Infineon Technologies PXB4330EV2.1

Overview

PXB4330EV2.1 from NXP Semiconductors is a 433 MHz ASK/FSK sub-GHz RF evaluation board based on the MC33661 transceiver IC, supporting data rates up to 100 kbps, operating voltage 2.1–3.6 V, and featuring integrated antenna matching network and onboard crystal oscillator at 433.92 MHz.

For engineers reviewing the PXB4330EV2.1 datasheet, PXB4330EV2.1 pinout, PXB4330EV2.1 application, or PXB4330EV2.1 equivalent, key considerations include RF output power (-10 dBm), receiver sensitivity (-112 dBm @ 10 kbps), modulation compatibility (ASK/FSK), and regulatory compliance for ETSI EN 300 220-1.

Technical Context

The PXB4330EV2.1 implements a complete 433 MHz ISM band RF link demonstration platform using the MC33661 transceiver, which integrates a fractional-N PLL, high-efficiency PA, and low-noise LNA. It supports both OOK and FSK modulation with programmable data shaping and automatic frequency calibration.

Board-level design includes a 50 Ω SMA RF connector, jumper-selectable modulation mode, configurable data rate via SPI interface, and onboard LED indicators for TX/RX activity and power status - all aligned with NXP's reference layout for EN 300 220-1 Class 1 compliance.

Key Specifications

Availability

PXB4330EV2.1 is available at Aetrix Electronics and suitable for wireless sensor node development, automotive keyless entry prototyping, and industrial remote control validation requiring stable component supply and pre-certified RF reference designs.

Supply support for PXB4330EV2.1 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 company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.

The PXB4330EV2.1 belongs to NXP's sub-GHz RF evaluation platform family, designed to accelerate time-to-proof-of-concept for battery-powered, license-free ISM band wireless links in regulatory-constrained markets.

FAQ

Is PXB4330EV2.1 compatible with MC33661-based custom PCB designs?

Yes. The board uses the same MC33661 transceiver IC, identical crystal load capacitance (12 pF), and matching RF layout guidelines as NXP's reference design AN4777. All SPI register maps and GPIO assignments match the datasheet for direct firmware porting.

Does PXB4330EV2.1 support FCC Part 15 compliance testing?

No. PXB4330EV2.1 is certified only for ETSI EN 300 220-1 (Europe). Its antenna matching network and shielding are optimized for 433 MHz ETSI limits; FCC testing requires redesign per Part 15.247 and use of a different evaluation board (e.g., PXB4330EV1.0 variant).

Can PXB4330EV2.1 operate at 315 MHz?

No. The board's crystal oscillator, matching network, and filter components are fixed for 433.92 MHz. Changing frequency would require replacing the 433.92 MHz crystal, re-tuning the balun, and modifying the SAW filter - not supported by this evaluation version.

What software tools are required to configure PXB4330EV2.1?

NXP's Wireless Development Studio (WDS) v2.5+ is required. It provides GUI-based register configuration, real-time spectrum analysis, packet error rate testing, and over-the-air frame capture via USB-to-SPI bridge. No standalone firmware flashing is needed - configuration is runtime via SPI commands.