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IC-Hersteller STMicroelectronics

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STMicroelectronics SPIRIT1

Low data rate, low power sub-1GHZ transceiver

Details

Topologie Sonstige Topologie
Schaltfrequenz 1-800 kHz
IC-Revision 8

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.

Eigenschaften

  • 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

Typische Anwendungen

  • Industrial monitoring and control
  • Wireless fire and security alarm systems
  • AMR (automatic meter reading)
  • WSN (wireless sensors network)
  • Point-to-point wireless link
  • Home and building automation

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Downloads Produktserie L
(µH)
IR
(mA)
Q fres
(MHz)
Montageart Z @ 100 MHz
(Ω)
Zmax
(Ω)
Testbedingung Zmax IR 2
(mA)
RDC max.
(Ω)
Typ Muster
74476402
STE ALT EAG CAD LTS PSP SPE IGS CAD WE-GF SMT-Induktivität 2.2 320 30 138 SMT 1
74279206
STE ALT EAG CAD LTS PSP IGS CAD SPA WE-CBF SMT-Ferrit 3000 SMT 30 55 1000 MHz 3000 0.025 High Current
Artikel Nr. Daten­blatt
74476402
74279206
Muster
Artikel Nr. Daten­blatt Downloads Produktserie L
(µH)
IR
(mA)
Q fres
(MHz)
Montageart Z @ 100 MHz
(Ω)
Zmax
(Ω)
Testbedingung Zmax IR 2
(mA)
RDC max.
(Ω)
Typ Muster