SI4703-C19-GM

Product Overview

SI4703-C19-GM from Skyworks Solutions Inc. is a digital low-IF FM broadcast receiver. This RF receiver description summarizes the receiver function, operating band, modulation or broadcast standard, interface considerations and sourcing relevance for engineering teams.

The content is written for BOM review and procurement use, focusing on practical receiver parameters rather than internal stock notes.

Key Features

• Manufacturer: Skyworks Solutions Inc.
• Part Number: SI4703-C19-GM
• Device Type: digital low-IF FM broadcast receiver
• Receiver Architecture: Digital low-IF FM receiver with integrated DSP
• Frequency Range: Worldwide FM band support from 76 MHz to 108 MHz
• Functions: Seek tuning, automatic frequency control and automatic gain control
• Audio Features: Stereo/mono processing, volume control and de-emphasis options
• Signal Metrics: Signal strength measurement for seek and quality decisions
• Control Interface: 2-wire / I2C-style host control interface
• Package / Case: 20-pin QFN / QFN-style package family, GM/GMR reel ordering code
• Design Notes: Confirm the firmware revision and package suffix because register sets and RDS support vary across Si470x versions.

Applications

Portable radios, MP3 players, phones, clock radios, docking stations and embedded FM tuner functions.

Consumer or industrial audio designs that need a compact FM receiver IC with digital tuning and simple host control.

Quality & Sourcing

Antrex Electronics can support sourcing for SI4703-C19-GM through available stock checks, BOM consolidation and alternative-lot review. For RF receiver components, packaging condition, date code, MSL handling and original labeling should be verified before shipment.

For project builds, repair support or shortage coverage, Antrex Electronics can coordinate visual inspection, package verification and third-party testing when required. This helps buyers manage risk when sourcing discontinued, legacy or hard-to-find RF receiver parts.