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USB FM Radio

From Silicon Laboratories, Inc.
 

 
This USB FM Radio design is intended as a reference for incorporating FM radio functionality into a USB product. The design consists of two major components, the Si4701 FM radio receiver and the C8051F321 microcontroller with a built-in universal serial bus (USB) peripheral. Due to the high level of system integration of both of these components, the total design is very small with fewer external components than many other solutions.

The system consists of a Windows® application that communicates with the C8051F321 using the USB connection. The C8051F321 microcontroller controls the Si4701 using the serial peripheral interface (SPI). The Si4701 audio outputs are sampled using the C8051F321's analog-to-digital converter (ADC) and sent to the host across the USB interface. The Windows application plays the audio using the PC speakers or headphones.

Products & Services
Network equipment is used to split, switch, boost, or direct packets of information along a network. This product area includes network hubs, switches, routers, bridges, gateways, multiplexers, transceivers and firewalls. Often, network equipment is defined by is protocol or port type (e.g., Ethernet switch, USB hub). Search by Specification | Learn more about Network Equipment
VoIP and IP telephony allows PC users to make phone calls over the Internet or other packet networks via gateways and standard telephones. Search by Specification | Learn more about VoIP and IP Telephony
Network multiplexers combine multiple signals into one signal. Learn more about Network Multiplexers
IC modems enable computers to transmit data over telephone lines or via wireless signals. Learn more about IC Modems
Network modems (modulators-demodulators) are devices or programs that allow computers to transmit data over telephone lines. They convert digital computer data to analog sound waves and then demodulate the carrier signals to decode the transmitted information. Search by Specification | Learn more about Network Modems
Product Announcements
Silicon Laboratories, Inc. - Si473x Multi-Band Radio Receivers
The Si4736/7/8/9 with weather band (WB) support are the newest addition to Silicon Labs' Si473x family of high-performance broadcast audio solutions. (read more)
Black Box Network Services - ServSwitch Wireless KVM Extender
This KVM extender transmits keyboard, video, and mouse signals, plus audio, up to 100 feet without a wire. (read more)
Black Box Network Services - ServSwitch DTX
Think KVM extension over TCP/IP is impossible without software? ServSwitch DTX provides hardware KVM extension for your existing network!... (read more)
Atmel Corporation - AVR MCUs Combine USB, Battery Charging and Analog
New AVR® microcontrollers combine USB controller and high performance analog features. The ATmega16U4 and ATmega32U4 reduce system cost in battery powered devices such as gaming accessories. (read more)
Indesign, LLC. - USB Technology
Indesign has a thorough understanding of USB 1.1 and 2.0 interface standards, requirements, features and protocols. To decrease product USB engineering development time, we developed a software... (read more)
Jennic Limited - JN5139 Wireless Modules
The JN5139-xxx-Myy family is a range of surface mount modules that enables users to implement systems using Jennic's own JenNet networking stack, IEEE802.15.4 or ZigBee with minimum time to market and... (read more)
ACCES I/O Products, Inc. - Model USB-DIO-32
SAN DIEGO, CA-May 23, 2005-ACCES I/O Products reveals its newest digital I/O product, Model USB-DIO-32. This USB device is an ideal solution for adding portable, easy-to-install, digital I/O and... (read more)
 
Topics of Interest
AN1169 USB Mass Storage Class on an Embedded Device FEATURES Author: Sean Justice Microchip Technology Inc. This application note provides key components of an MSD device function driver. The... (Read More)
AN1176 USB Device Stack for PIC32 Programmer's Guide ASSUMPTIONS Author: Bud Caldwell Microchip Technology Inc. 1. Working knowledge of C programming language 2. Familiarity with the USB 2.0 protocol... (Read More)
AN1141 USB Embedded Host Stack Programmer's Guide FEATURES Author: Bud Caldwell Microchip Technology Inc. * Supports USB embedded host applications * Handles device enumeration and configuration *... (Read More)
The Universal Serial Bus (USB) is a simple and common interface for connecting peripheral devices to a personal computer or other host. To harness its flexibility and power with minimal effort,... (Read More)
The Universal Serial Bus (USB) is a simple and common interface for connecting peripheral devices to a personal computer or other host. To harness its flexibility and power with minimal effort,... (Read More)
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