Product category:
Analogue and Mixed Signal ICs
News Release from: Intersil | Subject: ISL54400, ISL54401 and ISL54402
Edited by the Electronicstalk Editorial
Team on 27 April 2006
Switches promise best of both worlds
Audio/data switches provide both low-distortion audio and USB switching capabilities.
Intersil's ISL54400, ISL54401 and ISL54402 are the first commercially available audio/data switches in the industry to provide both low-distortion audio and USB switching capabilities Combining data and audio switches eliminates either the USB or headphone connector in devices such as portable MP3 players and camera phones, providing cost savings
This article was originally published on Electronicstalk on 8 Jan 2001 at 8.00am (UK)
Related stories
Ultra-low-power MOSFETs prolong battery life
Intersil has launched its advanced new DenseTrench power MOSFET family of discrete power devices designed for higher-efficiency low-voltage power switching applications.
Programmable up-converter simplifies basestations
Intersil has added a new highly integrated quad up-convertor to its CommLinkT family of digital radio ICs for fixed basestation applications.
Also, automatic USB cable detection and the integration of external components associated with the USB datarate negotiation function results in further cost and space savings.
The devices combine high-bandwidth low-capacitance switches for data signals, with very-low-distortion low-capacitance switches for audio, so they can be used both for USB full-speed data download and 20mW per channel of MP3 encoded stereo audio playback through the same device.
The ISL54400/01/02 improve audio playback quality, eliminate external components and save significant board space over competing solutions.
The devices are designed for mixed audio and data switching in handheld and audio accessory applications.
The ISL54400 is a full-function device that has audio switches that provide a very low-distortion path suitable for MP3 playback into stereo headphone loads and can handle negative signal swings up to 20mW power levels into a 32ohm headphone load without clipping.
It includes USB cable detection and datarate negotiation hardware functions.
The ISL54401 includes the USB cable detection but not the datarate negotiation hardware functions.
The ISL54400 provides none of the USB functions and is a basic audio/data switch.
Target applications for the devices are MP3 and other personal media players, cellular/mobile phones, PDAs, USB switching and audio/USB switching.
The devices are available now in 10-lead TDFN packaging and ultrathin micro QFN, which saves 67% board area compared with a traditional TDFN package.
• Intersil: contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• Electronicstalk Home Page
Search the Pro-Talk network of sites
