Friday, August 12, 2016

NXP Semiconductors - Electronic IC Devices

NXP Semiconductors brings you a broad portfolio of advanced, trendsetting standard ICs products. they include standard and specialty Logic, I2C Logic, innovative Interface products, Microcontrollers, Analog, and RF.

NXP Semiconductors - Electronic IC Devices

They also have Discrete and Power Semiconductors like MOSFETs, Thyristors, Bipolar transistors and even Diodes.

NXP creates semiconductors, system solutions and software that deliver better sensory experiences in mobile phones, personal media players, TVs, set-top boxes, identification applications, cars and a wide range of other electronic devices.

Solutions in RF Identification, Power management Chips, Connectivity and for HandHeld Devices.

NXP (for Next eXPerience) Semiconductors is the name for the new semiconductor company founded by Philips.

ADC1x13DW1 Demo board from NXP

ADC1x13DW1 Demo board from NXP

"NXP's ADC demo board is suitable for dynamic performance evaluations from low to high IF configuration. The FPGA eases the evaluation and analysis of the ADC dynamic and enables use of the full JESD204A feature set"

Saturday, August 06, 2016

Analog Devices - Semiconductors and Signal Processing

They develop Analog Semiconductors, Digital Signal Processing, high performance signal processing solutions. Broadband Products, RF/IF Components, Embedded Processing and DSP.

Analog Devices - Semiconductors and Signal Processing

Products Include - Amplifiers, Processors, MEMS, A/D Converters, Temperature Sensors, RF Amplifiers, Differential Amplifiers, Thermal Management, D to A Converters, Microcontroller and Embedded Processing and DSP.

Circuit Note CN0147 - Powering a Fractional-N Voltage Controlled Oscillator (VCO) with Low Noise LDO Regulators for Reduced Phase Noise

Circuit Note CN0147 - Analog Devices

This circuit uses low noise, low dropout (LDO) linear regulators to supply power to a wideband integrated PLL and VCO. Wideband voltage controlled oscillators (VCOs) may have increased sensitivity to power supply noise, hence, ultralow noise regulators are recommended for best performance.

The evaluation board, which uses the ADP150 LDOs to power the ADF4350. The ADP150 represents the industry’s lowest noise LDO in the smallest package at the lowest cost.

Analog Devices, Inc
One Technology Way Norwood, MA 02062-9106, USA.



Monday, August 01, 2016

Data, Media and Telecommunications Standards

Wireless Communications now have voice, data, media. It has capability of the Internet, making a portable device part of the World Wide Web. There are companies and institutions that are making this utopia of a connected world possible with the systematic approach.

The Communications Network

Now with IoT, WSN and M2M a complexity arises. Robots, Drones, Automobiles and Machines have wireless connectivity with an IP address or a Phone Number. All this is possible when we think of technologies more like Wi-Fi and WiMax merging with mobile-cellular systems. We have to abandon the Towers and go for Modular Daisy Chain of Repeaters on Street Poles and Fiber Optic Nodes. Maybe like these folks say LightRadio Antenna Module

ETSI - European Telecommunications Standards - ETSI produces globally-applicable standards for Information and Communications Technologies (ICT). Includes - Fixed, mobile, radio, converged, broadcast and internet technologies.

ITU-T - Infocommunications Standards - "ITU-T Recommendations are defining elements in information and communication technology (ICT) infrastructure. Whether we exchange voice, data or video messages, communications cannot take place without standards linking the sender and the receiver. See " Telecommunication Standardization Bureau" TSB

CDG - 3G Wireless CDMA Development - "The CDMA Development Group (CDG), founded in December 1993, is an international consortium of companies who have joined together to lead the adoption and evolution of 3G CDMA wireless systems around the world." See also CDMA Technology

3GPP - Mobile Broadband Standard - "The original scope of 3GPP was to produce Technical Specifications and Technical Reports for a 3G Mobile System based on evolved GSM core networks …" Global System for Mobile communication (GSM), GPRS and EDGE.

IEEE - Broadband Wireless Access Standards - "The IEEE 802.16 Working Group on Broadband Wireless Access is creating the IEEE 802.16 family of WirelessMAN Standards for Wireless Metropolitan Area Networks."

Tuesday, July 12, 2016

Handbook of Operational Amplifier Applications

Here are two important educational reference books from Texas Instruments in PDF format.

