SI4777-A20-GMR

Description：RF RX AM/FM 520KHZ-1.71MHZ 40QFN
Series：-
Mfr：Skyworks Solutions Inc.
Package：Tape & Reel (TR)

SKU:cdf76be21d05 Category: RF Receivers Brand: Skyworks Solutions Inc.

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Product introduction

SI4777-A20-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 40QFN. Review the specifications below when checking this part for your BOM.

RF Receivers specifications for SI4777-A20-GMR

Description：RF RX AM/FM 520KHZ-1.71MHZ 40QFN
Series：-
Mfr：Skyworks Solutions Inc.
Package：Tape & Reel (TR)
Frequency：520kHz ~ 1.71MHz, 64MHz ~ 108MHz
Sensitivity：-
Data Rate (Max)：-
Modulation or Protocol：AM, FM
Applications：General Purpose
Current - Receiving：140mA
Data Interface：PCB, Surface Mount
Memory Size：-
Antenna Connector：PCB, Surface Mount
Features：RSSI Equipped
Voltage - Supply：4.5V ~ 5.5V
Operating Temperature：-40°C ~ 85°C
Mounting Type：Surface Mount
Package / Case：40-VFQFN Exposed Pad
Supplier Device Package：40-QFN (6x6)
Grade：-
Qualification：-

RF Receivers datasheet and documents for SI4777-A20-GMR

SI4777-A20-GMR

RF Receivers Overview

The SI4777-A20-GMR is an RF receiver integrated circuit manufactured by Skyworks Solutions Inc. It supports AM and FM broadcast reception across frequencies of 520kHz to 1.71MHz and 64MHz to 108MHz, respectively. The device features HD Radio tuner capabilities and includes RSSI functionality. It operates on a supply voltage of 4.5V to 5.5V with a receive current of 140mA. The component is housed in a 40-QFN (6x6) package with an exposed pad for surface mount installation. It is rated for an operating temperature range of -40°C to 85°C.

RF Receivers Feature Summary

Supports AM/FM broadcast reception and HD Radio tuning
Integrated RSSI capability
Surface mount 40-QFN package

RF Receivers Applications

Consumer electronics broadcast radio receivers
HD Radio tuners
Weak-signal rural area reception

RF Receivers Procurement Notes

This component is officially listed as obsolete by the manufacturer. Verification of availability should focus on distributor surplus stock or secondary market channels rather than direct manufacturing orders. Confirm the specific suffix GMR matches the required tape and reel packaging format. Cross-reference datasheet revisions to ensure compatibility with existing designs before procurement.

RF Receivers Selection Notes

Select this part for applications requiring combined AM/FM and HD Radio reception within a compact surface-mount form factor. Ensure the design accommodates the 4.5V to 5.5V supply requirement and the 140mA active current draw. Verify that the 40-QFN thermal pad layout meets the specified exposure requirements for proper mounting and heat dissipation during operation.

RF Receivers Part Context

The SI4777 series represents high-performance consumer electronics broadcast radio receivers. This specific model integrates AM, FM, and HD Radio functionalities into a single chip. It is designed for portable and fixed audio devices where space efficiency and signal quality are critical. The product line has been acquired by Skyworks Solutions Inc., affecting long-term support status.