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：536 Continue reading>>
10 transimpedance amplifier manufacturers in the world
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10 transimpedance amplifier manufacturers in the world

　　In the realm of electronics and signal processing, the Transimpedance Amplifier (TIA) serves as a vital component, enabling the conversion of minute current signals into measurable voltage outputs. Numerous manufacturers specialize in producing high-quality TIAs, catering to a wide array of applications across industries such as telecommunications, optical communication, biomedical instrumentation, and sensor interfacing.　　These manufacturers boast expertise in designing and crafting TIAs with varying specifications, catering to diverse requirements ranging from low-noise precision amplification to high-speed data processing. This introduction provides an overview of some leading manufacturers in the field of Transimpedance Amplifiers, highlighting their contributions, specialties, and technological advancements in this critical segment of electronic devices.　　一、Marvell　　Marvell Technology, Inc. is an American company, headquartered in Wilmington, Delaware, which develops and produces semiconductors and related technology.　　Products　　Compute　　Data Processing Units　　Networking　　Automotive　　DCI Optical Modules　　Ethernet Controllers　　Ethernet Switches　　Linear Driver　　PAM DSP　　Transimpedance Amplifiers　　Fibre Channel　　HDD　　SSD Controller　　ASIC　　二、Analog Devices　　Analog Devices, Inc. (NASDAQ: ADI) is a global semiconductor leader that bridges the physical and digital worlds to enable breakthroughs at the Intelligent Edge. Analog Devices, Inc., also known simply as Analog, is an American multinational semiconductor company specializing in data conversion, signal processing, and power management technology, headquartered in Wilmington, Massachusetts.　　Products　　A/D Converters (ADC)　　Amplifiers　　Analog Functions　　Audio Products　　Clock and Timing　　D/A Converters (DAC)　　Embedded Security and 1-Wire　　iButton and Memory　　Interface and Isolation　　Motor and Motion Control　　Optical Communications and Sensing　　Power Management　　Processors and Microcontrollers　　RF and Microwave　　Sensors and MEMS　　Switches and Multiplexers　　Video Products　　三、Renesas　　Renesas Electronics Corporation delivers trusted embedded design innovation with complete semiconductor solutions that enable billions of connected, intelligent devices to enhance the way people work and live. A global leader in microcontrollers, analog, power, and SoC products, Renesas provides comprehensive solutions for a broad range of automotive, industrial, home electronics, office automation, and information communication technology applications that help shape a limitless future.　　Products　　Microcontrollers & Microprocessors　　Analog Products　　Automotive Products　　Clocks & Timing　　Interface　　Memory & Logic　　Power & Power Management　　Programmable Mixed-signal, ASIC & IP Products　　RF Products　　Sensor Products　　Space & Harsh Environment　　Wireless Connectivity　　四、Semtech　　Semtech Corporation is a supplier of analog and mixed-signal semiconductors and advanced algorithms for consumer, enterprise computing, communications and industrial end-markets. It is based in Camarillo, Ventura County, Southern California. It was founded in 1960 in Newbury Park, California.　　Products　　Wireless RF　　Circuit Protection　　Signal Integrity　　Professional AV　　PerSe® Smart Sensing　　Broadcast Video　　Power Management　　五、Macom　　MACOM Technology Solutions is a developer and producer of radio, microwave, and millimeter wave semiconductor devices and components. The company is headquartered in Lowell, Massachusetts, and in 2005 was Lowell’s largest private employer. MACOM has more than 70 years of application expertise with multiple design centers, Si, GaAs and InP fabrication, manufacturing, assembly and test, and operates facilities throughout the United States, Europe, and Asia.　　Products　　RF/Microwave & mmWave　　Optical　　Networking　　六、Texas Instrument　　Texas Instruments Incorporated is an American information technology company headquartered in Dallas, Texas that designs and manufactures semiconductors and various integrated circuits. It is one of the top 10 semiconductor companies worldwide based on sales volume.　　They design, manufacture, test and sell analog and embedded semiconductors in markets that include industrial, automotive, personal electronics, communications equipment and enterprise systems.　　Products　　Amplifiers　　七、Xiamen Uxfastic　　Founded in February2003, XIAMEN UX HIGH-SPEED IC CO., LTD is one of the first companies in China specializing in the design of front-end, high-speed optical communication transceiver chips, and has participated in the formulation of over 20national industry standards with more than 100 independent intellectual property rights (IPR). As the leading enterprise in the domestic optical communication chip industry, it has been listed as the national enterprise with IPR advantages and the national technologically advanced small and medium-sized enterprise in SRDI.　　