Highly Integrated Single-Chip Sub 1 GHz RF Transceiver | NXP Semiconductors

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Highly Integrated Single-Chip Sub 1 GHz RF Transceiver

OL2381AHN Active

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A highly integrated single-chip transceiver solution, the OL2381 is ideally suited to telemetry applications operating in the ISM/SRD bands. The small form factor, low power consumption and wide supply voltage range make this device suitable for use in battery powered, handheld devices and their counter parts.

The device utilizes a fully integrated, programmable fractional-N PLL (including loop filter) to control the Local Oscillator (LO), thus supporting multi-channel operation and frequency hopping schemes. This feature also allows programmable frequency steps for crystal (XTAL) drift compensation.

The device can employ ASK, FSK or GFSK type modulation. The ASK modulation characteristics are fully programmable by varying the power amplifier output power in accordance with the TX data. The FSK modulation utilizes the fractional-N PLL capability to precisely modulate the LO frequency with the TX data (in loop modulation). Relaxed narrow band applications can utilize an on-chip GFSK type modulation to improve the spectral occupancy.

The device is based on a low IF direct conversion receiver architecture, with on-chip IF filtering and programmable channel bandwidth. After filtering and amplification the quadrature signals are digitized, demodulated and processed in the digital domain.

Baseband processing of the received signal comprises a demodulator, a data-slicer and clock recovery followed by a Manchester decoder. Automated signal signature recognition units are available to allow simple, fast and reliable data reception.

The device is controlled via a three-wire serial interface (SPI) with data input and output, data clock and interface enable. The interface can be configured to a full SPI interface with separate data and clock pins. Additional pins are available to access internal signals in real-time.

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Product Details

Features

  • Highly integrated solution for the 315/434/868/915 MHz band
  • Very few external components required
  • Complies with ETSI EN300-220/FCC part 15 standards
  • Near zero-IF RX architecture
  • On-chip channel filtering with automatic calibration supported to provide stable cut-off frequencies and filter roll-off
  • Multi-channel TX and RX operation by fully integrated fractional-N PLL with on-chip loop filter
  • Automatic VCO sub-band selection and calibration to reduce PLL loop bandwidth variation
  • Programmable ASK/FSK modulation with Manchester codec
  • Programmable transmitter output power (-20 dBm to +10 dBm), stabilized with onboard PA regulator
  • Digital RSSI with a configurable threshold
  • Onboard Signal Signature Recognition Unit (SSRU) with Preamble Pattern Recognition (PPR)
  • Configurable RX polling timer with 2 % absolute accuracy
  • Level Sensitive Data (LSD) slicer with self-adjusting threshold
  • Low power consumption (RX 16 mA, TX 13 mA at 6 dBm), with ultra Low 0.5 μA standby current and configurable polling timer
  • Single lithium cell operation (2.1 V). Operation up to 3.6 V fully supported
  • 32-Pin HVQFN32 Pb-free package

Target Applications

  • Smart metering (wireless M-bus)
  • Home and building security and automation (KNX-RF)
  • Remote control devices
  • After-market Remote Keyless Entry (RKE)
  • Wireless medical applications
  • Wireless sensor network

