STA8090WG26

RF Receivers Overview

The STA8090WG26 is a single-die standalone GNSS positioning receiver from the Teseo III family, integrating an ARM946 MCU running at 196 MHz with embedded RF front-end and low-noise amplifier. It supports GPS, Galileo, GLONASS, BeiDou, and QZSS systems via 48 tracking channels and 2 fast acquisition channels. Key electrical parameters include indoor sensitivity of -162 dBm in tracking mode, hot start TTFF under 1 second, and cold start TTFF of 30 seconds. The device operates on main voltage (VINL) from 1.6 V to 4.3 V, backup voltage (VINB) from 1.6 V to 4.3 V, digital voltage (VDD) from 1.0 V to 1.32 V, RF core voltage (VCC) at 1.2 V ± 10%, and IO ring voltage (VddIO) at 1.8 V ± 5% or 3.3 V ± 10%. It features 256 Kbyte SRAM, external SQI Flash interface, three UARTs, I2C, SSP, USB 2.0, CAN, RTC, and timers.

RF Receivers Feature Summary

• Integrates high-performance ARM946 microprocessor with enhanced peripherals and backup logic for standalone operation.
• Embeds complete GNSS firmware performing all operations including tracking, acquisition, navigation, and data output.
• Supports multiple satellite navigation systems with high sensitivity and fast time-to-first-fix capabilities.
• Includes comprehensive I/O interfaces such as UART, I2C, SPI, USB, and CAN for versatile connectivity.

RF Receivers Applications

• Hand-held computers
• Cameras
• Data loggers
• Sports accessories

RF Receivers Procurement Notes

Verify component authenticity through authorized STMicroelectronics distributors or official manufacturer channels. Confirm package type matches WLCSP77 specifications and check lifecycle status, as this model may be obsolete. Ensure environmental compliance documentation aligns with project requirements. Validate pinout compatibility if replacing existing designs. Request full datasheet and application notes for integration support.

RF Receivers Selection Notes

Select this component for applications requiring multi-constellation GNSS support in compact form factors. Consider the integrated ARM946 MCU for processing-intensive tasks without external controllers. Evaluate power supply requirements across multiple voltage domains. Assess thermal performance within the specified operating temperature range. Verify interface compatibility with host system protocols.

RF Receivers Part Context

The STA8090WG26 belongs to the Teseo III family of GNSS receivers designed for low-cost, small-footprint applications. It combines RF functionality with baseband processing in a single die, reducing bill of materials complexity. This integration enables efficient design for portable devices where space and power consumption are critical constraints.

RF Receivers Replacement Considerations

Check for direct substitutes within the Teseo III series or newer generations like Teseo IV. Verify pin-to-pin compatibility and software migration paths. Confirm that alternative components maintain similar sensitivity and TTFF performance metrics.

RF Receivers FAQ

What satellite navigation systems does the STA8090WG26 support?

It supports GPS, Galileo, GLONASS, BeiDou, and QZSS systems simultaneously.

What is the typical cold start time-to-first-fix for this receiver?

The cold start TTFF is typically 30 seconds.