Products　　Trans-impedance amplifier　　Laser driver　　Limiting amplifier　　Transceiver　　MCU　　八、MaxLinear　　MaxLinear is an American hardware company. Founded in 2003, it provides highly integrated radio-frequency analog and mixed-signal semiconductor products for broadband communications applications. It is a New York Stock Exchange-traded company.　　Products　　Access　　Connectivity　　Infrastructure　　Power Management　　Interface　　九、EoChip　　Xiamen EoChip is headquartered in Xiamen, Fujian. The company focuses on the research and development of high-speed optical communication integrated circuit chips and low-power MCU chips.　　Products　　TIA　　BM TIA　　Current Mirror MCU　　BM LA　　Transceiver　　十、Qorvo　　Qorvo is an American multinational company specializing in products for wireless, wired, and power markets. The company was created by the merger of TriQuint Semiconductor and RF Micro Devices, which was announced in 2014 and completed on January 1, 2015. It trades on Nasdaq under the ticker symbol QRVO.　　Products　　Amplifiers　　Control Products　　Discrete Transistors　　Filters & Duplexers　　Frequency Converters & Sources　　Integrated Products　　Optical　　Passives　　Power Solutions　　Switches　　Wireless Connectivity
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Release time：2024-01-10 16:13 reading：1449 Continue reading>>
What is the function of transimpedance amplifier?
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What is the function of transimpedance amplifier?

　　The Transimpedance Amplifier (TIA) stands as a cornerstone in modern electronics, a quiet hero behind the scenes, enabling the transformation of minuscule current signals into meaningful and measurable voltage outputs. Its role extends across diverse domains, from optical communications to biomedical instrumentation, showcasing its versatility and indispensability.　　As technology strides forward, the transimpedance amplifier continually evolves, adapting to ever-changing demands for faster speeds, higher precision, and improved signal conditioning. This article explores the essence and significance of the transimpedance amplifier, shedding light on its types, principles, applications, and pivotal role in shaping various fields of science and engineering.　　What is transimpedance amplifier?A transimpedance amplifier is an electronic device used to convert current into a proportional voltage signal. It’s commonly employed in applications involving photodiodes or other similar sensors that generate a current output in response to light or other stimuli.　　The primary function of a transimpedance amplifier is to convert this tiny current signal into a usable voltage output. It does so by providing a low-impedance path for the current to flow through, while simultaneously generating an output voltage proportional to this input current.　　By using feedback elements like resistors or operational amplifiers, transimpedance amplifiers can accurately convert and amplify these small current signals into measurable voltage signals. They are widely used in various fields such as optical communication, photodetection, medical instrumentation, and many other sensor-related applications.　　What are the different types of transconductance amplifiers?Transconductance amplifiers are devices that convert a voltage input into a proportional current output. There are various types based on their implementation and application. Here are a few:　　Operational Transconductance Amplifier (OTA): An OTA is a versatile building block used in analog signal processing. It uses an operational amplifier in a configuration where the output current is proportional to the differential input voltage.　　Differential Amplifier: This amplifier has two input terminals and amplifies the voltage difference between these inputs. It’s often used in instrumentation and signal processing.　　Field-Effect Transistor (FET) Amplifier: FETs can be used to create transconductance amplifiers, particularly in integrated circuits. MOSFET-based transconductance amplifiers are common due to their suitability for IC design.　　Voltage-Controlled Current Source (VCCS): It’s a basic type of transconductance amplifier that generates an output current proportional to an input voltage.　　Current-Feedback Operational Amplifier (CFOA): This is a specialized operational amplifier where the current, rather than the voltage, is used as the input signal. It’s commonly used in current-mode signal processing.　　Translinear Circuit: These circuits are based on exponential devices (like diodes) and produce an output current that’s a function of the logarithm or exponential of the input voltage.　　