoHs compliantEcopack3
GradeIndustrial
Package NameVFQFPN 20 4x4x1.0 mm

The STS1TX is a very low-power RF transmitter intended for RF wireless applications in the sub-1 GHz band. It is designed to operate both in the license-free ISM and SRD frequency bands at 169, 315, 433, 868, and 915 MHz, but can also be programmed to operate at other frequencies in the 300-348,...
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Key features
  • Frequency bands: 150-174 MHz, 300-348 MHz, 387-470 MHz, 779-956 MHz
  • Modulation schemes: 2-FSK, GFSK, MSK, GMSK, OOK, and ASK
  • Air data rate from 1 to 500 kbps
  • Very low power consumption (21 mA TX at +11 dBm)
  • Programmable channel spacing (12.5 kHz min.)
  • Programmable output power up to +16 dBm
  • Fast startup and frequency synthesizer settling time (6 μs)
  • Integrated temperature sensor
  • Battery indicator and low battery detector
  • TX FIFO buffer (96 bytes each)
  • Configurability via SPI interface
  • AES 128-bit encryption co-processor
  • Fully integrated ultra low power RC oscillator
  • Wakeup on internal timer and on external event
  • Flexible packet length with dynamic payload length
  • Automatic CRC handling
  • FEC with interleaving
  • Whitening of data
  • Wireless M-BUS, EN 300 220, FCC CFR47 15 (15.205, 15.209, 15.231, 15.247, 15.249), and ARIB STD T-67, T93, T-108 compliant
  • QFN20 4x4 mm RoHS package
  • Operating temperature range from -40 °C to 85 °C
In stock
Quantity $ per unit Savings
1-9$2.980%
10-24$2.6910%
25-99$2.5415%
100-249$2.1727%
250-499$2.0332%
500$1.7840%
Contact sales
$2.98
$2.98
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius85.0
Operating Voltage Min Volt1.8
Operating Voltage Max Volt3.6
ECCN US5A992.c
ECCN EU5A002.a.2
Packing TypeTape And Reel
RoHs compliantEcopack3
GradeIndustrial
Package NameVFQFPN 20 4x4x1.0 mm

The STS1TX is a very low-power RF transmitter intended for RF wireless applications in the sub-1 GHz band. It is designed to operate both in the license-free ISM and SRD frequency bands at 169, 315, 433, 868, and 915 MHz, but can also be programmed to operate at other frequencies in the 300-348,...
Read More

Key features
  • Frequency bands: 150-174 MHz, 300-348 MHz, 387-470 MHz, 779-956 MHz
  • Modulation schemes: 2-FSK, GFSK, MSK, GMSK, OOK, and ASK
  • Air data rate from 1 to 500 kbps
  • Very low power consumption (21 mA TX at +11 dBm)
  • Programmable channel spacing (12.5 kHz min.)
  • Programmable output power up to +16 dBm
  • Fast startup and frequency synthesizer settling time (6 μs)
  • Integrated temperature sensor
  • Battery indicator and low battery detector
  • TX FIFO buffer (96 bytes each)
  • Configurability via SPI interface
  • AES 128-bit encryption co-processor
  • Fully integrated ultra low power RC oscillator
  • Wakeup on internal timer and on external event
  • Flexible packet length with dynamic payload length
  • Automatic CRC handling
  • FEC with interleaving
  • Whitening of data
  • Wireless M-BUS, EN 300 220, FCC CFR47 15 (15.205, 15.209, 15.231, 15.247, 15.249), and ARIB STD T-67, T93, T-108 compliant
  • QFN20 4x4 mm RoHS package
  • Operating temperature range from -40 °C to 85 °C