SKY77573-12

Overview

The SKY77573-12 is a transmit and receive front-end module designed for quad-band GSM, GPRS, and EDGE cellular handsets. It integrates power amplifier blocks for the GSM850/900 and DCS1800/PCS1900 frequency bands within a single compact package. The device includes impedance-matching circuitry for 50 Ω input and output impedances to ensure signal integrity. It also incorporates transmit harmonic filtering to meet regulatory emission standards. The module supports four-band antenna switching functionality, allowing efficient operation across multiple cellular bands.

Feature Summary

• Integrates dual power amplifier blocks for GSM850/900 and DCS1800/PCS1900 bands
• Includes built-in impedance matching for 50 Ω systems
• Features transmit harmonic filtering capabilities
• Supports four-band antenna switch integration

Applications

• Quad-band GSM mobile phones
• GPRS-enabled handheld devices
• EDGE cellular communication modules

Procurement Notes

Verify component authenticity through official Skyworks channels or authorized distributors. Confirm that the received unit matches the SKY77573-12 marking and packaging specifications. Check for physical damage on the QFN leads. Note that this part is listed as obsolete; ensure compatibility with existing designs before procurement.

Selection Notes

Select this module for legacy quad-band GSM/GPRS/EDGE applications requiring integrated PA and filtering. It is suitable for designs prioritizing low profile and compact form factor. Ensure the system architecture supports the required 50 Ω impedance matching. Consider availability constraints due to its obsolete status when planning new production runs.

Part Context

This component belongs to Skyworks Solutions' portfolio of RF front-end modules for cellular communications. It is specifically engineered for quad-band mobile handset applications. The module consolidates multiple discrete components into a single solution to reduce board space. It represents a specialized solution for older generation cellular standards.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. As the product is marked obsolete, alternative sourcing may require consulting Skyworks for current equivalent recommendations or evaluating compatible third-party solutions.