Why do we need transimpedance amplifier?Transimpedance amplifiers serve several crucial purposes in various applications:　　Convert Current to Voltage: Many sensors, such as photodiodes or photomultiplier tubes, generate current signals in response to light or other stimuli. Transimpedance amplifiers convert these tiny current signals into measurable voltage outputs, making them easier to process and analyze.　　Signal Amplification: They amplify weak current signals. Since the output of sensors like photodiodes is usually very small, amplifying these signals to usable levels is essential for accurate measurement and further processing.　　Low-Impedance Conversion: Transimpedance amplifiers provide a low-impedance path for the input current. This prevents loading effects on sensitive sensors, maintaining the integrity of the signal and preventing distortion or alteration.　　Noise Filtering: They can help in filtering out unwanted noise. By amplifying the signal and suppressing noise that might be present, transimpedance amplifiers improve the signal-to-noise ratio, enhancing the accuracy of measurements.　　Wide Application Range: These amplifiers find application in various fields, including optical communication, medical instrumentation (such as pulse oximeters), laser-based systems, spectroscopy, and many sensor-related applications where precise current-to-voltage conversion is needed.　　What are the applications of transimpedance amplifier?　　Transimpedance amplifiers find applications in various fields due to their ability to convert current signals into voltage signals accurately. Some key applications include:　　Photodetection: In photodiodes or photomultiplier tubes used in cameras, optical communication systems, or light sensors, transimpedance amplifiers convert the tiny current produced by incident light into a measurable voltage signal for image capture or data transmission.　　Optical Receivers: They’re integral in fiber optic communication systems, where they amplify the weak current generated by incoming optical signals, allowing for accurate data retrieval and transmission.　　Biomedical Instruments: Used in medical devices like pulse oximeters, where they convert the current generated by photodiodes measuring oxygen saturation in blood into a voltage for monitoring and diagnostics.　　Spectroscopy and Analytical Instruments: Transimpedance amplifiers help convert the current generated by sensors measuring light absorption or emission in spectrometers, enabling precise analysis in fields like chemistry, environmental science, and material analysis.　　Laser Diode Control: They assist in controlling and stabilizing the output of laser diodes by converting their current output into a voltage for feedback control, ensuring consistent performance.　　Particle Detectors: In scientific experiments or industrial applications using particle detectors, transimpedance amplifiers convert the current generated by these detectors into measurable voltage signals for analysis.　　Sensor Interfaces: They serve as front-end signal conditioning components for various sensors, converting their current outputs into voltage signals suitable for further processing by microcontrollers or other devices.　　What is the difference between transconductance and transimpedance amps?Transconductance amplifiers and transimpedance amplifiers serve different purposes and have distinct functionalities:　　Transconductance Amplifier:　　Input-Output Relationship: Transconductance amplifiers convert a voltage input into a proportional current output. In other words, they measure the change in output current in response to a change in input voltage.　　Functionality: These amplifiers are used to control current flow based on voltage inputs. They’re commonly utilized in applications where a varying input voltage needs to control or modulate a current, such as in audio amplifiers, filters, and voltage-controlled oscillators.　　Example: Operational Transconductance Amplifiers (OTAs) are a type of transconductance amplifier.　　Transimpedance Amplifier:　　Input-Output Relationship: Transimpedance amplifiers, on the other hand, convert a current input into a proportional voltage output. They measure the change in output voltage in response to a change in input current.　　Functionality: These amplifiers are particularly useful when dealing with sensors that output current signals, like photodiodes or photomultiplier tubes. They convert the tiny current generated by such sensors into measurable voltage signals, amplifying and conditioning them for further processing or analysis.　　Example: Used extensively in optical communication systems, biomedical instruments (like pulse oximeters), and various sensors where current signals need to be converted into voltage signals for processing.　　