Cirrus Logic Digital-to-Analog Converter Cuts System Costs, Simplifies Consumer Electronics Designs
October 06 2008 - 9:00AM
Business Wire
Cirrus Logic Inc., (Nasdaq: CRUS) has introduced the CS4353 24-bit
digital-to-analog converter (DAC), the latest in its leading
portfolio of audio converter ICs for digital audio applications.
The CS4353 is the third generation Cirrus Logic audio DAC with
integrated 2Vrms line drivers and marks significant progress in
simplifying the design of analog output sections circuitry by
reducing the need for multiple system components and lowering
implementation cost. The CS4353 is the only DAC to feature an
on-chip 2.1 Vrms line driver from a single 3.3-volt power supply,
allowing a 2Vrms voltage after the RC filter. Other DACs that
feature a line driver require noisy high voltage power supplies.
They also output a lower voltage than required by many of today�s
consumer electronics applications, such as set-top boxes, Blu-ray�
Disc players, game consoles and digital televisions. �The CS4353 is
evidence of our commitment to provide engineers audio DACs that are
incredibly easy to design their product around without the need for
bulky, expensive off-chip support circuitry,� said Carl Alberty,
director of Marketing, Cirrus Logic�s Mixed Signal Audio Division.
�Delivering a 2Vrms, ground referenced single-ended output from a
3.3V supply does just that and doesn�t sacrifice audio quality or
analog performance at all.� The CS4353 supports 24-bit conversion,
all audio sampling rates up to 192 kHz, and is based on a
fifth-order multibit Delta Sigma converter architecture with low
latency digital filtering to provide 106 dB dynamic range and -93
dB THD+N. Its ground-centered output architecture not only improves
low frequency response but also allows for the removal of external
DC blocking capacitors and any pop prevention circuitry. In
addition to targeting consumer electronics applications, the CS4353
is also ideal for other digital audio equipment such as effects
processors, musical instruments, digital audio recorders and
automotive audio systems. Pricing and Availability The CS4353 is
currently available in a 24-pin QFN package, priced at $1.28 in
quantities of 10,000. Cirrus Logic Inc. Cirrus Logic develops
high-precision, analog and mixed-signal integrated circuits for a
broad range of consumer and industrial markets. Building on its
diverse analog and signal-processing patent portfolio, Cirrus Logic
delivers highly optimized products for consumer and commercial
audio, automotive entertainment, and industrial and aerospace
applications. The company operates from headquarters in Austin,
Texas, with offices in Tucson, Ariz., Europe, Japan and Asia. More
information about Cirrus Logic is available at www.cirrus.com.
Cirrus Logic and Cirrus are trademarks of Cirrus Logic Inc. All
other product names noted herein may be trademarks of their
respective holders.
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