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Making RF-to-Baseband Noise Figure Measurements
 


Making RF-to-Baseband Noise Figure Measurements
Article Reprint: Evaluation Engineering, January 2008 
 
Demystifying production test of UWB devices
Article Reprint: Test and Measurement World, January 2008 
 

Press Releases

Verigy to Present at the Morgan Stanley Technology, Media & Telecom Conference
CUPERTINO, Calif. – Feb. 18, 2010 – Verigy (NASDAQ: VRGY), a premier semiconductor test company, today announced that Judy Davies, Verigy’s vice president of investor relations and marketing communications, will present to the investment community attending the Morgan Stanley Technology, Media & Telecom Conference at the Palace Hotel in San Francisco on Thursday, March 4, 2010 at 9:30 a.m. PT. 
 
Verigy to Present at Goldman Sachs Technology and Internet Conference 2010
CUPERTINO, Calif. – Feb. 11, 2010 – Verigy (NASDAQ: VRGY), a premier semiconductor test company, today announced that Bob Nikl, Verigy’s chief financial officer, and Judy Davies, Verigy’s vice president of investor relations and marketing communications, will present to the investment community attending the Goldman Sachs Technology and Internet Conference at the Westin St. Francis Hotel in San Francisco on Thursday, February 25, 2010 at 10:20 a.m. PT. 
 
Verigy Announces First Quarter Fiscal Year 2010 Earnings Release Date and Conference Call
CUPERTINO, Calif., Feb. 4, 2010 – Verigy Ltd. (NASDAQ: VRGY) will release its first quarter fiscal year 2010 financial results after the stock market close on Tues., Feb. 23, 2010. The company will host a live webcast of its earnings conference call in listen-only mode. 
 

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Feature Stories

Technical Note - Centering Pulse Waveform
In a settling time measurement, rise/fall time calculation, and tests known as template fitting test, samplers are used to record waveforms. The test signal waveform in such applications is usually a clock signal with 50% duty ratio. You may want to shift this waveform in the unit test period window to a position so you can analyze and parameterize it. This technical note describes how to shift ("center") your waveform to any desired phase. 
 
Question: "Why does my Total Harmonic Distortion result look poor?"
The THD result of an ADC is bad. I expected -58 dB THD of 1 MHz signal at 10 MHz bandwidth but it only has -41 dB. What is wrong?  
 
Mixed-signal Lecture Series: DSP-Based Testing Fundamentals 4 - Multi-tone Data Generation
Multi-tone is a popular stimulus signal in mixed signal tests. By using a multi-tone you can capture gain and phase information at multiple frequency points with a single measurement so that it is very effective in frequency response analyses. As discussed in the last newsletter, when a multi-tone is programmed and generated by a DAC, it has a gain shaping of SINC function. In this issue, let’s look at the waveform and think of the point of appropriate multi-tone signal generation. 
 

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