How does transimpedance amplifier work?A transimpedance amplifier (TIA) works by converting a current input into a proportional voltage output. It’s commonly used to amplify and convert small current signals from sensors, like photodiodes, into measurable and usable voltage signals. Here’s how it typically operates:　　Input Stage: The TIA receives a small current signal from the sensor, such as a photodiode, which is proportional to the incident light or other stimuli.　　Feedback Configuration: The TIA employs feedback components, usually a resistor or an operational amplifier in a specific configuration, to provide a low-impedance path for the input current.　　Virtual Ground Principle (in operational amplifier-based TIAs): In cases where an operational amplifier is used, the inverting input terminal is often set at virtual ground potential, maintaining it at a stable voltage level.　　Conversion to Voltage: The input current flows through the feedback resistor, producing a voltage across this resistor proportional to the input current (as per Ohm’s Law: Voltage = Current × Resistance). This voltage becomes the output of the amplifier.　　Amplification and Signal Conditioning: The TIA amplifies this voltage signal to a level suitable for further processing or analysis. The gain of the amplifier, determined by the feedback resistor and the amplifier’s characteristics, determines the extent of signal amplification.　　Output Stage: The amplified voltage signal is then available as the output of the transimpedance amplifier, which can be used for various purposes like measurement, analysis, or further signal processing.　　How do I choose a transimpedance amplifier?Choosing a transimpedance amplifier (TIA) involves considering several key factors that align with your specific application requirements. Here’s a guideline to help you select the right TIA:　　Input Signal Characteristics:　　Input Current Range: Determine the range of input currents your sensor or photodiode produces. Ensure the TIA’s input stage can handle this range without saturation or distortion.　　Bandwidth: Consider the frequency range of your signal. Choose a TIA with a bandwidth sufficient to process the frequencies you’re dealing with.　　Gain and Sensitivity:　　Amplification Requirement: Determine the level of amplification needed. Different TIAs offer different gain values, so select one that matches your amplification requirements.　　Noise Performance: Evaluate the TIA’s noise specifications, especially for low-level signals. Lower noise figures are crucial for accurate measurement in sensitive applications.　　Speed and Response Time:　　Bandwidth and Speed: For high-speed applications, choose a TIA with the required bandwidth and response time that aligns with your signal processing needs.　　Component and Design Features:　　Feedback Components: Assess the type of feedback network used in the TIA. Depending on your application, choose between resistive, capacitive, or hybrid networks.　　Input and Output Impedance: Ensure compatibility with your sensor or subsequent stages in your circuit.　　Power Supply and Environment:　　Supply Voltage: Ensure the TIA operates within your available power supply range.　　Temperature and Environmental Conditions: Consider the operating temperature range and environmental conditions if your application involves extreme conditions.　　Application-Specific Considerations:　　Optical Communication vs. Biomedical: Different applications might require specific TIAs optimized for their use. For instance, optical communication may demand higher speeds, while biomedical applications might emphasize low noise and accuracy.　　Datasheet Evaluation:　　Review the TIA’s datasheet thoroughly to understand its specifications, performance characteristics, and application notes provided by the manufacturer.　　Testing and Evaluation:　　If possible, test the TIA in your specific application scenario or review case studies and user experiences to ensure it meets your needs effectively.　　ConclusionIn the vast landscape of signal processing and sensor interfacing, the Transimpedance Amplifier stands tall as a fundamental bridge, connecting the world of current-based signals to the realm of voltage-processing circuits. Its ability to convert, amplify, and condition minute current inputs from sensors like photodiodes has revolutionized countless industries.　　As we navigate the complexities of modern technology, the TIA remains a steadfast ally, adapting to the growing demands of speed, precision, and reliability. Its significance endures, promising innovation and advancement in fields ranging from telecommunications to medical diagnostics, ensuring that the subtle currents of our world are transformed into actionable and valuable voltage signals. The Transimpedance Amplifier’s legacy persists—a silent champion in the landscape of electronic engineering.
