Find out how a digital technique performs multiplication on two bitstreams and avoids the cost of the analog multiplier.
A delta-sigma converter uses many samples from the modulator to produce a stream of 1-bit codes. The delta-sigma ADC accomplishes this task by using an input-signal quantizer running at a high sample ...
The transition from second-generation (2G) to third-generation (3G) wireless cellular systems requires multi-standard adaptability in a wireless receiver. An important answer to this request is the ...
All engineers have spreadsheets on their computer and know how to use them. The input is just a column of data, and the output is plotted. Pulse density modulation is just the analog portion of a ...
In part one, I compared the different Analog to Digital Converters (ADC) and the roles and properties of Delta Sigma ADC’s. I covered a lot of the theory behind these devices, so in this installment, ...
AD7403 isolated sigma-delta modulator achieves industry’s highest accuracy current and voltage measurement. NORWOOD, Mass.--(BUSINESS WIRE)--Analog Devices, Inc. (NASDAQ: ADI) introduced today the ...
A quadrature modulator from Linear Technology is optimised for direct conversion from baseband to the 850-965MHz frequency band for GSM, EDGE, CDMA2000 basestations and 900MHz RFID readers. The LT5558 ...
A look at the Nyquist sampling theorem. How to deal with aliasing by attenuating signals using low-pass filters (i.e., an antialiasing filter, or AAF). AAF requirements for different ADCs. A deep dive ...
How to optimise digital modulation accuracy in an IQ modulator? Bruce Hemp and Peter Stroet from Linear Technology describe how a vector signal analyser helps ...
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