STMicroelectronics simplifies portable GNSS receiver design

Claimed to simplify design and save real estate in global navigation satellite system (GNSS) receivers, the BPF8089-01SC6 RF is an integrated impedance-matching and protection IC from STMicroelectronics.

Integrating the impedance-matching and electrostatic discharge (ESD) protection circuitry, typically implemented using discrete components, results in a much smaller footprint, says STMicroelectronics.

The BPF8089-01SC6 provides a 50 Ohm matched interface between the receiver’s antenna and low noise amplifier (LNA), and is ready to use with ST’s STA8089 and STA8090 LNAs. The compact, integrated device typically replaces a matching network containing up to five capacitors, resistors, and inductors, as well as two discrete protection devices. Designers can also leverage PCB-track specifications provided in the device datasheet for optimal performance.

The ESD protection provided complies with IEC 61000-4-2 (C = 150pF, R = 330Ω) and exceeds level 4: 8kV for contact discharge and 15kV for air discharge. The device also withstands 2kV pulse voltage in accordance with MIL STD 883C (C = 100pF, R = 1.5 kOhm).

The BPF8089-01SC6 is suitable for use in portable satellite receivers for GPS, Galileo, GLONASS, BeiDou, and QZSS constellations, which may be used in a number of applications including consumer satellite navigation, radio base stations, drones, and tracking of assets or livestock.

The IC is part of ST’s ASIP (Application Specific Integrated Passives) product range. It is housed in a SOT23-6L package that is compatible with automatic optical inspection. It is in production now.

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