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NXP Reduces Smartphone Interference With Improved Family of Best Efficiency Audio Amplifiers

NXP Reduces Smartphone Interference With Improved Family of Best Efficiency 
Audio Amplifiers 
Automotive Audio Enhancement Supports NXP's Vision of Connecting the
Car 
EINDHOVEN, THE NETHERLANDS -- (Marketwired) -- 07/16/13 --  NXP
Semiconductors N.V. (NASDAQ: NXPI) today announced enhancements to
its industry-leading family of Class-AB audio amplifiers, providing
improved quiescent current reduction and decreased smart phone signal
interference. The integrated GSM input filtering is built in for
increased EMC robustness. Building on NXP's expertise in Best
Efficiency Mode audio applications, the TDF8546A (4x 25Watt) and
TDF8548A (4x 28Watt) are also the industry's first Class-AB
amplifiers to extend line driver detection to 1kOhm load impedance. 
As smartphone connectivity becomes increasingly central to automotive
infotainment applications, the industry has to ensure that audio
quality is not compromised by smartphone signal interference.
Designed specifically for automotive applications, NXP's Class-AB
audio amplifiers provide increased GSM robustness to mitigate the
influence of smartphones on loud speakers, responding to OEMs' demand
for a cost-effective solution that improves sound quality. 
The TDF8546, TDF8546A and TDF8548A amplifiers are quad-channel
Class-AB amplifiers available with NXP's ground-breaking Best
Efficiency Mode operating as low as 6V, reducing power dissipation by
17% compared to other high-efficiency solutions in its class. Both
amplifiers enable a seamless audio experience during sudden supply
voltage drops in hybrid electric vehicles and other cars using
start-stop systems. 
The enhancement of NXP's family of Class-AB audio amplifiers further
supports NXP's vision of connecting the car. From telematics and
car-to-x communications to smarter infotainment systems, NXP is
supplying the chips making the connected car a reality.  
"In-car use of smart devices has become common over the past few
years, but the potential interference they generate creates a major
headache for audio OEMs aiming to provide excellent sound
performance," said Torsten Lehmann, senior vice president and general
manager car entertainment solutions at NXP Semiconductors. "These new
amplifiers significantly reduce the effect that s
mart device signals
can have on the speaker cable, while delivering superior sound
performance. By improving on our best-in-class family of Class-AB
audio amplifiers, NXP continues to provide robust, cost-effective,
high-quality infotainment solutions to the automotive market." 
Features 


 
--  Four channels operating at various signal condition
--  4 x 25W (TDF8546A) output power (14.4V, 10% THD, 4 Ohm)
--  4 x 28W (TDF8548A) output power (14.4V, 10% THD, 4 Ohm)
--  Operating supply voltage from 6 to 18V
--  Excellent sound performance -- no pop noise; suitable for 2 Ohm to 4
    Ohm speakers
--  Best Efficiency Mode -- low quiescent current per channel
--  Power dissipation reduced by 17% compared to other high-efficiency
    Class-AB amplifiers
--  Power dissipation reduced by 35% compared to standard Class-AB
    amplifiers
--  No switch noise due to 'soft switching'
--  Protection against short thermal overload and ESD (Electrostatic
    Discharge)
--  I2C bus diagnostics, including start-up diagnostics, clip detection
    and pre-warning
--  Small footprint: HSOP36 and DBS27 packages

  
Links  


 
--  Product page:
    http://www.nxp.com/products/automotive/audio_amplifiers/class_ab_car_radio/

  
About NXP Semiconductors
 NXP Semiconductors N.V. (NASDAQ: NXPI)
provides High Performance Mixed Signal and Standard Product solutions
that leverage its leading RF, Analog, Power Management, Interface,
Security and Digital Processing expertise. These innovations are used
in a wide range of automotive, identification, wireless
infrastructure, lighting, industrial, mobile, consumer and computing
applications. A global semiconductor company with operations in more
than 25 countries, NXP posted revenue of $4.36 billion in 2012.
Additional information can be found by visiting www.nxp.com. 
Forward-looking Statements 
 This document includes forward-looking
statements which include statements regarding NXP's business
strategy, financial condition, results of operations and market data,
as well as other statements that are not historical facts. By their
nature, forward-looking statements are subject to numerous factors,
risks and uncertainties that could cause actual outcomes and results
to be materially different from those projected. Readers are
cautioned not to place undue reliance on these forward-looking
statements. Except for any ongoing obligation to disclose material
information as required by the United States federal securities laws,
NXP does not have any intention or obligation to publicly update or
revise any forward-looking statements after NXP distributes this
document, whether to reflect any future events or circumstances or
otherwise. For a discussion of potential risks and uncertainties,
please refer to the risk factors listed in NXP's SEC filings. Copies
of NXP's SEC filings are available from the SEC website, www.sec.gov. 
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For further press information, please contact: 
NXP Semiconductors 
Global: 
Eureka Endo 
+44 795 828 7483
eureka.endo@nxp.com 
GC : 
Jannet Chen
+86 21 22055883 
jannet.chen@nxp.com 
NA: 
Hillary Cain
+1 408 518 5227
hillary.cain@nxp.com 
APAC: 
Preeti Gupta
+65 6603 9022
preeti.gupta@text100.com.sg