OL2311AHN/C0B,515

RF Receiver ASK/FSK 2.7V 32Pin HVQFN EP T/R

Overview

A highly integrated single-chip receiver solution, the OL2311 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 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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## 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 architecture

* On-chip channel filtering with automatic calibration supported to provide stable cut-off frequencies and filter roll-off

* Multi channel operation by fully integrated Frac-N PLL with on-chip loop filter

* Automatic VCO sub band selection and calibration to reduce PLL loop bandwidth variation

* Digital RSSI with a configurable threshold

* Onboard Signal Signature Recognition Unit with Preamble Pattern Recognition

* Configurable polling timer with 2% absolute accuracy

* Level Sensitive Data slicer with self-adjusting threshold

* Low power Consumption RX 16 mA, 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

## 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

## Features