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Texas Instruments Incorporated (TI) today introduced a new series of automotive LiDAR, clock and radar chips designed to help automakers improve vehicle safety by introducing more autonomous driving features to more types of vehicles. Texas Instruments' new LMH13000 is an integrated high-speed LiDAR laser driver that enables ultra-fast rise times for improved real-time decision-making. Body Acoustic Wave (BAW)-based automotive clock products, namely the CDC6C-Q1 oscillator and the LMK3H0102-Q1 and LMK3C0105-Q1 clock generators, improve the reliability of advanced driver assistance systems (ADAS). To support the needs of evolving ADAS, Texas Instruments' new AWR2944P millimetre-wave radar sensor is equipped with advanced front and corner radar capabilities.

‘Our new automotive analogue and embedded processing products help automakers both meet current safety standards and drive acceleration towards a crash-free future.’ Xiangyuan Zhao, director of technical support for Texas Instruments China, said, ‘Semiconductor innovations provide automakers with the reliability, accuracy, integration and affordability they need to improve vehicle autonomy across their fleets.’

Measuring up to 30% Longer Distance for Improved Real-Time Decision Making

LiDAR is a key technology for the future of safe self-driving cars, providing a detailed 3D map of the driver's surroundings. This enables vehicles to accurately detect and quickly react to obstacles, traffic and road conditions, resulting in improved real-time decision-making. Texas Instruments' new LMH13000 is an integrated, high-speed laser driver that delivers an ultra-fast rise time of 800 ps and extends the measurement range by up to 30 per cent compared to discrete solutions. The device integrates low-voltage differential signalling (LVDS), complementary metal-oxide-semiconductor (CMOS) and transistor-transistor-logic (TTL) control signals, eliminating the need for large capacitors or other external circuitry. This integration also reduces system cost by an average of 30 per cent while reducing the size of the solution by a factor of four, allowing design engineers to discretely install compact, affordable LiDAR modules in more areas and on more vehicles.

As LiDAR technology reaches higher output currents, pulse duration varies dramatically with temperature, making it challenging to meet human eye safety standards. Texas Instruments' LMH13000 laser driver delivers adjustable output currents up to 5A with only 2% variation over the ambient temperature range of -40°C to 125°C, compared to up to 30% variation in discrete solutions. The device's short pulse width generation and current control enable the system to comply with the U.S. Food and Drug Administration's Class 1 human eye safety standards.

Designing Reliable ADAS with New BAW-Based Automotive Clocks

Electronics in ADAS and in-vehicle infotainment systems must operate reliably in the face of temperature fluctuations, vibration and electromagnetic interference. Thanks to Texas Instruments' BAW technology, the new CDC6C-Q1 oscillator and LMK3H0102-Q1 and LMK3C0105-Q1 clock generators are up to 100 times more reliable than traditional quartz clocks, with a time-base failure rate of 0.3. Enhanced clock accuracy and resilience to harsh conditions enable next-generation vehicle subsystems to operate with greater security, simpler data communications and faster data processing. and higher data processing speeds.

In addition, Texas Instruments has introduced the AWR2944P, a new front- and corner-mounted radar sensor based on the widely adopted AWR2944 platform, with enhancements that improve vehicle safety by extending detection range, improving angular accuracy and enabling more sophisticated processing algorithms.

Key enhancements include:

Improved signal-to-noise ratio;

Enhanced computing power;

Greater memory capacity;

Integrated radar hardware accelerators that enable microcontrollers and digital signal processors to perform machine learning for edge AI applications.

Texas Instruments' new automotive radar, clocking and radar solutions assist engineers in designing adaptable ADAS for a safer, more automated driving experience.