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Release time：2024-01-08 14:32 reading：1639 Continue reading>>
NOVOSENSE NSUC1610: Micro&Special Motor Driver SoC for Automotive-qualified Chips
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NOVOSENSE NSUC1610: Micro&Special Motor Driver SoC for Automotive-qualified Chips

　　As integrated thermal management technology continues its relentless evolution, the quest for enhanced model selection and the platformization of electronic valves and pump components has ushered in an era of single-chip integrated micro&special motor driver System-on-Chips (SoCs). This innovative solution takes the original components, including the MCU, power supply, MOS drive, and LIN communication module, and amalgamates them into a single cohesive package. This integration not only simplifies peripheral circuits but also significantly reduces the need for additional peripheral devices. Furthermore, it fosters standardization of interfaces and control algorithms while simultaneously slashing system costs and elevating reliability to new heights.　　NOVOSENSE NSUC1610 integrates a Cortex M3 processor, power MOSFET and DAC. It supports a 4-wire LIN bus and dual-channel temperature sensor which can be used for power-side over temperature shutdown and low-voltage-side temperature detection inside the chip.　　This highly integrated product NSUC1610 can be used to design small-sized, low power, high-efficiency motor intelligent actuator applications for automotive, include but are not limited to electronic water valves in thermal management systems, air conditioning electronic vents, active air intake grille system actuators (AGS/AGM), seat ventilation brushless direct current motor (BLDC) drives, with light steering headlights (AFS), and more. Rotating/lifting large screen control, automatic charging port and automatic door handle.
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Release time：2023-09-20 13:49 reading：4227 Continue reading>>
AnalogySemi Launches High Precision, ± 275V High Common Mode Differential Amplifier IND90x
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AnalogySemi Launches High Precision, ± 275V High Common Mode Differential Amplifier IND90x

　　AnalogySemi, an excellent domestic analog and digital analog hybrid chip designer dedicated to providing high-quality chips, has announced the launch of the IND90x series high-precision, high reliability, ± 275V high common mode voltage differential amplifier. This series of products has excellent DC accuracy and reliability performance, with a maximum gain error temperature drift of 3ppm/° C. The actual testing of ESD HBM can reach up to 1.75kV, which is superior to similar products. The IND90x series differential amplifier can be used as an alternative to isolation amplifiers, isolation operational amplifiers, and Hall sensors, and is widely used in various high common mode voltage applications, such as high-voltage battery pack voltage and current monitoring, battery voltage measurement for stacked battery packs, power automation, power supply current monitoring, and motor control scenarios.　　Features　　High common mode voltage range: ± 275VCMRR: 90dB (minimum)Power supply voltage range: ± 2.0V to ± 18VStatic current: 570 μ A (typical value)Excellent DC accuracy:Offset voltage: ± 850 μ V (maximum value)Offset voltage temperature drift: 10 μ V/° C (maximum)Gain error: 0.035% (maximum)Gain error temperature drift: 3ppm/° C (maximum)Gain nonlinearity: 0.0001% FSR (typical value)• AC performanceBandwidth: 240kHzSwing rate: 1.6V/ μ s• Input protection rangeCommon mode voltage: ± 500VDifferential voltage: ± 500V• Packaging: SOIC-8Due to the enhanced protection of input pins, the IND90x precision differential amplifier can withstand the impact of common mode or differential overload up to instantaneous 500V, and is widely used as an alternative to isolated operational amplifiers in many scenarios that do not require current isolation. When replacing isolation amplifiers, IND90x not only effectively reduces design costs, but also avoids the ripple, noise, and additional static power consumption caused by the input power supply of the isolation amplifier. In addition, the bandwidth of 240kHz and extremely low nonlinearity make the IND90x's AC performance significantly better than traditional isolation amplifiers, thereby achieving better system measurement accuracy.　　In addition to the above advantages, the IND90x further strengthens the input protection structure, coupled with better ESD performance, giving it unique advantages for applications such as hot swapping. Therefore, the IND90x product can also be widely used in various high common mode voltage applications, such as measuring the voltage of individual batteries in stacked battery packs, power automation, power supply current monitoring, and motor control.　　As the first high common-mode differential amplifier of analog, the launch of IND90x not only fills the gap in the layout of analog semiconductor operational amplifiers, but also continues to expand the product lineup of analog semiconductor amplifiers. At present, AnalogySemi's amplifier products have been mass-produced into seven categories, including low-power amplifiers, instrument amplifiers, zero temperature drift amplifiers, current sampling amplifiers, current power monitors, high common mode differential amplifiers, etc., with over 200 product models. In the future,AnalogySemi will continue to improve the amplifier product family to meet the diverse needs of customers with a rich product range.
