SI4737-C40-GMR

$3.45

Description：RF RX AM/FM 520KHZ-1.71MHZ 20QFN
Series：-
Mfr：Skyworks Solutions Inc.
Package：Tape & Reel (TR)

SKU:b7e1b4071782 Category: RF Receivers Brand: Skyworks Solutions Inc.

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Product introduction

SI4737-C40-GMR 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 20QFN. Review the specifications below when checking this part for your BOM.

RF Receivers specifications for SI4737-C40-GMR

Description：RF RX AM/FM 520KHZ-1.71MHZ 20QFN
Series：-
Mfr：Skyworks Solutions Inc.
Package：Tape & Reel (TR)
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：2.7V ~ 5.5V
Operating Temperature：-20°C ~ 85°C
Mounting Type：Surface Mount
Package / Case：20-UFQFN Exposed Pad
Supplier Device Package：20-QFN (3x3)
Grade：-
Qualification：-

RF Receivers datasheet and documents for SI4737-C40-GMR

SI4737-C40-GMR

RF Receivers Overview

The SI4737-C40-GMR is a single-chip RF receiver manufactured by Skyworks Solutions Inc., designed for versatile reception across AM, FM, and Weather Band signals. It supports AM frequencies from 520kHz to 1.71MHz, FM from 64MHz to 108MHz, and Weather Band from 162.4MHz to 162.65MHz. The component operates on a supply voltage of 2.7V to 5.5V with a receive current of approximately 19.9mA. It utilizes a 20-QFN (3x3) surface-mount package and functions within a temperature range of -20°C to 85°C.

RF Receivers Feature Summary

Integrates AM, FM, and Weather Band reception capabilities into a single chip
Supports RDS data decoding for FM broadcasts
Includes RSSI functionality for signal strength monitoring

RF Receivers Applications

Portable AM/FM radio receivers
Weather band alert devices
General purpose audio tuning systems

RF Receivers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix matches the required package and temperature grade. Check for recent Product Change Notifications regarding manufacturing location or material updates. Ensure compatibility with existing PCB footprints and design guidelines before integration.

RF Receivers Selection Notes

Select this model when multi-band coverage including Weather Band is required alongside standard AM/FM reception. Consider the 20-QFN footprint constraints and thermal dissipation requirements. Verify that the I2C interface aligns with the host microcontroller's available communication lines. Evaluate power consumption against battery life requirements given the 19.9mA operating current.

RF Receivers Part Context

This component belongs to the SI473x series of highly integrated radio tuners. It shares architectural similarities with other models in the family but offers specific frequency coverage for North American weather bands. The C40 suffix indicates a specific package and temperature variant within the broader product line.