Sound Quality Set to Soar in Smartphones

Sound Quality Set to Soar in Smartphones 
NXP TFA9895 Enhances Mobile Audio Sound Quality With Multi-Band
Speaker Boost 
EINDHOVEN, THE NETHERLANDS -- (Marketwired) -- 11/08/13 --   Will
your next mobile phone have built-in stereo speakers? As handset
makers focus increasingly on audio quality, consumers can look
forward to phones and other mobile devices that achieve higher sound
quality than ever before, without relying on headphones and
accessories. With over 20 million first-generation speaker driver ICs
shipped in the first 12 months, NXP Semiconductors (NASDAQ: NXPI) is
now introducing the TFA9895 -- its second-generation speaker boost
solution -- which further improves the sound quality of handsets and
tablets via a new multi-band compression feature which enhances the
way music and voice sound, even at louder speaker volumes. 
"Over the past year, we've seen a dramatic improvement in audio
playback from phones, with exciting features such as front-facing
speakers and even stereo available in leading handsets. Consumers now
expect to enjoy audio and video without carrying accessories --
triggering a major reversal among handset makers who had
traditionally relied on headphones and external speakers to satisfy
audiophiles," said Shawn Scarlett, marketing director, mobile audio
solutions, NXP Semiconductors. "With its new multi-band compression
algorithm, our latest TFA9895 speaker boost solution helps handset
designers get higher-quality sound out of smaller spaces -- and do so
cost-effectively. For devices where volume is the top priority, we
continue to offer the higher-power TFA9890 introduced earlier this
The multi-band processing feature in the TFA9895 improves audio
quality at louder speaker volumes via more stable high-gain audio
imaging. The TFA9895 also adds a high-frequency noise gate that
improves the sound of poor-quality audio signals. Like its
award-winning predecessor, the TFA9887, the TFA9895 offers a
completely integrated small speaker driver, including integrated
processing and an on-board 5-volt DC/DC converter, as well as
complete protection against speaker failure. Both ICs can deliver 4
watts of peak power into a 4-ohm speaker that is conventionally
limited to 0.5 W.  
Focus on Quality
 The new multi-band algor
ithm and noise-reduction
features complement the existing speaker protection algorithm to
provide high-quality sound from small speakers. The
feedback-controlled excursion protection prevents distortion caused
by hitting the mechanical limits of the speaker, and an advanced clip
avoidance algorithm monitors audio performance and prevents amplifier
clipping even when the power supply begins to sag. The system allows
for bandwidth extension to increase the low frequency response well
below speaker resonance. The device can be configured for stereo
systems, allowing synchronization between devices to ensure good
stereo imaging. 
NXP is the market leader in speaker boost and protection, with the
only IC offering adaptive excursion control which provides real-time,
real-world protection even when the acoustic environment changes.
Systems using the TFA9895 or other NXP speaker boost amplifiers can
greatly improve the sound from small speakers, typically realizing
gains of 6 to 9 dB in output volume and 12 dB in bass response while
also improving system reliability. Alternatively, designers can use
the improved performance to further shrink their acoustic systems,
resulting in smaller and thinner devices.  
As with the previous boost and protection ICs, the entire system is
integrated into a single chip, including the CoolFlux DSP
high-efficiency class-D amplifier with current sensing and DC-to-DC
. The advanced, embedded algorithms require no separate
licensing. Additional tools allow designers to customize their audio
sound quality and choose how to optimize the phone's performance.  

--  NXP TFA9895 product information:

About NXP Semiconductors
 NXP Semiconductors N.V. (NASDAQ: NXPI)
creates solutions that enable secure connections for a smarter world.
Building on its expertise in High Performance Mixed Signal
electronics, NXP is driving innovation in the automotive,
identification and mobile industries, and in application areas
including wireless infrastructure, lighting, healthcare, industrial,
consumer tech and computing. NXP has operations in more than 25
countries, and posted revenue of $4.36 billion in 2012. Find out more
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For further press information, please contact: 
NXP Semiconductors 
Eureka Endo 
+44 795 828 7483 
J.S. Yoo
+82 2 6096 1611 
Hillary Cain
+1 408 518 5227 
Greater China:
Jannet Chen
+86 21 22055883 
Asia Pacific: 
Preeti Gupta
+65 6603 9022 
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