Applied to the perfect portable ultrasound system technology

With the rising world population, the increasing ageing, worldwide medical diagnosis and care of equipment demand continues to increase, particularly for computer tomography, magnetic resonance instrument, ultrasonic diagnosis equipment, luxury high-end medical electronics demand growth, strong has led the global medical market expansion.

However the current medical equipment are more cumbersome, and expensive, energy consumption is enormous, not very well meet the demand for health care professionals. Therefore, medical electronics markets for compact, energy-efficient and highly cost-effective medical diagnostic equipment is particularly urgent needs.

Ultrasonic system design challenges

Portable ultrasound system is a hospital, clinic, ambulance and remote area ambulance standing medical equipment.

As portable medical equipment widely used in a market, portable ultrasound system also faced the miniaturization, low-power design challenges, users expect to meet portable size and uptime requirements while maintaining acceptable image quality. This requires the designers to reduce energy consumption, but at the same time, you must make sure that the device battery from the runtime to provide adequate power to ensure that the image resolution to ensure the equipment at the scene of action can also play a great performance.

"United States National Semiconductor's efficient simulation technology makes it possible for the above expectations.

"United States National Semiconductor Asia Pacific Marketing Director Mr. Wu Wei said," the innovative PowerWise design ensures that the battery can support device long operation; at the same time, the continuous time Sigma-delta analog/digital converter technology and digital variable gain amplifier technology can improve the image resolution. In addition, the United States National Semiconductor advanced chip packaging technology allows the chip has a low noise, less volume. "Has adopted the United States National Semiconductor analog subsystem of portable ultrasonic system can achieve high resolution images play a match the performance of large instruments, to ensure that the doctor to make an accurate diagnosis, and helps reduce programme volume, reduce power consumption and system cost, highly competitive advantage.

Perfect ultrasonic system solutions

United States National Semiconductor introduces industry's first designed for portable ultrasound systems and the design of the 8-channel ultrasonic transmitter/receiver chipset.

This innovative circuit PowerWise chipset architecture can help engineers design the battery life even longer, and image resolution comparable to large scale ultrasonic scanners, portable ultrasound system.

Paragraph 8 channel transmitter/receiver chipsets are 4 dual-core chip, chip collaborative work between the chipset for unmatched performance and efficiency.

Its built-in all ultrasonic system necessary circuit, including receiving system circuit analog front end (AFE), transmit/receive switching, launch system pulse generator and configurable transmit Beamforming for the system. Its highly integrated features make the system designers can take advantage of the chipset to develop thinner, image more clear, more easy to make an accurate diagnosis accordingly of 128 channel portable ultrasound system.

Chipset analog front end circuits with very unique schema not only ensures superior image quality, but also will B mode power consumption as low as possible, even more than the nearest competitor is also low 10%.

This dual analog front-end circuit also built the industry's highest resolution digital variable gain amplifier (DVGA) and low power consumption in continuous time Sigma-delta (CTSD) analog-to-digital converter (ADC). In addition, digital variable gain amplifier also has a more traditional analog variable gain amplifier that has no merit, for example, each channel can be better aligned and have better signal spectrum performance. There is a continuous-time Sigma-deltaADC itself brick-aliasing signal filtering features. United States National Semiconductor for the analog front end circuitry provides full-featured demo system and evaluation kit for system developers shorten the development cycle, saving development costs.

Mr. Wu said, this combination of United States national energy-efficient PowerWise analog technology and innovative design of the 8-channel ultrasonic transmitter/receiver chipset market, will certainly improve traditional portable ultrasound device image is inferior to large-scale diagnostic equipment, for the majority involved in medical electronic equipment system developers open to explore new areas.