Audio & Radio

Automotive Digital Radios

Automotive Digital Radios

Leading car makers rely on our scalable, high-performance radio solutions to deliver vehicles built for a diverse world. In fact, seven of the top 10 automobile manufacturers use Silicon Labs tuners.

Part Number Description
Si461x Digital Radio Processor Low Power, High-Performance Digital Radio Processors
Si462x Digital Data Receiver High-Performance Digital Radio Receivers with RDS
Automotive Tuners

Automotive Tuners

 

Silicon Labs’ 100% CMOS automotive tuners provide full receptive functionality from antenna to audio for the automotive market. Each family includes a pin-and software-compatible portfolio of highly integrated receivers that support worldwide radio band requirements including FM, AM, shortwave (SW), longwave (LW), NOAA weatherband (WB), FM radio data system (RDS) and DAB Band III and L-Band.

 

Receivers

Part Number Description
Si4790x High-performance FM/AM/RDS/DAB Receiver/HD Radio Tuner for HD Radio Data Services, automotive qualified AEC-Q100
Si477x High-Performance AM/FM Radio Receiver and HD Radio Tuner
Si476x FM/AM/SW/LW/WB/RDS Receiver and HD Radio Tuner, automotive qualified AEC-Q100
Si475x FM/AM/SW/LW/RDS Receiver, automotive qualified AEC-Q100
Si474x FM/AM/SW/LW/WB/RDS Receiver, automotive qualified AEC-Q100
Si463x NEW Single chip AM/FM/HD/DAB/DAB+ Digital Radio Receivers with RDS

Data Receivers

Part Number Description
Si4768/69 High-performance FM RDS/RBDS Data Receiver with MPX Output/Multi-band Scanner/HD Radio Tuner for HD Radio Data Services, automotive qualified AEC-Q100
Si4749 High-performance FM RDS/RBDS Data Receiver, automotive qualified AEC-Q100

Receivers with Audio Post-processing

Part Number Description
Si47911/12 High-performance Automotive AM/FM Radio Receiver and HD Radio™/DAB/DAB+/DMB/DRM Tuner with Audio System, automotive qualified AEC-Q100
Si47920/21 High-performance Automotive AM/FM Radio Reciever and HD Radio™ Tuner with Audio System, automotive qualified AEC-Q100
Class D Audio Drivers

Si824x Class D Audio Drivers

The Si8241/44 Audio Gate Drivers facilitate high fidelity, class D amplification with many advantages over competing gate drivers. These drivers offer the benefits of precise dead time adjustment for the best balance of low total harmonic distortion (THD) and high system efficiency. The individually isolated drivers facilitate simpler system topologies, external component flexibility and high functional integration for small installed size and competitive cost.
See the sound quality performance of the Si824x audio driver over the audible spectrum using the Class D Sound Quality Demonstration.
In general, Class D amplifier implementation can be difficult due to input level shifting requirements. Most available Class D drivers lack the capability to eliminate level shifting and those drivers that do, have other unwanted peculiarities. In contrast, the Si824x internal isolation provides the level shift function internally and transparent to the user; and only a single TTL PWM input signal is required to drive a two-state class D amplifier. The combined benefits of low THD, high operating efficiency integrated level shifting and simpler system architecture make the Si824x the best Class D Audio driver available.

Product Matrix

Part Number Data Sheet UVLO Voltage (V) Package Type Outputs Input Type Isolation Rating (kV rms) Drive Strength

Si8241BB-B-IS1

8 NB SOIC16 High Side / Low Side PWM 2.5 0.5 A

Si8241CB-B-IS1

10 NB SOIC16 High Side / Low Side PWM 2.5 0.5 A

Si8244BB-C-IS1

 
8 NB SOIC16 High Side / Low Side PWM 2.5 4 A

Si8244CB-C-IS1

 
10 NB SOIC16 High Side / Low Side PWM 2.5 4 A
Digital radios

Si468x Digital Radio Receivers

The Si468x single-chip digital receivers are the industry’s first fully integrated, 100% CMOS digital radio broadcast receivers ICs from Silicon Labs. The Si468x family provides revolutionary advances in size, power consumption, and performance to enable high-volume, cost-sensitive multimedia products to incorporate digital broadcast features. The family offers all-in-one, ultra-low power, multi-band digital broadcast receivers to support global analog and digital radio standards including AM, SW, LW, FM, FM RDS, HD, DAB, DAB+, DMB, and DRM(30). The Si468x digital radio receivers are the most cost-effective single-chip digital radio receivers available in the market supporting worldwide radio reception and certified for both Digital Radio Tick Mark and AM/FM HD Radio.

