OL2381AHN/C0B,515 NXP

OL2381 Highly integrated single-chip sub 1 GHz RF transceiver Rev. 1 30 November 2011 Product data sheet 1. General description 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. 2. Features and benefits 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 filterOL2381 NXP Semiconductors Highly integrated single-chip sub 1 GHz RF transceiver 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 A 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 3. 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 4. Ordering information Table 1. Ordering information Type number Package Name Description Version OL2381AHN HVQFN32 plastic thermal enhanced very thin quad flat package no leads 32 SOT617-3 terminals body 5 5 0.85 mm OL2381 All information provided in this document is subject to legal disclaimers. NXP B.V. 2011. All rights reserved. Product data sheet Rev. 1 30 November 2011 2 of 152