STMicroelectronics

SPIRIT1

Low data rate, low power sub-1GHZ transceiver

Topologie: Other
Schaltfrequenz (min.): 1.00 kHz
Schaltfrequenz (max.): 800.00 kHz

Erstveröffentlichung am 27.05.2015, Version 8 vom

Beschreibung

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.

Merkmale

  • 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)
  • Link quality indication (LQI)
  • 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 85 °C

Artikel

  Artikel Nr. SPEC Produktserie Z @ 100 MHz
(Ω)
Zmax
(Ω)
TC Zmax IR 2
(mA)
RDC max.
(Ω)
Typ L
(µH)
IR
(mA)
Q fres
(MHz)
Muster
74279206 PDF WE-CBF SMT-Ferrit 30 55 1000 MHz 3000 0.025 High Current
74476402 PDF WE-GF SMT-Induktivität 1 2.2 320 30 138