In Volume Production Today, CS53L30 Features Four Analog or Digital
Mic Inputs For High-Precision Voice Processing
AUSTIN, Texas--(BUSINESS WIRE)--
Focusing on enabling enhanced voice processing features in smartphones,
tablets and other consumer electronics applications, Cirrus Logic, Inc.
(Nasdaq: CRUS) has introduced the ultra-low power CS53L30
analog-to-digital (A/D) converter.
With ultra-low power consumption of less than 2.5 mW per channel, the
CS53L30’s high-performance, four-channel microphone A/D converters
enhance voice processing features such as noise suppression, acoustic
echo cancellation and multi-channel beamforming
and offer improved performance in voice capture processing for voice
control and recognition. The CS53L30 is currently shipping in volume
production in multiple handsets to a leading manufacturer of
high-quality smartphones.
“The performance of today’s voice processing algorithms relies heavily
on the integrity of the captured audio source,” said Carl Alberty,
director of marketing for Cirrus Logic’s Mixed Signal Audio Division.
“With its high-precision analog performance, the CS53L30 will launch a
new generation of mobile consumer products that differentiate the voice
experience and offer improved voice control with the user interface.”
In a typical microphone-array application, multiple microphones embedded
within a device aim to hone in on the audio’s source and eliminate or
attenuate surrounding noise. With the CS53L30, each of the four
microphone channels has a dedicated mic bias for improved
channel-to-channel separation, which enhances the performance of
beamforming algorithms. Digital signal processing features such as
high-pass filters, noise gates and volume controls provide further
pre-conditioning, which is essential to improve voice-processing
performance.
A flexible input front end accommodates a combination of digital and
analog microphone inputs in fully differential, pseudo-differential and
single-ended configurations. A single CS53L30 can output its four
channels of audio data up to 48 kHz sample rate over two I2S
ports, or a single TDM port in master or slave mode. For applications
that require additional mic inputs, up to four CS53L30 A/D converters
can be used together to output 16 channels of data over a single TDM
line allowing for seamless system integration.
The CS53L30 can be controlled through a high speed I2C
control port and is powered by a 1.8V nominal analog supply and a
typical 3.6V battery supply.
Pricing and Availability
The CS53L30 is available in a 30-ball 0.4-mm pitch WLCSP package and
32-pin 5 X 5-mm QFN package. The QFN package is priced at $1.31 (USD)
and the WLCSP package is priced at $1.03 (USD) in quantities of 100,000.
Cirrus Logic, Inc.
Cirrus Logic develops high-precision, analog and mixed-signal integrated
circuits for a broad range of innovative customers. Building on its
diverse analog 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 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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Source: Cirrus Logic, Inc.