NOVOSENSE introduces NSDA6934-Q1: Automotive-grade Class D audio amplifier with digital input
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NOVOSENSE introduces NSDA6934-Q1: Automotive-grade Class D audio amplifier with digital input

　　NOVOSENSE recently announced the launch of the NSDA6934-Q1, a digital-input automotive-grade Class D audio amplifier designed for vehicle audio systems. Featuring four-channel audio output with up to 75W per channel, it supports low-latency mode and sampling rates up to 192kHz. The amplifier offers flexible switching frequencies, multiple modulation options, and comprehensive protection features, making it highly adaptable to various automotive audio system designs.　　Class D amplifiers: Driving the evolution of automotive audio　　As automotive electronics continue to advance, Class D amplifiers have emerged as the preferred choice for vehicle audio systems due to their high efficiency, low heat dissipation, and compact form factor. These amplifiers not only meet modern vehicles’ stringent energy efficiency demands but also enhance audio quality and power output within limited space, playing a key role in the evolution of automotive audio technology.　　Optimized Low-Latency Mode: Reducing Path Delay by Over 70%　　In automotive audio systems, amplifiers boost signals from the DSP (Digital Signal Processor) before transmitting them to the speakers. Traditional amplifiers can contribute to over 30% of total signal transmission latency, impacting system performance.　　The NSDA6934-Q1 features a unique low-latency mode that reduces transmission path delay by more than 70%, granting the DSP additional time for signal processing. This reduces DSP resource demands and enhances the effectiveness of RNC (Road Noise Cancellation). Additionally, the amplifier supports up to 192kHz sampling rates, delivering high-resolution audio with enhanced clarity and detail for an immersive in-car listening experience.　　Flexible Configurations to Suit Various Designs　　The NSDA6934-Q1 provides a wide range of switching frequencies and modulation options, allowing system engineers to optimize efficiency and size.　　Adjustable Switching Frequency (384kHz – 2.1MHz)　　At 384kHz, the amplifier achieves up to 93% efficiency, ideal for applications prioritizing power savings, though it requires a 10μH inductor for operation.　　At 2.1MHz, the amplifier supports a compact 3.3μH inductor, making it suitable for space-constrained smart cockpit integration.　　Selectable Modulation Modes (BD Mode & 1SPW Mode)　　BD Mode (50% duty cycle) ensures superior linearity at high power levels, making it ideal for high-output applications.　　1SPW Mode (20% duty cycle) reduces conduction losses, improving efficiency in low-power scenarios　　Additionally, the NSDA6934-Q1 supports TDM16 data format, ensuring seamless integration with mainstream audio interfaces. With eight selectable I2C addresses, it prevents communication conflicts among peripheral devices. It also features integrated PVDD voltage monitoring, eliminating the need for external resistor dividers and simplifying system wiring and debugging.　　Enhanced EMC Performance & Comprehensive Protection　　The NSDA6934-Q1 incorporates multiple EMC optimization techniques, including slew rate control, phase control, and three spread-spectrum modes (triangular wave, random spread, hybrid spread), helping customers pass system-level EMC tests efficiently.For system reliability, the amplifier integrates multiple intelligent protection and diagnostic functions, including:　　• I2C watchdog for real-time bus monitoring.　　• Thermal protection, which automatically reduces gain under high-temperature conditions.　　• AC/DC diagnostics for real-time power supply monitoring.　　• Comprehensive protection suite, including temperature alarms, over-temperature shutdown, undervoltage, overvoltage, and overcurrent protection, ensuring robust system stability.
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Release time：2025-04-24 17:19 reading：213 Continue reading>>
3PEAK Launches Wide Input Voltage Buck TPP36308, Supporting Multiple Topologies!
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3PEAK Launches Wide Input Voltage Buck TPP36308, Supporting Multiple Topologies!