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Release time：2023-08-23 11:12 reading：2495 Continue reading>>
Microchip Introduces Its First Automotive-Qualified 10BASE-T1S Ethernet Devices
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Microchip Introduces Its First Automotive-Qualified 10BASE-T1S Ethernet Devices

　　To support new automotive functionality while keeping system complexity low, OEMs are moving away from domain-based solutions and toward zonal architectures. Many of these new architectures rely on the widespread rollout of Ethernet in vehicles, and the recently-released 10BASE-T1S Ethernet standard has been a game changer in expanding and unifying this network. This week, Microchip announced the release of its first automotive-qualified 10BASE-T1S PHY transceivers.　　The LAN8670/1/2 10BASE-T1S Ethernet PHYs are functional safety ready and designed for use in ISO 26262 applications. These devices now make it possible to connect low-speed devices that previously required their own communication systems into a standard Ethernet system in automotive applications.　　“Microchip continues to prioritize connectivity solutions for the automotive industry with the expansion of its line of 10BASE-T1S products,” said Matthias Kaestner, vice president of Microchip’s automotive products business unit. “This new technology will connect the sensors and actuators used in the physical world all the way to the cloud, and it will enable a seamless Ethernet architecture everywhere.”　　The ability to connect multiple Ethernet PHYs to a common bus line makes it simpler to implement automotive applications on a single, well-known architecture and saves implementation costs by reducing cabling and switch ports. The LAN8670/1/2 enables the network edges to use Ethernet and Internet Protocol (IP) to easily communicate with the rest of the network infrastructure. These devices include advanced PHY diagnostics to provide the user with troubleshooting capabilities. In addition, sleep/wake functionality allows for low-power modes.　　The 10BASE-T1S device specifications include 10 Mbps, half-duplex mode, flexible topology with multidrop bus line and point-to-point and use a single balanced pair of conductors. These devices also feature enhanced electromagnetic compatibility/electromagnetic interference (EMC/EMI) performance. Time-Sensitive Networking (TSN) support allows for synchronized timing across far-reaching Ethernet networks. Time synchronization is critical for many applications throughout automotive zonal architectures.　　Microchip Extends Support for 10BASE-T1S　　To support the future of 10BASE-T1S systems, Microchip Technology recently announced the launch of a series of new automotive-qualified 10BASE-T1S devices. The company's new portfolio of 10BASE-T1S devices includes the LAN8670, LAN8671, and LAN8672 PHYs.　　With support for 10BASE-T1S, the LAN8670/1/2 devices (datasheet linked) can transmit and receive data at a rate of 10 Mbit/s over a single balanced pair of conductors. This capability enables efficient data transmission, even in environments where space and resources are limited. The devices can also connect multiple PHYs to a common mixing segment. This not only reduces weight and implementation costs by requiring fewer connectors, individual cables, and switch ports but also simplifies the implementation of automotive applications.　　These devices are said to feature enhanced EMC/EMI performance to help meet the stringent standards for automotive environments. Other features include support for time-sensitive networking (TSN) and qualification to AEC-Q1000 Grade 1.　　Microchip hopes this new series will help simplify the design of far-reaching Ethernet networks that are common to zonal architectures.
