Products > Integrated Circuits (ICs) > RF Integrated Circuits > SPIRIT1QTR

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RF Transceiver, 150Mhz to 956Mhz, 2FSK, ASK/GFSK, MSK, OOK, 500Kbps, 1.8V to 3.6V, QFN-20

  • Package/Case :
  • QFN20
  • Product Categories :
  • RF Transceiver
  • RoHs Status:
  • Rohs
  • In-stock:
  • 1988


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SPIRIT1QTR Product Details

The SPIRIT1QTR is a very low-power RF transceiver, 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 additional frequencies in the 300-348 MHz, 387-470 MHz, and 779-956 MHz bands. The air data rate is programmable from 1 to 500 kbps, and the SPIRIT1QTR can be used in systems with channel spacing of 12.5/25 kHz, complying with the EN 300 220 standard. It uses a very small number of discrete external components and integrates a configurable baseband modem, which supports data management, modulation, and demodulation. The data management handles the data in the proprietary fully programmable packet format also allows the M-Bus standard compliance format (all performance classes).
However, the SPIRIT1QTR can perform cyclic redundancy checks on the data as well as FEC encoding/decoding on the packets. The SPIRIT1QTR provides an optional automatic acknowledgement, retransmission, and timeout protocol engine in order to reduce overall system costs by handling all the high-speed link layer operations.
Moreover, the SPIRIT1QTR supports an embedded CSMA/CA engine. An AES 128-bit encryption co-processor is available for secure data transfer. The SPIRIT1QTR fully supports antenna diversity with an integrated antenna switching control algorithm. The SPIRIT1QTR supports different modulation schemes: 2-FSK, GFSK, OOK, ASK, and MSK.
Transmitted/received data bytes are buffered in two different three level FIFOs (TX FIFO and RX FIFO), accessible via the SPI interface for host processing.
• 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 (9 mA RX and 21 mA TX at  11 dBm)
• Programmable RX digital filter from 1 kHz to 800 kHz
• Programmable channel spacing (12.5 kHz min.)
• Excellent performance of receiver sensitivity (-118 dBm), selectivity, and blocking
• Programmable output power up to  16 dBm
• Fast startup and frequency synthesizer settling time (6 µs)
• Frequency offset compensation
• Integrated temperature sensor
• Battery indicator and low battery detector
• RX and TX FIFO buffer (96 bytes each)
• Configurability via SPI interface
• Automatic acknowledgment, retransmission, and timeout protocol engine
• AES 128-bit encryption co-processor
• Antenna diversity algorithm
• Fully integrated ultra low power RC oscillator
• Wake-up on internal timer and wake-up on external event
• Flexible packet length with dynamic payload length
• Sync word detection
• Address check
• Automatic CRC handling
• FEC with interleaving
• Digital RSSI output
• Programmable carrier sense (CS) indicator
• Automatic clear channel assessment (CCA) before transmitting (for listen-before-talk systems). Embedded CSMA/CA protocol
• Programmable preamble quality indicator (PQI)
• Whitening and de-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 105 °C
• AMR (automatic meter reading)
• Home and building automation
• WSN (wireless sensors network)
• Industrial monitoring and control
• Wireless fire and security alarm systems
• Point-to-point wireless link



  • Very Low Power Consumption (9mA RX and 21mA TX at +11dBm)
  • Programmable RX Digital Filter from 1 to 800kHz
  • Programmable Channel Spacing (12.5kHz Minimum)
  • Programmable Output Power up to +16dBm
  • Fast Startup and Frequency Synthesizer Settling Time (6µs)
  • Frequency Offset Compensation
  • Integrated Temperature Sensor
  • Battery Indicator and Low Battery Detector
  • RX and TX FIFO Buffer (96 Bytes Each)
  • Configurability via SPI Interface
  • Automatic Acknowledgment, Retransmission and Timeout Protocol Engine
  • AES 128-bit Encryption Co-processor
  • Antenna Diversity Algorithm
  • Fully Integrated Ultra Low-power RC Oscillator
  • Wake-up on Internal Timer and Wake-up on External Event
  • Flexible Packet Length with Dynamic Payload Length
  • Sync Word Detection
  • Address Check
  • Automatic CRC Handling
  • FEC with Interleaving

(Picture: Pinout)

SPIRIT1QTR Block Diagram
(Picture: Diagram)

Technical Parameters

  • Frequency Range
  • 150 MHz to 174 MHz, 300 MHz to 348 MHz, 387 MHz to 470 MHz, 779 MHz to 956 MHz
  • Maximum Data Rate
  • 500 Kbps
  • Modulation Format
  • Output Power
  • 11 dBm
  • Type
  • Wi-Fi
  • Operating Supply Voltage
  • 1.8 V to 3.6 V
  • Maximum Operating Temperature
  • + 85 C
  • Interface Type
  • SPI
  • Package / Case
  • QFN-20
  • Packaging
  • Reel
  • Maximum Operating Frequency
  • 10 MHz
  • Maximum Supply Current
  • 400 uA
  • Minimum Operating Temperature
  • - 40 C
  • Mounting Style
  • Number of Receivers
  • 1
  • Number of Transmitters
  • 1
  • Operating Temperature Range
  • - 40 C to + 85 C
  • Sensitivity
  • 118 dBm
  • Supply Current Receiving
  • 9 mA
  • Supply Current Transmitting
  • 21 mA
  • Supply Voltage Max
  • 3.6 V
  • Supply Voltage Min
  • 1.8 V

SPIRIT1QTR Related Products

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Estimated Delivery Time: Dec 02 - Dec 07 days (choose Expedited at checkout).

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We provide high quality products, thoughtful service and after sale guarantee

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  • Minimum order quantity starts from 1pcs.

    Minimum order quantity starts from 1pcs.

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  • 90 days quality guarantee for all products.

    90 days quality guarantee for all products.


  • Step1:Product

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All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

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1.We provide 90 days warranty.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


Q: How does Jotrin guarantee that SPIRIT1QTR is the original manufacturer or agent of ST?
We have a professional business development department to strictly test and verify the qualifications of ST original manufacturers and agents. All ST suppliers must pass the qualification review before they can publish their SPIRIT1QTR devices; we pay more attention to the channels and quality of SPIRIT1QTR products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of SPIRIT1QTR chips? Including ST original factory information, RF Transceiver application, SPIRIT1QTR pictures?
You can use Jotrin's intelligent search engine, or filter by Wireless Transceivers, MCUs and Modules ; Sub-1 GHz category, or find it through STMicroelectronics, Inc Information page.
Q: Are the ST's SPIRIT1QTR price and stock displayed on the platform accurate?
The ST's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for SPIRIT1QTR, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
Q: Can I place an order offline?
Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
Q: What forms of payment can I use in Jotrin?
TT Bank, Paypal, Credit Card, Western Union, and Escrow is all acceptable.
Q: How is the shipping arranged and track my package?
Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of SPIRIT1QTR?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the SPIRIT1QTR we delivered, we will accept the replacement or return of the SPIRIT1QTR only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of SPIRIT1QTR.
(3)The SPIRIT1QTR is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
Q: How to contact us and get support, such as SPIRIT1QTR datasheet pdf, SPIRIT1 pin diagram?
Need any After-Sales service, please feel free contact us:

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