SAN JOSE, Calif., June 10, 2019 /PRNewswire/ -- As devices
continue to shrink and customers demand ever sleeker products,
Maxim Integrated Products, Inc. (NASDAQ: MXIM) introduces the
MAX98390 smart amplifier with integrated Dynamic
Speaker Management (DSM) algorithm to efficiently deliver louder,
clearer, richer sound at the lowest quiescent power in the market.
The boosted, digital Class D DSM smart amplifier unleashes a
system's full audio potential by safely driving higher power levels
(up to 5.1W) into tiny speakers typically rated for much lower
power between 1 to 3W.
- Details about the MAX98390: http://bit.ly/MAX98390
- Details about Maxim's DSM technology:
http://bit.ly/Dynamic_Speaker_Management
- Hi-res image: http://bit.ly/MAX98390_Image
The miniaturization of consumer devices requires speakers to fit
within smaller form factors, which has led to more applications
moving towards the use of micro speakers. As speakers shrink,
loudness or sound pressure level (SPL) decreases while the resonant
frequency increases, leading to less bass. Driving the speakers
harder to increase loudness and bass response can easily damage the
micro speakers through overheating and over excursion. MAX98390
solves this challenge by utilizing integrated IV (current and
voltage) sense and Maxim's DSM algorithm to drive speakers to their
maximum specified limits, while protecting against over excursion
and over-temperature events. DSM's thermal protection empowers
designers to safely push their speakers well beyond their specified
power rating enabling the speakers to produce their maximum
loudness. DSM's excursion protection enables designers to drive
speakers to their specified excursion limits, producing sound up to
two octaves below the resonant frequency limit.
To properly protect the speaker, amplifier algorithms must know
the characteristics of the speaker, such as resonant frequency
within its enclosure, excursion limit and voice coil thermal limit.
Traditionally, designers had to go through the time-consuming and
complex characterization process or rely on direct supplier support
to characterize their speakers and enclosures. This challenge is
further exacerbated as most projects start prototyping with
multiple speakers per project, requiring several weeks of supplier
support or requiring special equipment and expertise. The MAX98390
significantly reduces the design time through the easy-to-use DSM
Sound Studio GUI that allows customers to quickly and easily
characterize many speakers. Combined with DSM's thermal protection,
the result is maximum loudness across the significantly extended
frequency ranges in minutes, with no complex programming required.
To cater to the miniaturization of devices and shrinking batteries,
the MAX98390 offers industry-leading peak efficiency at 86 percent,
which is even further improved with DSM's Perceptual Power
Reduction (PPR) feature that can yield up to an additional 25
percent efficiency, and the lowest quiescent power consumption of
~24mW, making it the ideal choice for low power devices that need
longer battery life.
Key Advantages
- Louder and Deeper Sound Quality: delivers up to 2.5x
loudness (Sound Pressure Level) and up to 2 octaves deeper bass
versus conventional 5V amplifiers in a small form factor
- Ease of Use: includes Maxim's brand-new DSM Sound Studio
software GUI, which enables designers to clearly hear the DSM
difference in minutes with the Quick Demo feature, and easily
characterize and prototype with their own speakers, significantly
reducing design time and work
- Industry-leading Power Consumption: features lowest
quiescent power in the market with ~24mW; offers peak efficiency of
86 percent with boosted Class D Amplifier; and further improves
efficiency by up to 25 percent with no loss in audio fidelity with
Maxim's DSM PPR feature
- Designed for Manufacturability: On-chip DC resistance
(Rdc) testing can be used on the production line for quality
assurance to ensure speaker is within impedance
tolerance
Commentary
- "Meeting customers' audio expectations given available size and
power constraints gets tougher each day," said Michael Van Den Broek, senior applications
engineer for PUI Audio. "Having a simplified turnkey solution like
the MAX98390 in our toolbox to increase the ability of our micro
speakers makes the job easier and our customers much happier—which
is the ultimate goal."
- "The MAX98390 smart amplifier was designed to boost audio
quality in the smallest form-factor to make it nimble enough to go
into any device," said Greg Mow,
business manager for Mobile Audio Solutions at Maxim Integrated.
"From providing the most balanced and loudest sound to offering the
market's highest efficiency and ease of design, the MAX98390
enables our customers to deliver a best-in-class, immersive sound
experience."
Availability and Pricing:
- The MAX98390 is available at Maxim's website for $1.95; also available from authorized
distributors
- The MAX98390EVSYS# evaluation kit is available for
$200
About Maxim Integrated
Maxim Integrated develops
innovative analog and mixed-signal products and technologies to
make systems smaller and smarter, with enhanced security and
increased energy efficiency. We are empowering design innovation
for our automotive, industrial, healthcare, mobile consumer, and
cloud data center customers to deliver industry-leading solutions
that help change the world. Learn more at
https://www.maximintegrated.com.
Contact:
|
Mariel
Santos
|
|
408-601-3145
|
|
Mariel.Santos@maximintegrated.com
|
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SOURCE Maxim Integrated Products, Inc.