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Release time：2023-07-27 09:14 reading：2709 Continue reading>>
Ameya360:Novosense automotive-qualified Integrated Absolute Pressure Sensor NSPAS1
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Ameya360:Novosense automotive-qualified Integrated Absolute Pressure Sensor NSPAS1

　　NSPAS1 is a calibrated absolute pressure sensor launched by NOVOSENSE for vehicle intake pressure, NEV vacuum boosting system and motorcycle electronic injection. The product adopts automotive-qualified signal conditioning chip to calibrate and compensate the output of MEMS piezoresistive die, ensuring excellent reliability of the product while integrating the two chips to greatly reduce the package size.        At the same time, this product can provide standard output in its operation temperature range without customer calibration, which can accelerate the process of product development and mass production; the product complies with the AEC-Q100 reliability standard.　　Product Features　　Operating temperature range: -40℃~125℃　　High accuracy in full temperature range:　　Better than ±1%F.S. in the range of - 0℃~85℃　　Better than ±1.5%F.S. in the range of -40℃~125℃　　Support -24 v to 28V over voltage and reverse voltage protection　　Fluorinated gel protection, compatible with oil and gas environment　　Faster response time less than 0.8ms　　Support absolute output/ratio-metric output, with output curve customized　　Disconnection detection, output clamping, output alarm function　　Pressure range 10kPa~400kPa, which can be customized　　AEC-Q100 qualified　　Package:SOP-8 (7.3mm x 7.3mm)　　Application　　Automotive: motorcycle three-in-one sensor, vehicle TMAP intake pressure detection, BPS battery pack thermal runaway pressure detection, EGR-TMAP exhaust gas recirculation pressure detection, canister desorption pressure detection, VBS vacuum boosting system sensor, ECU/VCU atmospheric pressure detection, seat air bag pressure detection　　Industrial: pressure transmitter, industrial vacuum degree testing, etc.　　Functional Block Diagram
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Release time：2023-02-16 15:50 reading：5622 Continue reading>>
NOVOSENSE launched the latest automotive-qualified chips - I²C GPIO extension, half-bridge driver, three-state buffer
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NOVOSENSE launched the latest automotive-qualified chips - I²C GPIO extension, half-bridge driver, three-state buffer

　　Leading analog and mixed signal IC company NOVOSENSE Microelectronics (short as NOVOSENSE) has recently launched a variety of automotive-qualified IC products including IC GPIO expansion chip, 40V multi-channel half-bridge driver and three-state buffer for automotive, industrial and other applications.　　NOVOSENSE automotive-qualified I?C IO expander NCA9539-Q1 provides up to 16 bits of GPIO expansion for I2C bus, which is widely used in automotive infotainment system, automotive assistant driving system, body, xEV powertrain and other modules. Operating at temperatures as high as 125 ℃, it provides enhanced anti-interference capability in the harsh environment, while meeting customer requirements on both cost and performance.　　40V automotive-qualified multi-channel half-bridge driver NSD830x-Q1 is capable to realize the full-bridge and half-bridge driver modes through SPI interface, supporting various loads like DC brushed motor, bipolar stepper motor, relay and LED, etc. In automotive systems, the solution can be widely used in HVAC flap control, electric side view mirror and domain/zonal controller.　　NOVOSENSE NCA824X series is an 8-channel three-state buffer, which can improve the driving ability of bus-oriented transceivers, clock drivers, and ensure the accuracy of signal timing. This device is usually used for motor driver, EV/HEV Traction Inverter, Solar Inverter, LED display and other applications.       The product series is available in two versions: dual power supply and single power supply. Single power supply is with two-way transmission or one-way data transmission functions. Dual power supply is the upgraded version, which better meets customers' requirements for system upgrade and revision, and help customers realize bi-directional voltage conversion flexibly, with the function of Level shift.
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Release time：2023-01-28 14:39 reading：3051 Continue reading>>
Ameya360:Nordic Semiconductor Multi-function PMIC Simplifies System Design
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Ameya360:Nordic Semiconductor Multi-function PMIC Simplifies System Design

　　Nordic Semiconductor is expanding its power management IC (PMIC) portfolio by releasing a third PMIC in mid-2023. The nPM1300 expands the company’s PMIC offering by adding support for both charging of larger batteries and four regulated power rails.　　Optimized for efficiency, the compact nPM1300 (3.1-by-2.4mm WL-CSP or 5-by-5mm QFN) is digitally configurable through an I2C-compatible Two Wire Interface (TWI). The digital interface provides access to several system management functions that are usually implemented as discrete functions in Bluetooth Low Energy (LE) embedded designs, such as hard reset, battery fuel gauge, system-level watchdog, power loss warning, and recovery from failed boot.　　