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NXP Semiconductors OL2385AHN/001A1Y
- Part No.:
- OL2385AHN/001A1Y
- Manufacturer:
- NXP Semiconductors
- Category:
- RF Transceiver ICs
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
OL2385AHN/001A1Y.pdf
- Description:
- IC RF TXRX+MCU 48HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,827
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Product details
Overview
OL2385AHN/001A1Y from NXP Semiconductors is a fully integrated industrial UHF RF transceiver IC with embedded RISC microcontroller, supporting 158–960 MHz carrier frequencies, −124 dBm FSK sensitivity at 10 kHz BW, +14 dBm programmable TX output, and 400 kbit/s NRZ data rate. It enables battery-powered narrowband systems such as SigFox and smart metering via early digital IF processing and autonomous DMA-managed RX/TX buffers.
For engineers reviewing the OL2385AHN/001A1Y datasheet, OL2385AHN/001A1Y pinout, OL2385AHN/001A1Y application, or OL2385AHN/001A1Y equivalent, key selection considerations include its dual-antenna RX input support, integrated TRX switch, fractional-N PLL architecture for ARIB-compliant phase noise, and preflashed SigFox software stack in this variant.
Technical Context
The OL2385AHN/001A1Y implements a low-IF receiver architecture with I/Q down-mixing, sigma-delta ADCs, and digital baseband processing including channel filtering, ASK/FSK demodulation, and clock-data recovery. Its fractional-N PLL supports precise frequency synthesis across 158–960 MHz with phase noise of −117 dBc/Hz @ 100 kHz offset (434 MHz band).
The transmitter uses digitally controlled power ramping and splatter-avoidance filters to meet ETSI, FCC, and ARIB spectral masks. The embedded 16-bit RISC microcontroller executes customer firmware from 32 kByte EROM and manages autonomous polling via seven timers, while independent DMA channels handle RX/TX buffer transfers without MCU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| UHF Carrier Frequency | 158–960 MHz - supports global sub-GHz ISM bands including 434 MHz (EU), 868 MHz (EU), 915 MHz (US), and 925 MHz (ARIB). |
| TX Output Power | +14 dBm max - programmable in 0.25 dB steps; enables long-range narrowband links in battery-constrained industrial nodes. |
| RX Sensitivity | −124 dBm @ 10 kHz BW FSK - achieves high link budget for low-duty-cycle sensor networks and smart metering. |
| Data Rate | Up to 400 kbit/s NRZ - supports high-speed telemetry and remote control with FSK modulation. |
| Supply Voltage | 1.9–5.5 V - operates directly from single Li-ion (3.0–4.2 V), Li-SOCl₂ (3.6 V), or regulated 3.3/5 V rails without external LDOs. |
| Power Down Current | 700 nA - enables multi-year battery life in wake-up-on-RX or timer-polling applications. |
| Integrated Microcontroller | 16-bit extended RISC core with 32 kByte EROM and 7 kByte RAM - eliminates need for external host MCU in self-contained RF nodes. |
Pinout & Package
OL2385AHN/001A1Y is housed in a 7 × 7 × 0.85 mm HVQFN48 package with wettable flanks and exposed die pad for thermal dissipation and grounding. All GND_RF pins are internally connected to the die pad, which must be externally soldered to PCB ground.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RF_IN_A / RF_IN_B | Dual antenna inputs | Internally multiplexed RF receiver inputs enabling antenna diversity or multi-band matching without external switches. |
| TRXSWITCH_RX / TRXSWITCH_ANT / TRXSWITCH_TX | TRX switch control | Three dedicated pins drive an integrated RF switch for seamless RX/TX path routing and antenna selection. |
| TXOUT | PA output | High-power RF output requiring external choke to VREGPA; not intended for direct connection to antenna or filter. |
| VDD_PA / VDD_RF / VDD_ADC / VDD_DIG | Isolated supply domains | Separate 3 V supplies for PA, RF frontend, ADC, and digital logic ensure optimal noise isolation and dynamic range. |
| P10–P23 | Multi-function GPIOs | Support wake-up, USART0/1, timer I/O, ADC inputs, and RX/TX data paths - enable flexible peripheral integration. |
| RST_N | Active-low reset | Internal pull-up requires only 4.7 kΩ series resistor; ensures robust reset behavior in noisy industrial environments. |
Key Features
| Feature | Design Value |
|---|---|
| Early digital IF processing | Converts RF to digital domain before channel filtering/demodulation - enables software-defined radio flexibility and protocol agility. |
| Integrated TRX switch | Eliminates 2–3 external RF switches and matching components - reduces BOM count and layout complexity in compact modules. |
| I/Q mismatch compensation | On-chip calibration corrects amplitude/phase errors in analog front-end - improves image rejection beyond 60 dB without external tuning. |
