Ultra Small Cirrus Logic Portable Audio Codec With Class H Technology Improves Battery Life Up to Two Hours
October 28 2008 - 9:01AM
Business Wire
Manufacturers of portable devices such as media players, navigation
devices, wireless headsets, voice recorders and gaming products now
have access to Cirrus Logic Inc.�s (Nasdaq: CRUS) flagship portable
audio codec, the CS42L55. Consuming only 5.1 mW quiescent power in
playback mode and featuring a unique bimodal, patent-pending Class
H technology, the 24-bit CS42L55 reduces power consumption by
nearly 50 percent compared to Class A/B amplification found in
portable applications today. This innovation helps to increase
battery life operating at standard audio sample rates and
delivering power into headphones in real-world audio playback
conditions by as much as two additional hours while maintaining
high audio quality. The CS42L55 features an ultra small 5x5 mm
footprint, and at 0.45 millimeters in height, it is one of the
thinnest portable audio codec available today. �No other portable
audio codec in production offers the combination of performance,
feature integration, battery life and overall small size like the
CS42L55,� said Jason Rhode, president and chief executive officer,
Cirrus Logic. �This IC is a prime example of why Cirrus Logic has
become the new technology innovator in low-power audio products. We
continue to take significant market share in portable audio
products as customers value the innovation that we provide.� The
CS42L55 features automatic, supply-adjusting bimodal Class H
headphone driver technology and an innovative charge pump
architecture with ground-centered outputs. These technologies have
become the innovative foundation for Cirrus� line of portable audio
products and allow its codecs to achieve ultra low power
consumption and EMI performance well below industry requirements.
Based on 24-bit advanced multibit Delta-Sigma technology, the
CS42L55 operates from a single 1.8 V or 2.5 V power supply and can
deliver 1 VRMS line output from a 1.8 V supply. When driving
headphones from the same supply it can deliver 17 milliwatts per
channel of high-quality, 96 dB dynamic range audio. The CS42L55
also provides a 2:1 stereo input multiplexer and a USB master clock
input and supports sample rates up to 48 kHz. The CS42L55 also
features analog volume control that helps to increase performance
and reduce the overall noise floor. Further, pseudo differential
outputs allow for routing signals while reducing noise coupling in
analog signals. Pricing and Availability The CS42L55 is available
today in a 36-pin xQFN package, priced at $1.73 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.
Cirrus Logic (NASDAQ:CRUS)
Historical Stock Chart
From Jun 2024 to Jul 2024
Cirrus Logic (NASDAQ:CRUS)
Historical Stock Chart
From Jul 2023 to Jul 2024