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2001-06-19 What is characteristic impedance?
This application note describes a simple and intuitive explanation of characteristic impedance, the most fundamental quality of a transmission line.
2006-09-18 Use LVDS to overcome impedance discontinuities
High-speed interfaces across backplanes require impedance control along the entire signal path. Using simple LVDS buffers to isolate impedance discontinuities or to shorten interconnect lengths can reduce system costs and enhance the interface performance by eliminating the need for expensive high-frequency connectors.
2008-03-04 Ultra-low-cost, medium impedance RF probe is rugged and wideband
This application note describes how simple it is to construct a rugged, low-cost RF probe in the lab.
2009-06-01 TS613 as driver for ADSL line interface - a single supply implementation with passive or active impedance matching
ADSL is a new modem technology that converts the existing twisted-pair telephone lines into access paths for multimedia and high-speed data communications. ADSL transmits more than 8Mbit/s to a subscriber, and can reach 1Mbps from the subscriber to the central office.
2009-06-02 TS612 as driver for ADSL line interfacesa single supply implementation with passive or active impedance matching
ADSL is a new modem technology that converts the existing twisted-pair telephone lines into access paths for multimedia and high-speed data communications.
2007-05-04 Theory and implementation of Impedance Track battery fuel-gauging algorithm in bq20zxx product family
This application report outlines the theory of Impedance Track (IT) technology that overcomes these problems. Implementing the IT algorithm in the Texas Instruments bq20z8x family is reviewed and setting the data flash constants associated with the fuel-gauging algorithm is described in detail.
2002-01-10 Tecate aluminum electrolytic capacitors exhibit low impedance at 100kHz
The MXZZ series surface-mount aluminum electrolytic capacitors feature very low impedance and high ripple current at 100kHz.
2008-06-25 TDR impedance measurements: A foundation for signal integrity
In this Tektronix application note, the methodology of choice for measuring impedances is time domain reflectometry (TDR), carried out using high-performance instruments such as the TDS8000 oscilloscope equipped with the 80E04 TDR sampling module.
2003-10-24 Taizhou Kangjia tuner has 75 ohms impedance
Applicable to NTSC-M systems, the 113-241C tuner module from Taizhou Kangjia Electronic features receiving frequencies of 0.05525MHz to 0.16925MHz (VHF-L).
2007-05-04 Support of multiple Li-ion chemistries with Impedance Track gas gauges
This application report describes the process of selecting the correct chemistry open-circuit voltage table for a particular cell and the method of correctly programming this information during production.
2008-09-15 Single-Cell Impedance Track gas gauge for novices
This application report introduces the bq27350 Impedance Track gas gauge solution.
2006-05-16 Sensor monitors battery's temperature, float charge, impedance
LEM's Sentinel, the transducer company's first active sensor product specifically for VRLA (lead-acid) battery monitoring, measures temperature, float charge and the impedance per cell.
2009-01-26 PXI digitizers offer high-impedance mezzanine
Agilent Technologies Inc. has expanded its Acqiris high-speed digitizer product line with extended functionality on its PXI digitizers.
2013-02-13 Perform audio line receiver impedance balancing
When the design specification for a line receiver requires high performance, an impedance-balanced input or predictable gain, the cross-coupled double-balanced configuration is a worthy contender.
2002-12-23 PCB package adds impedance routing, simulation
Altium Ltd. has added impedance-controlled routing, VHDL simulation, and synthesis for its PCB design tool.
2009-02-24 Optimizing impedance discontinuity caused by surface mount pads for high-speed channel designs
This application note examines the discontinuities from the DC blocking capacitors and SMA connectors in detail, and provides optimization techniques to minimize their adverse effects in the channel.
2011-02-14 Module automates impedance matching
AWR Corp. unveils an automated impedance matching module, iMatch that is a submodule of iFilter and works with the company's Microwave Office design platform.
2002-07-29 Microsemi CPW photodiodes feature impedance of 50 ohms
Two families of CPW photodiode ICs from Microsemi Corp. are designed for use in 1/10 GbE, Fibre Channel, Infiniband, VCSEL, and OC-48 and OC-192 SONET/SDH systems.
2004-08-02 Measuring impedance in disk drive circuits
By performing a virtual TDR, impedance variations with different trace and stack-up dimensions can be studied.
2007-04-17 Measuring a grounded impedance profile using the AD5933
ADI's AD5933 is a high-precision impedance converter system that combines an on-board frequency generator with a 12bit, 1MSps ADC.
2001-04-24 MAX3752 impedance-matching experiments
This application note is intended to present the results of experiments that were performed in Maxim's MAX3752 quad-port bypass chip in order to determine the relative merits of various impedance matching and line termination configurations.
2003-05-07 Matsushita aluminum electrolytic caps boast low impedance
The FM series of aluminum electrolytic capacitors from Matsushita Electronic Components Co. Ltd exhibits an impedance range between 38 milliohms to 560 milliohms.
2009-01-29 Low-impedance capacitors handle up to 125C
Vishay Intertechnology has developed a new series of radial aluminum capacitors that offers very low impedance values, high capacitances, high ripple currents, and high-temperature operation up to +125C.
2003-08-05 Lipers chip beads have 1-kiloohm rated impedance
Lipers Enterprise has released the LBA series of array-type chip beads with an impedance rating running to 1 kiloohms.
2003-12-09 Landersound drivers with 4, 8 ohms impedance
Landersound Ind. Co. Ltd has released its PTQ-13, PTQ-14, PTQ-15, PTQ-16, PTQ-17, PTQ-18 and PTQ-19 piezo tweeter drivers that are suitable for multimedia applications, and feature 4 ohms or 8 ohms impedance. The PTQ-13 and PTQ-14 have a frequency range of 3.5Hz to 20kHz, sensitivity of 93dB (1W/1M), and maximum power rms of 75W or 150W. The
2003-09-02 Jiakang ceramic resonators have 40 ohms rated impedance
The ZTACS and ZTTCS series of chip-type ceramic resonators from Zhejiang Jiakang Electronics Co. Ltd feature a frequency range of 8MHz to 60MHz.
2006-05-16 JFET op amp achieves high input impedance
New Japan Radio announced a JFET input operational amplifier.
2002-05-07 Impedance measurement: Practical construction of the connector
This application note describes the connection construction used for the champion impedance plug-in.
2015-12-18 How to increase range in 2-port impedance measurements
Given their high DC gain, it is quite a challenge to measure the output impedance of wideband op amps. Learn how to overcome this problem with some simple techniques.
2010-02-05 How to generate golden image for single-cell impedance track devices
This application report describes the necessary process of configuring, calibrating, selecting chemistry and performing learning cycles for generating golden image for single-cell impedance track devices.
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