| Autonomous DMA buffers | RX/TX data stored in RAM with independent DMA channels - relieves MCU from real-time packet handling and timing-critical transfers. |
| SigFox preflash (A1Y variant) | Firmware stack preloaded in EROM - accelerates time-to-market for certified SigFox end-devices without custom bootloader development. |
Applications
| Smart Metering (Sub-GHz) | Low-Power Wide-Area Networks |
|---|---|
Use Scenario: Gas/water/electricity meters transmitting consumption data hourly over 1–5 km using 868 MHz EU ISM band. IC Role / Device Role / Timing Role: Full-stack transceiver handling RF PHY, MAC-layer framing, and secure payload encryption via embedded MCU. Use Value: −124 dBm sensitivity and +14 dBm TX power achieve >110 dB link budget; 700 nA power-down current enables 15+ year battery life. |
Use Scenario: SigFox-compatible sensors deployed across agricultural fields or urban infrastructure reporting temperature, humidity, and occupancy. IC Role / Device Role / Timing Role: Pre-integrated SigFox stack (A1Y variant) manages uplink-only communication, CRC calculation, and adaptive retry timing. Use Value: Eliminates external MCU and RF front-end; 400 kbit/s capability supports faster firmware updates and diagnostic bursts within regulatory duty-cycle limits. |
| Industrial Monitoring & Control | Home & Building Security |
Use Scenario: Wireless vibration/temperature sensors on motors, pumps, and conveyors in factory settings with metal-rich EMI environments. IC Role / Device Role / Timing Role: Dual-antenna RX input and AGC with 18 RF-stage attenuation steps maintain reliable reception amid signal fading and interference. Use Value: 5 dB NF @ 434 MHz and >50 dB adjacent-channel rejection ensure robust operation near variable-frequency drives and PLCs. |
Use Scenario: Door/window contact sensors and PIR motion detectors sending encrypted alerts to central hubs via 434 MHz band. IC Role / Device Role / Timing Role: Embedded RISC core executes AES-128 encryption and low-power wake-up timers; TRX switch enables compact 2-layer PCB design. Use Value: 32 kByte EROM stores security keys and state machines; autonomous polling timer wakes device every 2 sec to check for interrupts - no host MCU required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar UHF transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si4463-B1B | No embedded MCU; requires external processor for protocol handling; narrower 142–1050 MHz range; lower TX power (+13 dBm). | Better suited for host-controlled systems where MCU resources are already available and protocol stack resides externally. | Choose when leveraging existing host firmware investment and needing higher receive selectivity (80 dB image rejection) over integrated processing. |
| CC1312R1F3RGZR | ARM Cortex-M4F MCU with 352 kB Flash; proprietary Sub-1 GHz PHY only; no SigFox preflash; lower RX sensitivity (−125 dBm @ 2.4 kbps). | Targeted at TI ecosystem users requiring BLE + Sub-1 GHz dual-mode operation and full SDK support. | Prefer when developing proprietary protocols with TI's SimpleLink platform and requiring Bluetooth coexistence features. |
Compared with Si4463-B1B and CC1312R1F3RGZR, OL2385AHN/001A1Y uniquely combines SigFox-certified firmware, dual-antenna RX switching, and ultra-low 700 nA power-down current - making it optimal for cost-sensitive, battery-powered industrial nodes requiring minimal external components and rapid certification.
Availability
OL2385AHN/001A1Y is available at Aetrix Electronics and suitable for smart metering, LPWAN sensor networks, industrial monitoring, and building security systems requiring stable component supply, long-lifecycle assurance, and prequalified RF performance.
Supply support for OL2385AHN/001A1Y 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 deep expertise in RF SoCs and wireless protocol stacks.
The OL2385 product line delivers highly integrated UHF transceivers targeting battery-operated industrial telemetry, designed to reduce system complexity and accelerate certification for SigFox, smart metering, and private narrowband networks.
FAQ
What distinguishes OL2385AHN/001A1Y from other OL2385 variants?
The OL2385AHN/001A1Y variant includes the SigFox software stack preflashed into its 32 kByte EROM, enabling immediate out-of-box operation for SigFox-certified end-devices without custom firmware development or bootloader programming. Unlike the generic OL2385AHN/00100, this version eliminates qualification overhead for regional SigFox network access and supports standardized uplink frame formatting, CRC generation, and retry timing per SigFox specification - all executed autonomously by the embedded RISC core in OL2385AHN/001A1Y.
