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Intersil: Intersil's Ultra-Low Distortion Stereo Audio Switch Cures Clicks and Pops in MP3 Players and Cell Phones


Published on 2009-01-15 12:53:13, Last Modified on 2009-01-15 12:54:20 - Market Wire
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MILPITAS, CA--(Marketwire - January 15, 2009) - Intersil Corporation (NASDAQ: [ ISIL ]), a world leader in the design and manufacture of high-performance analog and mixed signal semiconductors, today introduced the [ ISL54406 ]. This highly integrated, ultra-low distortion stereo audio switch eliminates unwanted clicks and pops typically caused by powering up and down, muting on and off, and switching between audio sources. The combination of audio performance and reduction in external components makes the ISL54406 the ideal choice for compact MP3 players, docking speaker systems, cell phones, portable DVD players and sound cards.

Superior audio performance is achieved on several levels. First, the ISL54406 delivers Total Harmonic Distortion (THD) of just 0.015 percent at 1mW into a 32-ohm load. The low THD switching path can be interrupted to provide > 110dB of off-isolation for signal muting purposes into 32-ohm or high impedance loads which are typical in consumer and automotive entertainment systems. Recovery from muting is instantaneous even with very large DC blocking capacitors.

This unique instant-on capability needs no timing capacitor and requires only 7 microamps of supply current. The ISL54406 provides both active and standby modes of operation with the standby mode reducing the supply current to a maximum of 5 nanoamps. This minimizes current drain in devices such as portable MP3 players that are placed in a 'hibernation' mode when not in use.

The ISL54406's comprehensive "click and pop" elimination scheme effectively isolates low and high impedance loads from audio spikes and glitches and requires no external timing components to deal with DC blocking capacitors placed between the single supply codec and the load.

Pricing and Availability

The ISL54406 is available now in 1.8mm x 1.4mm µTQFN packages, with prices starting at $0.51 each in 1,000-piece quantities. A 10 Ld 3 x 3 TDFN version is priced at $0.61 each, and the 10 Ld 3 x 3 TDFN T+R version is priced at $0.64 each, both in 1,000-unit quantities.

For more ISL54406 information:[ http://www.intersil.com/cda/deviceinfo/0,1477,ISL54406.html ].

Note to editors: To view a high-resolution downloadable photo of the ISL54406, visit Intersil's photo room at:[ http://www.intersil.com/pressroom/photoarchives.asp ].


About Intersil's Precision Analog Switch Products

Intersil has a broad portfolio of [ analog switches ] that provide excellent performance across the entire input voltage range. Each new device incorporates more than 30 years of market experience into its design. Precision analog switches and [ MUX ]s from Intersil meet today's design challenges for low-voltage, low on-resistance and smaller packaging. Intersil leads in technology innovation with the industry's lowest-distortion MP3/USB 2.0 Voice and High Speed Data switches, the [ ISL54209 ] and [ ISL54213 ], designed for handheld applications. To learn more about Intersil's broad switching portfolio, visit Intersil's Analog Switches, [ Multiplexers ] and [ Crosspoint Switches ] page at[ http://www.intersil.com/switchmux/ ].

About Intersil

[ Intersil Corporation ] is a leader in the design and manufacture of high-performance [ analog ] and mixed signal semiconductors. The Company's products address some of the industry's fastest growing markets, such as, flat panel displays, cell phones, other handheld systems, and notebooks. Intersil's product families address power management functions and analog signal processing functions. Intersil products include ICs for battery management, hot-swap and hot-plug controllers, linear regulators, power sequencers, supervisory ICs, bridge drivers, PWM controllers, switching DC/DC regulators, [ Zilker Labs Digital Power ICs ] and power MOSFET drivers; optical storage laser diode drivers; DSL line drivers; [ D2Audio ] products; video and high-performance operational amplifiers; high-speed data converters; interface ICs; [ analog switches ] and multiplexers; crosspoint switches; voice-over-IP devices; and ICs for [ military ], [ space ] and [ radiation-hardened ] applications. For more information about Intersil or to find out how to become a member of our winning team, visit the Company's web site and career page at [ www.intersil.com ].

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