NXP Semiconductors OL2385AHN/00100Y

Overview

OL2385AHN/00100Y from NXP Semiconductors is a fully integrated industrial UHF RF transceiver IC supporting 158–960 MHz carrier frequencies, featuring an embedded 16-bit RISC microcontroller, dual-path I/Q receiver with digital IF processing, and a programmable +14 dBm transmitter with 400 kbit/s 4FSK capability-designed for battery-powered smart metering and LPWAN systems.

For engineers reviewing the OL2385AHN/00100Y datasheet, OL2385AHN/00100Y pinout, OL2385AHN/00100Y application, or OL2385AHN/00100Y equivalent, key selection criteria include its HVQFN48 package with wettable flanks, -124 dBm FSK sensitivity at 10 kHz BW, 700 nA power-down current, and SPI/UART/LIN interface support for rapid firmware integration in sub-GHz industrial wireless designs.

Technical Context

The OL2385AHN/00100Y implements a fractional-N PLL-based local oscillator architecture enabling precise frequency synthesis across 158–960 MHz bands, with phase noise of -117 dBc/Hz at 100 kHz offset (434 MHz band) and ARIB-compliant spectral purity. Its digital IF processing path includes decimation filtering, DC notch, and real-time I/Q amplitude/phase mismatch compensation to achieve >60 dB calibrated image rejection.

Receiver operation leverages dual antenna inputs (RF_IN_A/RF_IN_B), programmable AGC with 18×2 dB RF and 15×2 dB mixer attenuation steps, and sigma-delta ADCs delivering 120 dB RSSI dynamic range. The transmitter integrates digitally controlled PA ramping, splatter-avoidance filters, and selectable 0 dBm / +14 dBm output modes-all managed autonomously via 10 DMA channels and hardware-accelerated CRC/bit manipulation coprocessors.

Key Specifications

Pinout & Package

HVQFN48 package (7 × 7 × 0.85 mm, 0.5 mm pitch, wettable flanks) with exposed die pad for thermal dissipation and ground integrity.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar RF transceiver applications.

Compared with Si4463-B1B-FMR and CC1312R1F3RGZR, the OL2385AHN/00100Y uniquely combines high-output UHF transmission (+14 dBm), deep-sleep efficiency (700 nA), and hardware-accelerated digital IF processing-making it optimal for cost-sensitive, battery-constrained industrial telemetry where deterministic low-latency RF control is required without external processors.

Availability

OL2385AHN/00100Y is available at Aetrix Electronics and suitable for smart metering, LPWAN sensor networks, and industrial wireless control requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for production programs.

Supply support for OL2385AHN/00100Y includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with core expertise in RF, microcontrollers, and edge AI processing.

The OL2385 product line delivers highly integrated, low-power UHF transceivers targeting industrial wireless applications demanding regulatory compliance, battery longevity, and firmware flexibility-enabling rapid development of certified sub-GHz communication systems.

FAQ

What is the primary function of the OL2385AHN/00100Y in an industrial wireless system?

The OL2385AHN/00100Y serves as a fully integrated UHF transceiver IC with embedded RISC microcontroller, enabling end-to-end wireless communication from physical layer (158–960 MHz TX/RX) through digital baseband processing (FSK/ASK demodulation, CRC, DMA) to application-layer firmware execution. Its design eliminates the need for external MCUs in many sensor and metering nodes, reducing system complexity and bill-of-materials cost while maintaining regulatory compliance across global ISM bands.

Does the OL2385AHN/00100Y support both FSK and ASK modulation schemes?

Yes, the OL2385AHN/00100Y natively supports both FSK and ASK/OOK modulation. It achieves FSK via fractional-N PLL modulation (up to 400 kbit/s 4FSK) and ASK through direct PA envelope control. The device includes dedicated demodulators, clock-data recovery, and bit processors for both schemes-validated in datasheet sections covering sensitivity (-123 dBm ASK @ 10 kHz BW, -124 dBm FSK @ 10 kHz BW) and spectral mask compliance per ETSI/FCC standards.

How does the OL2385AHN/00100Y achieve low power consumption in battery-operated applications?

The OL2385AHN/00100Y achieves ultra-low power operation through multiple hardware features: 700 nA power-down current, autonomous polling timers that wake the device without MCU intervention, RX/TX data buffers in RAM with independent DMA channels (reducing real-time CPU load), and configurable supply domains (VDD_PA, VDD_RF, VDD_DIG) that can be powered down selectively. Its 1.9–5.5 V operating range also supports direct lithium primary cell operation without external voltage regulation.

What package type and mounting features does the OL2385AHN/00100Y use?

The OL2385AHN/00100Y uses the HVQFN48 package (7 × 7 × 0.85 mm, 0.5 mm pitch) with wettable flanks and an exposed die pad. Wettable flanks enable automated optical inspection (AOI) of solder joints during reflow, improving manufacturing yield. The exposed pad provides enhanced thermal dissipation and low-inductance ground connection-critical for RF stability and EMI performance in high-density PCB layouts.

Can the OL2385AHN/00100Y operate without custom firmware development?

Yes-the OL2385AHN/00100Y supports Remote Control Protocol (RCP) over SPI or UART, allowing full RF configuration (frequency, power, data rate, modulation), transmission, and reception without writing or flashing custom firmware. This enables rapid evaluation and integration into host systems where the main processor handles protocol logic while the OL2385AHN/00100Y manages all RF physical layer operations.