Does OL2385AHN/001A1Y support both ASK and FSK modulation?
Yes, OL2385AHN/001A1Y supports both ASK/OOK and FSK modulation schemes. Its TX modulator controls the fractional-N PLL for precise FSK generation up to 400 kbit/s, while ASK is implemented via direct PA regulator modulation with digitally controlled power ramping. The receiver includes dedicated ASK/OOK and FSK demodulators in its digital baseband, with documented sensitivity of −123 dBm (ASK @ 10 kHz BW) and −124 dBm (FSK @ 10 kHz BW), confirming dual-modulation capability validated in the official datasheet for OL2385AHN/001A1Y.
Can OL2385AHN/001A1Y operate from a single lithium coin cell?
Yes, OL2385AHN/001A1Y supports direct operation from a single primary lithium battery (1.9–3.6 V) or rechargeable Li-ion cell (3.0–4.2 V), as confirmed in Section 9.2.1 of the datasheet. Its wide 1.9–5.5 V supply range, 700 nA power-down current, and internal LDO capable of generating 3 V from 5 V input allow flexible power architectures - including direct coin-cell use with appropriate decoupling capacitors on VDD_IO, VDD_DIG, and VDD_RF pins per Table 5 in the OL2385AHN/001A1Y documentation.
How does the integrated TRX switch in OL2385AHN/001A1Y simplify RF design?
The OL2385AHN/001A1Y integrates a fully featured TRX switch controlled by three dedicated pins (TRXSWITCH_RX, TRXSWITCH_ANT, TRXSWITCH_TX), eliminating the need for external RF switches, bias tees, or matching networks in most narrowband designs. This reduces bill-of-materials cost, PCB area, and insertion loss - particularly beneficial in compact modules where space and EMI are critical. The switch provides 50 Ω low-loss paths between TX/RX and antenna, with high isolation when open, as verified in the functional block diagram and pin description tables for OL2385AHN/001A1Y.
Is external crystal required for OL2385AHN/001A1Y operation?
Yes, OL2385AHN/001A1Y requires an external crystal connected to XTAL_P (Pin 16) and XTAL_N (Pin 14), with VDD_XO (Pin 13) and GND_XO (Pin 15) supplying dedicated 3 V power to the crystal oscillator circuit. The datasheet specifies support for fundamental-mode crystals in the 26–52 MHz range, and includes integrated temperature compensation using an on-chip sensor to maintain frequency stability across −40 °C to +85 °C - a requirement explicitly defined for OL2385AHN/001A1Y in Sections 1.1 and 9.3 of the product data sheet.
OL2385AHN/001A1Y Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 48-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- TxRx + MCU
- RF Family/Standard:
- -
- Protocol:
- -
- Modulation:
- ASK, FSK
- Frequency:
- -
- Data Rate (Max):
- -
- Power - Output:
- 14dBm
- Sensitivity:
- -124dBm
- Memory Size:
- -
- Serial Interfaces:
- SPI, UART
- GPIO:
- 12
- Voltage - Supply:
- 1.9V ~ 5.5V
- Current - Receiving:
- -
- Current - Transmitting:
- 29mA
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 48-HVQFN (7x7)
OL2385AHN/001A1Y FAQ
1.How can I place an order for OL2385AHN/001A1Y through Aetrix?
Please submit a Request for Quotation (RFQ) for OL2385AHN/001A1Y on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for OL2385AHN/001A1Y reliable?
The price and inventory of OL2385AHN/001A1Y are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OL2385AHN/001A1Y is usually 5 days.
3.What payment methods are accepted for OL2385AHN/001A1Y?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OL2385AHN/001A1Y transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OL2385AHN/001A1Y?
OL2385AHN/001A1Y orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OL2385AHN/001A1Y order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for OL2385AHN/001A1Y?
For technical support, including OL2385AHN/001A1Y datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OL2385AHN/001A1Y requirements.
6.How does Aetrix verify that OL2385AHN/001A1Y is sourced from the original manufacturer or authorized distributors?
All OL2385AHN/001A1Y products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that OL2385AHN/001A1Y meets industry standards.
7.What is the process for return or replacement of OL2385AHN/001A1Y?
All OL2385AHN/001A1Y units undergo pre-shipment inspection (PSI). If there is an issue with OL2385AHN/001A1Y, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The OL2385AHN/001A1Y part is unused and in its original packaging.
Return procedure for OL2385AHN/001A1Y:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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