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SPIRIT1QTR

Active

Low data rate, low power Sub 1GHz transceiver

Quantity $ per Unit Savings
1 - 9$3.470%
10 - 24$3.1310%
25 - 60$2.9515%
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$3.47
Parameter NameParameter Value
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 Compliance GradeEcopack3
GradeIndustrial
Package NameVFQFPN 20 4x4x1.0

The SPIRIT1 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 SPIRIT1 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 SPIRIT1 can perform cyclic redundancy checks on the data as well as FEC encoding/decoding on the packets. The SPIRIT1 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 SPIRIT1 supports an embedded CSMA/CA engine. An AES 128-bit encryption co-processor is available for secure data transfer. The SPIRIT1 fully supports antenna diversity with an integrated antenna switching control algorithm. The SPIRIT1 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.

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 (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
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