Discrete Filter Notes (PDF 36p)
The objective of this section will be to show how to use the first- and second-order filters to achieve higher order filters. We shall also introduce a general, second-order stage called the biquad.
Discrete Filter Notes (PDF 30p)
The other approach uses a ladder configuration and is presented in this section. Both approaches are used to design successful higher-order active filters. The cascade approach is easier to design and tune but does not have the insensitivity to component variation found in the ladder approach.
Fundamental IC Noise paper (PDF)
Most people find the subject of noise mysterious, and there is, under- standably, much confusion about it. Although the fundamental physical concepts behind noise are simple. much of this simplicity is often obscured by the mathematics invoked to compute expressions for the noise.
Paralleling Of Power MOSFETs For Higher Power Output (PDF 30p)
Dynamic current and transition energy unbalance resulting from parameter mismatch between parallel
MOSFET branches are mapped over wide operating ranges. Unbalance generator magnitudes are given for HEXFET
Power MOSFET data sheet ant typical production batch extremes.
Digital Modulation in Communications Systems An Introduction (PDF 48p)
Most communications systems fall into one of three categories: bandwidth efficient, power efficient, or cost efficient. Bandwidth efficiency describes
the ability of a modulation scheme to accommodate data within a limited bandwidth.
Communication Systems Engineering
This course will cover fundamentals of digital communications and networking. We will study the basics of information theory, sampling and quantization, coding, modulation, signal detection and system performance in the presence of noise. The study of data networking will include multiple access, reliable packet transmission, routing and protocols of the internet.
Electromagnetic Communication Lecture Notes
The decoding of DSB-AM signals involves the least complexity, but the redundancy of the information carried by the two sidebands implies an inherent inefficiency in terms of both radiated power and frequency space
utilization.
Communication Systems and Technology Lecture Notes
Notes on Communication Systems and Technology.
LM311 Voltage Comparator (PDF)
The LM111, LM211 and LM311 are voltage comparators that have input currents nearly a thousand times lower than devices like the LM106 or LM710. They are also designed to
operate over a wider range of supply voltages: from standard �15V op amp supplies down to the single 5V supply used for IC logic.
A DIODE CIRCUIT WITH A FREE-WHEELING DIODE
The circuit shown above differs from the circuit described in the previous page, which had only one diode, labelled D1. This circuit has another diode, marked D2 in the circuit shown above. This diode is called the free-wheeling diode. The circuit operation is described next. The explanation is based on the assumption that the reader knows how the circuit without a free-wheeling diode operates.
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