SI4737-C40-GU

$6.09

Description：RF RX AM/FM 520KHZ-1.71MHZ SSOP
Series：-
Mfr：Skyworks Solutions Inc.
Package：Tray

SKU:1c015c3dea72 Category: RF Receivers Brand: Skyworks Solutions Inc.

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Product introduction

SI4737-C40-GU is listed in the RF Receivers range at ChipApex. The manufacturer field lists Skyworks Solutions Inc.. Its product description is RF RX AM/FM 520KHZ-1.71MHZ SSOP. Review the specifications below when checking this part for your BOM.

RF Receivers specifications for SI4737-C40-GU

Description：RF RX AM/FM 520KHZ-1.71MHZ SSOP
Series：-
Mfr：Skyworks Solutions Inc.
Package：Tray
Frequency：520kHz ~ 1.71MHz, 64MHz ~ 108MHz, 162.4MHz ~ 162.55MHz
Sensitivity：-
Data Rate (Max)：-
Modulation or Protocol：AM, FM, WB
Applications：General Purpose
Current - Receiving：19.9mA
Data Interface：PCB, Surface Mount
Memory Size：-
Antenna Connector：PCB, Surface Mount
Features：RSSI Equipped
Voltage - Supply：2V ~ 5.5V
Operating Temperature：-20°C ~ 85°C
Mounting Type：Surface Mount
Package / Case：24-SSOP (0.154", 3.90mm Width)
Supplier Device Package：24-SSOP
Grade：-
Qualification：-

RF Receivers datasheet and documents for SI4737-C40-GU

SI4737-C40-GU

RF Receivers Overview

The SI4737-C40-GU is an obsolete broadcast AM/FM radio receiver integrated circuit manufactured by Skyworks Solutions Inc. It supports reception of AM (520kHz ~ 1.71MHz), FM (64MHz ~ 108MHz), and Weather Band (162.4MHz ~ 162.55MHz) signals. The device operates on a supply voltage of 2.7V to 5.5V and features an integrated RSSI function. It is housed in a 24-pin SSOP package with surface mount installation, designed for PCB applications within a temperature range of -20°C to 85°C.

RF Receivers Feature Summary

Integrated AM, FM, and Weather Band radio reception capabilities
Supports RDS data processing for FM broadcasts
Includes built-in RSSI functionality for signal strength monitoring
Single-chip solution with surface mount packaging

RF Receivers Applications

Portable AM/FM radio receivers
Weather band alert devices
Embedded audio systems requiring broadcast tuning
Consumer electronics with RDS decoding needs

RF Receivers Procurement Notes

This component is officially classified as obsolete and no longer manufactured by Skyworks Solutions Inc. Procurement should focus on verified direct substitutes such as the SI4735-D60-GM or other compatible models from the manufacturer's current portfolio. Verify datasheet revisions and pin compatibility before integration into new designs.

RF Receivers Selection Notes

Designers should evaluate the SI4737-C40-GU's support for specific frequency bands including weather band and RDS against project requirements. Consider the 24-SSOP package constraints and operating temperature limits. Since the part is obsolete, alternative selection must ensure equivalent interface and performance characteristics while addressing supply chain availability.

RF Receivers Part Context

The SI4737-C40-GU belongs to the Si473x series of single-chip AM/FM radio tuners. This family integrates analog RF front-ends with digital baseband processing. The C40 variant specifically denotes the package and thermal specifications within this product line, targeting general-purpose broadcast reception applications.