“Nordic entered the PMIC market because existing power management solutions were not optimized for compact, ultra-low power IoT applications. Available PMICs leave it up to the designer to implement vital functionality using discrete components—functions that naturally belong inside a PMIC and can be implemented at almost no cost,” says Geir Kjosavik, Product Director – PMIC, Nordic Semiconductor. “So, we did just that. Nordic’s customers will be delighted to have access to on-chip functions that enhance product safety and provide additional ways of conserving battery energy.”　　The nPM1300 is designed to provide highly efficient power regulation for Nordic’s nRF52 and nRF53 Series advanced wireless multiprotocol Systems-on-Chip (SoCs). The PMIC’s four regulated power rails and battery charger make it ideal for compact and advanced IoT products based on, for example, an nRF5340 SoC host and multiple peripheral functions such as sensors. Examples include advanced wearables and portable medical applications.　　The nPM1300 PMIC operates from an external power supply of 4V to 5.5V and can operate from a battery voltage down to 2.4V. Two power rails are regulated by separate DC/DC buck converters that are configurable between 1V and 3.3V and up to 200mA maximum current. The other two power rails operate as load switches—switching currents of up to 100mA from external sources—but can also perform as Low Drop Out (LDO) voltage converters when powered directly by the nPM1300. When operating as LDOs, these power rail outputs are configurable between 1V and 3.3V with a maximum output current of 50mA. The unregulated input voltage is also available as an output from the nPM1300.　　The nPM1300 charges single-cell Li-ion, Li-Pol, and LiFePO4 batteries with a linear charging module that supports up to 800mA charge current. The termination voltage is programmable from 3.5V to 4.45V. The battery charger features automatic thermal regulation with programmable maximum chip temperature during charging to enable simple thermal management that can be adapted to any system requirement.　　The nPM1300 brings other new advanced features to Nordic’s PMIC range including: USB port detection with automatic current limits of 100mA or 500mA through standard USB or up to 1.5A through USB-C PD (Power Delivery); dynamic power path management which automatically switches to battery power if a mains power connection is removed; voltage, current and temperature monitoring for accurate fuel gauging; and ultra-low current hibernate mode with a programmable wake-up timer in addition to the other system management features already mentioned. The PMIC also features three LED drivers and five GPIOs that can be re-purposed to direct control lines to time-critical control functions as an alternative to serial commands.　　The nPM1300 is available for limited sampling now, and will be available to order from Nordic’s distributors mid-2023.
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Release time：2023-01-19 13:38 reading：3137 Continue reading>>
Audio Power Amplifiers Targeted at eCall, Telematics Applications
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Audio Power Amplifiers Targeted at eCall, Telematics Applications

　　STMicroelectronics' latest audio amplifiers are designed for automotive applications like eCall, telematics, and wherever an audio channel needs to reproduce human voice, music, or warning messages at a standard output power level of up to 10W.　　The FDA803S and FDA903S are the newest single-channel fully differential 10W Class-D audio power amplifiers in the STMicroelectronics FDA (fully digital amplifier) family. They are designed for automotive applications like eCall, telematics, and wherever an audio channel needs to reproduce human voice, music, or warning messages at a standard output power level of up to 10W.　　The amplifiers integrate an I2S front end, digital core, 24-bit digital-to-analog converter (DAC) with 100dB resolution, and class-D PWM output stage. The integrated digital audio processing ensures high sound quality within a compact circuit footprint. Feedback within the chip, before the external L-C output filter, simplifies the circuit design and saves space.　　With full I2C configurability and in-play diagnostics that include clipping detection, thermal warning, overcurrent protection, and open-load detection, both amplifiers minimize external components and bill-of-materials costs. The FDA903S additionally integrates a real-time load-current monitor, allowing self-diagnostic capability compatible with the demands of functional-safety applications up to ASIL A.　　Both devices come in QFN32 5-by-5mm exposed pad-down packages that enable a compact and cost-effective, fully digital design without the need for a heatsink. The low component count and heatsink-free implementation minimize the bulkiness of power amplifiers built using these ICs. Also benefiting from low quiescent current, the opportunity to minimize size, weight, and power consumption contributes towards improving overall vehicle energy efficiency.　　The FDA803S and FDA903S feature an I2S digital input and a time-division multiplexing (TDM) interface. They can be configured for various sampling frequencies between 8kHz up to 96kHz to optimize the performance with a wide variety of audio sources. The lower sampling frequencies, from 8kHz to 32kHz, enable designers to save memory space in applications such as warning tone generators.　　The EVAL-FDA903S evaluation board gives designers a jump-start to new audio projects based on either device.
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Release time：2022-12-29 14:58 reading：2055 Continue reading>>

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