The following white paper uses a typical off-the-shelf isolated DC-DC converter to demonstrate how an active filter will not only provide superior filtering, as compared to the passive approach, but will also provide a simple turnkey solution to meet challenging transient response requirements.
The performance...
Published: Jul 24, 2018
MIPI D-PHY is a practical PHY for typical camera and display applications. It is designed to replace traditional parallel bus based on LVCMOS or LVDS. However, many processors and displays/cameras still use an RGB, CMOS, or MIPI Display Pixel Interface (DPI) as interface. A bridge is often required to connect a processor...
Published: Jul 19, 2018
The first rule of war is “know your enemy”. It is the same principle with Solid State Lighting (SSL) – if you don’t understand how an LED behaves, don’t be surprised when your application doesn’t succeed.
LEDs are non-linear devices. If a low voltage is applied to an LED it does...
Published: Jul 25, 2018
To ensure the stability of voltage regulators and switched mode power supplies, the control loop behaviour must be measured and characterised. A well compensating voltage controller enables stable output voltages and reduces the influence of load changes and supply voltage variations. The quality of this control circuit...
Published: Sep 30, 2020
Optical image stabilization (OIS) addresses the quality of images, and is an idea that has been around for at least 30 years. It has only recently made its way into the low-cost consumer camera market, and will soon be migrating to the higher end camera phones. This paper provides an overview of common design practices...
Published: Jul 19, 2018
Advances in semiconductor technologies from efficient power semiconductors to advanced sensor systems, has lead to the development of intelligent and safe robots. The next evolution of robotics will lead us into era with more autonomous robots and artificial intelligence (AI).
This document exposes ideas on how to...
Published: Jul 16, 2018
To guarantee the correct behavior of real-time software running on embedded processors can pose a significant challenge. Data-dependent control flow, where execution times of many functions are dependent on the data inputs, means that instruction sequences are hard to predict.
This document explains how static timing...
Published: Jul 23, 2018
Many Image Signal Processor (ISP) or Application Processors (AP) use the Mobile Industry Processor Interface (MIPI® ) Camera Serial Interface 2 (CSI-2) standard for image sensor inputs. However, some high resolution CMOS image sensors use a proprietary SubLVDS output format. The Lattice Semiconductor SubLVDS to MIPI...
Published: Jul 19, 2018
Most organizations do not consider production test a top priority, but it is a necessity to prevent major quality issues in the products that represent the company brand in the hands of customers.The costs, however, can be significant and are often greatly misunderstood, especially when there’s no...
Published: Feb 19, 2020
Ask system designers to list the problems they face – it doesn’t matter whether they’re building mobile consumer, automotive, industrial, medical or scientific applications – and inevitably they’ll mention optimizing host processor performance. It’s hardly surprising. The event-driven...
Published: Jul 19, 2018
To ensure the stability of voltage regulators and switched mode power supplies, the control loop behaviour must be measured and characterized. A well compensating voltage controller enables stable output voltages and reduces the influence of load changes and supply voltage variations.
The quality of this control circuit...
Published: Sep 23, 2020
Designers are implementing a wide variety of interface bridging solutions that allow them to transfer data across protocols and, in the process, expand system functionality. The challenge is determining how to most efficiently implement these new bridging solutions without violating system power, footprint and cost requirements....
Published: Jul 19, 2018
Safety, availability, and cost considerations can make performing thorough tests of embedded control devices using the complete system impractical. Hardware-in-the-loop (HIL) simulation is a real-time test technique used to test these devices more efficiently. During HIL test, the physical system that interfaces...
Published: Feb 19, 2020
As LEDs continue to penetrate a wide range of diverse market sectors and become the preferred means of lighting, the requirement for circuit protection cannot be ignored.
This paper was developed to help designers understand common threats to LED lighting systems, and provides the best design practices to implement...
Published: Jul 23, 2018