Cirrus Logic Digital-to-Analog Converter Focuses on Lowering System Costs, Reducing Components in Consumer Home Audio Applica...
July 12 2010 - 10:00AM
Business Wire
Cirrus Logic Inc., (Nasdaq: CRUS) has introduced the CS4354, its
lowest-cost 24-bit digital-to-analog converter (DAC) with
integrated stereo line drivers. Targeting consumer home audio
applications, such as video game consoles, Blu-ray® Disc and DVD
systems, TVs, set-top boxes and digital media players, the CS4354
is Cirrus Logic’s fourth-generation audio DAC with ground-centered
2Vrms line drivers. The CS4354 marks significant progress in
simplifying the design of analog output circuitry by reducing the
need for multiple system components, which saves system cost and
board space.
The CS4354 utilizes an on-chip charge pump to generate a
negative supply and outputs a ground-centered, 2Vrms filtered line
level signal from a single 5 V supply. This architecture provides
improved low-frequency response and audio quality and offers
significant savings in external component costs by eliminating DC
blocking capacitors, mute and pop suppression circuits and the need
for an expensive high voltage power supply.
“The CS4354 has 40 percent fewer pins and requires six fewer
external capacitors than our third generation DAC in this product
category,” said Carl Alberty, director of Marketing, Cirrus Logic’s
Mixed Signal Audio Division. “We are excited to be delivering
smaller and more cost effective DAC solutions to our customers
without sacrificing the performance they have come to expect from
Cirrus audio products.”
The CS4354 supports 24-bit conversion and automatic detection of
audio sampling rates up to 192 kHz. Based on a fifth-order multibit
Delta Sigma converter architecture with low latency digital
filtering, the CS4354 provides 101 dB dynamic range and -86 dB
THD+N with excellent out-of-band noise performance. The device is
powered from a single, +5V supply, supports direct interface to
logic levels from +1.5V to +5V and consumes only 50mW of power
during operation. It also features a power-on-reset circuit to
further simplify system design and combines with the ground
centered outputs and on-chip mute to provide a high performance,
affordable audio DAC solution to designers.
Pricing and Availability
The CS4354 is currently available in a 14-pin SOIC package,
priced at $0.81 in quantities of 10,000.
Cirrus Logic, Inc.
Cirrus Logic develops high-precision, analog, digital and
mixed-signal integrated circuits for a broad range of innovative
customers. Building on its diverse analog, digital and
signal-processing patent portfolio, Cirrus Logic delivers highly
optimized products for a variety of audio and energy-related
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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