NXP Semiconductors NV (NASDAQ: NXPI) has announced the availability of two new car audio amplifiers, TDF8530 and TDF8546, for energy-saving automotive start-stop systems. The TDF8530 is an ultra-efficient 4-channel Class D audio amplifier that supports the 6V voltage standard for starting and stopping vehicles. TDF8546 is a 4-channel class AB amplifier with a breakthrough best efficiency mode (Best Efficiency Mode), which can work normally at a voltage as low as 6V, which reduces the power by 17% compared to other high-efficiency solutions of the same level Consume. In the case where the power supply voltage of hybrid electric vehicles, micro-hybrid vehicles, mild hybrid vehicles and other vehicles using a start-stop system suddenly drops to 6V, both amplifiers can ensure a continuous high-quality audio experience.
Drue Freeman, Vice President of Global Sales and Marketing, NXP Semiconductors Automotive Electronics Division, said: "Start-stop systems are quickly becoming a common solution for reducing fuel consumption and CO2 emissions, especially in the face of urban traffic environments that require frequent start / stop. We The 6V audio amplifier is designed to provide a seamless experience with excellent sound quality for energy-saving vehicles. By providing class AB and class D amplifiers that integrate a variety of protection and advanced diagnostic functions, NXP provides a great way to design reliable energy-saving car audio systems. Flexibility. This is another best example of how we can use high-performance mixed-signal technology to achieve energy efficiency gains for the entire vehicle subsystem, thereby helping customers improve the energy efficiency of driving various vehicles. "
Yongmin Moon, chief research engineer of Hyundai ’s automotive multimedia core technology team, said: “No matter what type of hybrid electric vehicle you drive, consumers should get a seamless and smooth in-car entertainment experience. With excellent sound quality and in-vehicle With high stability in the environment and outstanding energy efficiency, the NXP TDF8530 amplifier is an ideal choice for our high-performance audio solutions for energy-conscious consumers. "
4 channel ultra high energy efficiency class D amplifier with 6V operating voltage
The TDF8530 is the latest member of NXP ’s strong lineup, highly integrated, high-performance automotive Class D amplifier product portfolio, which brings concert hall-level sound quality to in-vehicle entertainment systems. This 4-channel Class-D amplifier is ideal for car audio hosts and audio system platforms. High-end home entertainment systems such as iPod® docks can also benefit from the TDF8530's outstanding audiophile quality. The new Class D amplifiers can also support new applications such as automotive environmental audio systems (for example, to simulate the roar of engines for electric vehicles) or active noise reduction systems.
In addition to the maximum operating voltage of 24V and the output power of 72W per channel, the TDF8530 also has comprehensive diagnostic and protection functions to ensure the overall robustness of the automotive system. The advanced diagnostic module controlled by the I2C bus contains unique start-stop diagnostics, as well as many other functions such as speaker protection, clip detection and AC load treble detection. In addition, the TDF8530 amplifier has excellent EMC performance to provide the best sound quality at maximum power. The hardware integrated thermal overload protection function can prevent the device from overheating.
The main features of TDF8530 ultra-high energy efficiency 4-channel Class D amplifier:
4 BTL channels with impedance of 4Ω or 2Ω
4 x 26W / 72W output power (14.4V / 24V, 10% THD, 4Ω)
Operating voltage range: 6V to 24V
Excellent sound quality-lower DC offset gas burst noise Hardware controlled thermal overload and thermal protection
I²C control and comprehensive diagnosis (such as editing and load detection)
HSOP44 package
4 channel best energy efficiency class AB amplifier with 6V operating voltage
The TDF8546 Class AB amplifier provides an efficient and cost-effective solution for in-car entertainment systems for hybrid and electric vehicles. Compared with other Class AB energy-efficient amplifiers, the power consumption of the TDF8546 best energy-efficient Class AB amplifier is reduced by 17%. TDF8546 can also eliminate the switching noise in the signal path, and provide comprehensive industry-best diagnosis and protection functions to ensure the robustness of the car. Many car audio system manufacturers including Visteon have selected the TDF8546 amplifier.
The main features of TDF8546 best energy efficiency 4-channel class AB amplifier:
4 channels can work under different signal conditions
4 x 25W output power (14.4V, 10% THD, 4Ω)
Working voltage from 6V to 18V
Excellent sound quality-no air burst noise; suitable for speakers from 2Ω to 4Ω Best energy efficiency mode-lower quiescent current per channel Compared to other energy-efficient class AB amplifiers, power consumption is reduced by 17%
Compared to standard class AB amplifiers, power consumption is reduced by 35%
No switching noise due to switching in the signal path Short-term thermal overload prevention and static electricity protection
I2C bus diagnosis, including start-stop diagnosis, clip detection and early warning Small package: HSOP36 and DBS27 packages
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