STA2058

Specialized Overview

The STA2058 is a high-sensitivity GPS baseband processor from the TESEO platform, integrating an ARM7TDMI CPU running at 66 MHz. It features 256 KB Flash and 64 KB RAM, supporting SBAS (WAAS/EGNOS). Key performance metrics include -146 dBm acquisition sensitivity and -159 dBm tracking sensitivity. Time to first fix is 1s reacquisition, 2.5s hot start, 34s warm start, and 39s cold start, with autonomous accuracy of 2 meters. The device operates between -40 °C and 85 °C and supports external memory interfaces.

Specialized Feature Summary

• Integrated high-performance GPS engine with embedded Flash for software customization
• Support for SBAS augmentation systems WAAS and EGNOS
• Extensive peripheral set including USB 1.1, CAN 2.0, UARTs, SPIs, I2Cs, and ADCs
• Multiple low-power operating modes managed by reset and clock control unit

Specialized Applications

• Consumer handheld devices
• Portable navigation devices (PND)
• In-vehicle navigation and telematics systems

Specialized Procurement Notes

Verify component status as the datasheet explicitly identifies the STA2058 as obsolete. Confirm availability through authorized distributors or secondary markets. Ensure that any replacement components meet the required interface and performance specifications for legacy designs.

Specialized Selection Notes

Select this component only if the specific ARM7TDMI architecture and legacy interface requirements align with the design. Evaluate the need for external memory support via the EMI if internal storage is insufficient. Consider the LQFP64 or LFBGA144 package options based on board space constraints.

Specialized Part Context

The STA2058 serves as the baseband processor within STMicroelectronics' TESEO GPS platform, typically paired with the STA5620 RF Front-End. It targets applications requiring standalone GPS processing capabilities without external controllers, offering a complete solution for location-based services in portable and automotive electronics.

Specialized Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. As the product is marked obsolete, engineers must identify alternative GPS baseband solutions that support similar interface protocols and performance levels.