　　3PEAK (stock code: 688536), a semiconductor company specializing in high-performance analog chips and embedded processors, has introduced its new wide input voltage buck product, TPP36308. The key advantages of the TPP36308 include a wide input voltage range of 4.5 V to 36 V, a continuous output current of 3 A, a selectable operating frequency, and light-load modes. The product is versatile, suitable for application in photovoltaic inverters, servo drives, security monitoring, building intelligence, smart home appliances, and industrial automation.　　TPP36308 Efficiency Test　　In industrial applications where the overall power consumption of the circuit design is crucial, TPP363080 demonstrates exceptional efficiency. Operating under conditions from 12 V to 5 V with an output range of 10 mA to 3 A, it consistently achieves efficiencies above 90%, peaking at 96%. This meets customer demands for high efficiency under various load conditions.　　TPP36308 Temperature Rise Test　　TPP36308 features a high-power density and compact TSOT23-6 package (2.90 mm × 1.60 mm) and can replace products in SOP-8 and TO-220 packages in low-power applications. This allows customers to save on-board space, aligning with the trend towards smaller product designs. Under test conditions with a 25°C ambient temperature, 12-V/24-V input, and 5-V@1.5-A output, the chip case temperatures were 43°C and 48.7°C, respectively.　　TPP36308 Application Recommendations　　TPP36308 has already been widely used in photovoltaic inverters and robotic vacuum cleaners. 3PEAK provides comprehensive power solution offerings for these applications.　　Auxiliary Power Control Board Power Solution for a Photovoltaic Inverter　　TPP36308 Multiple Topology Schemes　　To cater to a broader range of applications, 3PEAK also offers TPP36308 in topologies beyond the classic buck. These include inverting buck-boost, ISO-buck, and flyback, and 3PEAK can recommend specific peripheral parameters based on customer applications. Typical application circuits are as follows:
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Release time：2024-03-01 13:06 reading：3331 Continue reading>>
Nokia Touts <span style='color:red'>NPU</span> for Internet's Next Chapter
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Nokia Touts NPU for Internet's Next Chapter

　　Claiming capabilities that will enable the next phase of Internet evolution, Nokia on Wednesday (June 14) unveiled its next-generation service routers, based on a network processor capable of an eye-popping 2.4 Tb/s performance.　　The chip, the Nokia FP4, is implemented in a 16nm FinFET process—two full nodes ahead of its predecessor, the 40nm FP3. Nokia bills the FP4 as "the world's first multi-terabit chipset" and claims it is up to six times more powerful than any processor currently available despite relatively low power consumption.　　Speaking at a launch event here Wednesday, Basil Alwan president of the IP/Optical Networks business unit at Nokia, offered an ambitious blueprint for the FP4's potential impact on the continuing evolution of the Internet, and the onset of what he termed "cloud-scale routing." He said the chipset offers the performance and heightened security to enable further transformations of the Internet and the Cloud, including immersive communications, the Internet of Things (IoT) and the growth of applications that leverage artificial intelligence.　　"It's fundamental innovation for cloud-scale routing," Alwan said, adding that the FP4 "meets all the requirements for the next chapter of Internet growth."　　Ken Kutlzer, vice president of hardware engineering and hardware product management for Nokia's IP/optical networking business unit, speaks at the product unveiling in San Francisco Wednesday.　　Ken Kutlzer, vice president of hardware engineering and hardware product management for Nokia's IP/optical networking business unit, speaks at the product unveiling in San Francisco Wednesday.　　The FP4 represents Nokia's push to leverage its strength in edge routing to making a meaningful dent in the core router market that has long been dominated by Cisco Systems and Juniper Networks. It powers Nokia's new "petabit-class" 7950 Extensible Routing System for core routing, claimed by the company to be the world's highest capacity router.　　According to Ray Mata, CEO and principal analyst at ACG Research, Nokia has gained enough credibility with network operators through its success in edge routing — where it is the No. 2 player —  to make some noise in the critical core routing market, where performance and reliability are paramount.　　"This gives an opportunity for Nokia to enter into that arena and potentially increase their total available market," Mata said.
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Release time：2017-06-16 00:00 reading：1033 Continue reading>>

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