"While in the process of reviewing Texas Instruments applications notes, including those from the recently acquired Burr-Brown - I uncovered a couple of treasures, this handbook on active RC networks and one on op amp applications. These old publications, from 1966 and 1963, respectively, are some of the finest works on op amp theory that I have ever seen. Nevertheless, they contain some material that is hopelessly outdated. This includes everything from the state of the art of amplifier technology, to the parts referenced in the document - even to the symbol used for the op amp itself:"

Handbook of Operational Amplifier Applications

Handbook of Operational Amplifier Applications - PDF
by Bruce Carter and Thomas R. Brown - sboa092a.pdf - 2.1 Mb

The operational amplifier is an extremely efficient and versatile device. Its applications span the broad electronic industry filling requirements for signal conditioning, special transfer functions, analog instrumentation, analog computation, and special systems design. The analog assets of simplicity and precision characterize circuits utilizing operational amplifiers.

Handbook of Operational Amplifier Active RC Networks - PDF
by Bruce Carter and L.P. Huelsman - sboa093a.pdf - 3.6 Mb

This is a handbook on active RC networks. The first question about this subject that one might ask is, "What is an active RC network?" The answer is simple. It is collection of resistors, capacitors, and an active element (or elements). Viewed in another sense; it is a circuit without inductors. Why leave out inductors? There are many reasons. First of all, the inductor is a relatively large and heavy element. This is especially true at frequencies in the audio range and below.

Saturday, July 09, 2016

John Loomis – Computing and Engineering

Dr. John S. Loomis is the Associate Professor in the Electrical and Computer Engineering Department of The University of Dayton.

John Loomis - Course Web Pages

At the Course pages you can see subjects like Signal Processing, Digital Signal Processing, Analog Microelectronics Design and Electro-Optics.

The Altera DE2 board comes with a Control Panel facility that allows a user to access various components on the board through a USB connection from a host computer.

The DE2 Control Panel can be used to change the values displayed on 7-segment displays, light up LEDs, talk to the PS/2 keyboard, read/write the SRAM, Flash Memory and SDRAM, load an image pattern to display as VGA output, load music to the memory and play music via the audio DAC.

Altera DE2 Board

Altera DE2 Board and Projects with Nios II CPU

"The Altera Development and Education (DE2 ) board from Terasic Technologies Inc. is a wonderful vehicle for learning about digital logic, computer organization, and FPGAs. Featuring an Altera Cyclone II FPGA, the DE2 board offers varied technology suitable for university and college laboratory use, a wide range of design projects, as well as sophisticated digital system development tools."

Also see Microchip PIC32 - PIC32 Architecture and Programming

Friday, July 01, 2016

12-Bit, 4-20mA Loop-Powered System

An Application note and Evaluation Kit from Analog Devices. This solutions helps you evaluate a part of a Process Control or Data Acquisition module that you may wish to design.

"In the circuit, the ADuCM360 is connected to a Type T thermocouple and a 100 Ω platinum resistance temperature detector (RTD). The RTD is used for cold junction compensation. The low power Cortex-M3 core converts the ADC readings to a real temperature value. The Type T temperature range supported is −200°C to +350°C, and this temperature range is converted to an output current range of 4 mA to 20 mA."

12-Bit, 4-20mA Loop-Powered Thermocouple Measurement System

12-Bit, 4-20mA Loop-Powered System

The thermocouple used in this application is a Type T (copper-constantan) that has a temperature range of −200°C to +350°C. Its sensitivity is approximately 40 μV/°C, which means that the ADC in bipolar mode, with a PGA gain of 32, can cover the entire temperature range of the thermocouple.


The RTD was used for cold junction compensation. The particular one used in this circuit was a platinum 100 Ω RTD, Enercorp PCS 1.1503.1. It is available in a 0805, surface-mount package. This RTD has a temperature variation of 0.385 Ω/°C.

Monday, June 06, 2016

Linear Circuit Design Handbook - Hank Zumbahlen

Linear Circuit Design Handbook, edited by Hank Zumbahlen (Newnes, 2008), bridges the gap between circuit component theory and practical circuit design. Effective analog circuit design requires a strong understanding of core linear devices and how they affect analog circuit design.

Linear Circuit Design Handbook – Hank Zumbahlen

This book provides complete coverage of important analog devices and how to use them in designing linear circuits, and serves as a useful learning tool and reference for design engineers involved in analog and mixed-signal design.

Linear Circuit Design Handbook - Hank Zumbahlen

Chapters Include

Sensors, RF/IF Circuits, Converters. Analog Filters. Power Management and …
  • Chapter 5: Fundamentals of Sampled Data Systems
  • Chapter 7: Data Converter Support Circuitry
  • Chapter 11: Overvoltage Effects on Analog Integrated Circuits
  • Chapter 12: Printed Circuit Board (PCB) Design Issues