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OL2381AHN
Data Sheet

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HVQFN32

32

1K @ US$2.44
N true 0 PSPOL2381AHNen 6 Application Note Application Note t789 3 Data Sheet Data Sheet t520 1 Package Information Package Information t790 1 User Guide User Guide t792 1 en_US en_US en Data Sheet Data Sheet 1 1 1.0 English 1442058938753732431620 PSP 1.8 MB None None documents None 1442058938753732431620 /docs/en/data-sheet/OL2381.pdf 1785000 /docs/en/data-sheet/OL2381.pdf OL2381 documents N 2015-09-12 Highly Integrated Single Chip Sub 1-GHz RF Transceiver /docs/en/data-sheet/OL2381.pdf /docs/en/data-sheet/OL2381.pdf Data Sheet N 980000996212993340 2022-12-07 pdf en Nov 30, 2011 980000996212993340 Data Sheet Y N Highly Integrated Single Chip Sub 1-GHz RF Transceiver Application Note Application Note 3 2 1.0 English 1442088470773716265018 PSP 4.1 MB None None documents None 1442088470773716265018 /docs/en/application-note/AN11039.pdf 4133000 /docs/en/application-note/AN11039.pdf AN11039 documents N 2015-09-12 General Application Note for OL2381 /docs/en/application-note/AN11039.pdf /docs/en/application-note/AN11039.pdf Application Note N 645036621402383989 2022-12-07 pdf en Aug 22, 2011 645036621402383989 Application Note Y N General Application Note for OL2381 3 1.0 English 1442087331741710449108 PSP 1.7 MB None None documents None 1442087331741710449108 /docs/en/application-note/AN10996.pdf 1675000 /docs/en/application-note/AN10996.pdf AN10996 documents N 2015-09-12 OL2381 Quick set-up /docs/en/application-note/AN10996.pdf /docs/en/application-note/AN10996.pdf Application Note N 645036621402383989 2022-12-07 pdf en Jul 5, 2011 645036621402383989 Application Note Y N OL2381 Quick set-up 4 2.0 English 1442088479203722421436 PSP 3.0 MB None None documents None 1442088479203722421436 /docs/en/application-note/AN11017.pdf 2978000 /docs/en/application-note/AN11017.pdf AN11017 documents N 2015-09-12 Transceiver OL2381 using wireless M-BUS /docs/en/application-note/AN11017.pdf /docs/en/application-note/AN11017.pdf Application Note N 645036621402383989 2022-12-07 pdf en May 10, 2011 645036621402383989 Application Note Y N Transceiver OL2381 using wireless M-BUS User Guide User Guide 1 5 1.0 English 1442125673249718051969 PSP 4.4 MB None None documents None 1442125673249718051969 /docs/en/user-guide/UM10472.pdf 4354000 /docs/en/user-guide/UM10472.pdf UM10472 documents N 2015-09-12 User Manual OL2381 Demo Kit /docs/en/user-guide/UM10472.pdf /docs/en/user-guide/UM10472.pdf User Guide N 132339537837198660 2022-12-07 pdf en Dec 14, 2011 132339537837198660 User Guide Y N User Manual OL2381 Demo Kit Package Information Package Information 1 6 1.1 English 1455079158440714622017 PSP 161.1 KB None None documents None 1455079158440714622017 /docs/en/package-information/SOT617-3.pdf 161083 /docs/en/package-information/SOT617-3.pdf SOT617-3 documents N N 2016-06-08 plastic thermal enhanced very thin quad flat package; no leads; 32 terminals; body 5 x 5 x 0.85 mm /docs/en/package-information/SOT617-3.pdf /docs/en/package-information/SOT617-3.pdf Package Information N 302435339416912908 2025-02-07 pdf N en Jun 8, 2016 302435339416912908 Package Information Y N plastic thermal enhanced very thin quad flat package; no leads; 32 terminals; body 5 x 5 x 0.85 mm false 0 OL2381AHN downloads en true 1 Y PSP Application Note 3 /docs/en/application-note/AN11039.pdf 2015-09-12 1442088470773716265018 PSP 2 Aug 22, 2011 Application Note None /docs/en/application-note/AN11039.pdf English documents 4133000 None 645036621402383989 2022-12-07 /docs/en/application-note/AN11039.pdf General Application Note for OL2381 /docs/en/application-note/AN11039.pdf documents 645036621402383989 Application Note N en None Y pdf 1.0 N General Application Note for OL2381 4.1 MB AN11039 N 1442088470773716265018 /docs/en/application-note/AN10996.pdf 2015-09-12 1442087331741710449108 PSP 3 Jul 5, 2011 Application Note None /docs/en/application-note/AN10996.pdf English documents 1675000 None 645036621402383989 2022-12-07 /docs/en/application-note/AN10996.pdf OL2381 Quick set-up /docs/en/application-note/AN10996.pdf documents 645036621402383989 Application Note N en None Y pdf 1.0 N OL2381 Quick set-up 1.7 MB AN10996 N 1442087331741710449108 /docs/en/application-note/AN11017.pdf 2015-09-12 1442088479203722421436 PSP 4 May 10, 2011 Application Note None /docs/en/application-note/AN11017.pdf English documents 2978000 None 645036621402383989 2022-12-07 /docs/en/application-note/AN11017.pdf Transceiver OL2381 using wireless M-BUS /docs/en/application-note/AN11017.pdf documents 645036621402383989 Application Note N en None Y pdf 2.0 N Transceiver OL2381 using wireless M-BUS 3.0 MB AN11017 N 1442088479203722421436 Data Sheet 1 /docs/en/data-sheet/OL2381.pdf 2015-09-12 1442058938753732431620 PSP 1 Nov 30, 2011 Data Sheet None /docs/en/data-sheet/OL2381.pdf English documents 1785000 None 980000996212993340 2022-12-07 /docs/en/data-sheet/OL2381.pdf Highly Integrated Single Chip Sub 1-GHz RF Transceiver /docs/en/data-sheet/OL2381.pdf documents 980000996212993340 Data Sheet N en None Y pdf 1.0 N Highly Integrated Single Chip Sub 1-GHz RF Transceiver 1.8 MB OL2381 N 1442058938753732431620 Package Information 1 /docs/en/package-information/SOT617-3.pdf 2016-06-08 1455079158440714622017 PSP 6 Jun 8, 2016 Package Information None /docs/en/package-information/SOT617-3.pdf English documents 161083 None 302435339416912908 2025-02-07 N /docs/en/package-information/SOT617-3.pdf plastic thermal enhanced very thin quad flat package; no leads; 32 terminals; body 5 x 5 x 0.85 mm /docs/en/package-information/SOT617-3.pdf documents 302435339416912908 Package Information N en None Y pdf 1.1 N N plastic thermal enhanced very thin quad flat package; no leads; 32 terminals; body 5 x 5 x 0.85 mm 161.1 KB SOT617-3 N 1455079158440714622017 User Guide 1 /docs/en/user-guide/UM10472.pdf 2015-09-12 1442125673249718051969 PSP 5 Dec 14, 2011 User Guide None /docs/en/user-guide/UM10472.pdf English documents 4354000 None 132339537837198660 2022-12-07 /docs/en/user-guide/UM10472.pdf User Manual OL2381 Demo Kit /docs/en/user-guide/UM10472.pdf documents 132339537837198660 User Guide N en None Y pdf 1.0 N User Manual OL2381 Demo Kit 4.4 MB UM10472 N 1442125673249718051969 true Y Products

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