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Intersil’s Ultra-Low Distortion Stereo Audio Switch Cures Clicks and Pops in MP3 Players and Cell Phones
Intersil’s ISL54406 Stereo Audio Switch Delivers Low Total Harmonic Distortion,
Audio Muting and “Click and Pop” Elimination on Just 7 Microamps of Supply Current
MILPITAS, CA, Jan 15, 2009 – Intersil
Corporation (NASDAQ Global Select: 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 32Ω load. The low THD switching path can be interrupted to provide >110dB
of off-isolation for signal muting purposes into 32Ω 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 MUXs
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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