Part Number Data Sheet Description Mono/Stereo RDS FM AM AMHD FMHD DAB/DAB+ HD Radio Certification
Si4682

FM/HD Radio Receiver w RDS Stereo Yes Yes No No Yes No Yes
Si4683

AM/FM/HD Radio Receiver w RDS Stereo Yes Yes Yes Yes Yes No Yes
Si4684

FM/DAB/DAB+ Receiver w RDS Stereo Yes Yes No No No Yes No
Si4685

AM/FM/DAB/DAB+ Receiver w RDS Stereo Yes Yes Yes No No Yes No
Si4688

FM/HD Radio/DAB/DAB+ Receiver w RDS Stereo Yes Yes No No Yes Yes Yes
Si4689

AM/FM/HD Radio/DAB/DAB+ Receiver w RDS Stereo Yes Yes Yes Yes Yes Yes Yes
FM Radios

FM Radios

The FM radio receiver families leverage digital integration and 100% CMOS process technology to deliver a completely integrated solution that requires only one external supply bypass capacitor and less than 10mm² of board space.

FM Radio Receivers

Part Number Description
Si4702 FM Receiver
Si4703 FM Receiver with RDS
Si4704 FM Receiver, no external antenna required
Si4705 FM Receiver with RDS, no external antenna required
Si4706 Enhanced FM RDS/TMC Reciever with RDS, no external antenna required
Si4707 Weather band radio receiver
Si4708 FM Receiver, small footprint for portable devices
Si4709 FM Receiver, small footprint and RDS for portable devices

 

FM Radio Transmitters

Part Number Description
Si4710 FM Transmitter
Si4711 FM Transmitter with RDS
Si4712 FM Transmitter with Receive Power Scan (RPS)
Si4713 FM Transmitter with RDS and Receive Power Scan (RPS)

 

FM Radio Transceivers

Part Number Description
Si4720 FM Tx/Rx with Receive Power Scan
Si4721 FM Tx/Rx with RDS and Receive Power Scan
Multiband Radios

FM/AM, Shortwave, Longwave, Weather Band Radio Receivers. The Si473x, Si474x, Si4707, Si4831/35 and Si4840/44 devices are the industry’s first fully integrated, 100% CMOS FM/AM/SW/LW and WB radio receiver ICs. Offering unmatched integration and PCB space savings, the Si47xx ICs require only two external components and less than 15mm² of board area excluding the antenna inputs.

Product Overview

Multi-band Radios

FM/AM, Shortwave, Longwave, Weather Band Radio Receivers. The Si473x, Si474x, Si4707, Si4831/35 and Si4840/44 devices are the industry’s first fully integrated, 100% CMOS FM/AM/SW/LW and WB radio receiver ICs. Offering unmatched integration and PCB space savings, the Si47xx ICs require only two external components and less than 15mm² of board area excluding the antenna inputs.

Part Number Description
Si4730 FM/AM Receiver
Si4731 FM/AM Receiver with RDS
Si4734 FM/AM/SW/LW Receiver
Si4735 FM/AM/SW/LW Receiver
Si4736 FM/AM/Weather Band Receiver
Si4737 FM/AM/Weather Band Receiver with RDS
Si4738 FM/Weather Band Receiver
Si4739 FM/Weather Band Receiver with RDS
Si4820 Mono FM/AM Receiver
Si4824 Mono FM/AM/SW Receiver
Si4825 Advanced Mono FM/AM/SW Receiver
Si4831 Stereo FM/AM Receiver
Si4835 Stereo FM/AM/SW Receiver
Si4836 Advanced Stereo FM/AM/SW Receiver
Si4822 Mono FM/AM Receiver
Si4826 Mono FM/AM/SW Receiver
Si4827 Advanced Mono FM/AM/SW Receiver
Si4840 Stereo FM/AM Receiver
Si4844 Stereo FM/AM/SW Receiver