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IC design of low power, wide tuning range VCO in 90 nm CMOS
IC design of low power, wide tuning range VCO in 90 nm CMOS

... Recently, there has been growing interest in high frequency wireless communication systems promoted by the ever increasing bandwidth requirement from the emerging low power smart devices. An increased demand for multi-band and multi-standard radio-frequency (RF) systems requires a voltage controlled ...
Capacitor Self
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... 3. When using an equation, write it out first in analytical form (Ex.: R p = R1R2/(R1 + R2)) and then substitute the data. 4. Sketch a circuit diagram neatly and label the component values. 5. Sketch an experimental diagram and label the equipment used. 6. Comment on the agreement or lack of agreeme ...
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... The IF limiter has 84dB small-signal gain with a frequency range of 70MHz to 400MHz. It consists of two cascaded stages of IF amplifiers/limiters. The differential outputs of the first stage are connected internally to the differential inputs of the second stage. An interstage filtering is possible ...
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... includes stereo digital-to-analog converters and support circuitry in a small 28-lead SSOP package. The data converters use TI’s advanced segment DAC architecture to achieve excellent dynamic performance and improved tolerance to clock jitter. The PCM1798 provides balanced current outputs, allowing ...
Feedback compensation design for switched mode power supplies
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... circuit to compensate the undesirable characteristics of a power stage. The desired result is an open loop transfer function that has high gain and reasonably high bandwidth, and that does not violate Nyquist's stability criterion. Due to its graphical nature and simplicity, this design method has b ...
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... The complete circuit schematic for the analog part of this project is shown in Figure 4.1 (next page), with the signal extractor circuit contained in Figure 4.1a, and the Zero Crossing Detector (ZCD) and Power Supply stages drawn in Figures 4.1b and 4.1c respectively. The ZCD was separated because i ...
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... capacitor on each supply terminal. It may be possible to share the tantalum among several amplifiers depending on the application, but a 0.1-µF ceramic capacitor should always be used on the supply terminal of every amplifier. In addition, the 0.1-µF capacitor should be placed as close as possible t ...
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... sources of light must be coherent - the light waves must have equal frequencies and unchanging phase difference over time. As the laser light is monochromatic light with specific frequency it can be used to obtain interference patterns, whereas, for example, the light from incandescent light bulb co ...
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... LTE/TD-LTE, cdma2000®, and DCS/PCS base-station applications. Direct conversion architectures are advantageous since they significantly reduce transmitter or receiver cost, part count, and power consumption as compared to traditional IF-based double conversion systems. In addition to offering excell ...
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... under charge transfer condition. However, the former is about 100 to 300 times that of the latter under mixed control condition. This confirms that the square of harmonic currents ji2 are linearly dependent on the square of frequency, ω2 in charge transfer condition as in equation 12, but not on the ...
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... 3. When using an equation, write it out first in analytical form (Ex.: R p = R1R2/(R1 + R2)) and then substitute the data. 4. Sketch a circuit diagram neatly and label the component values. 5. Sketch an experimental diagram and label the equipment used. 6. Comment on the agreement or lack of agreeme ...
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... Analog Inputs for the Voltage Channels. These channels are intended for use with voltage transducers and are referenced in this document as voltage channels. These inputs are single-ended voltage inputs with a maximum signal level of ±0.5 V with respect to VN for specified operation. All inputs have ...
Synthesis of Voltage-Mode All-pass Filter Employing Single Current
Synthesis of Voltage-Mode All-pass Filter Employing Single Current

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Superheterodyne receiver



In electronics, a superheterodyne receiver (often shortened to superhet) uses frequency mixing to convert a received signal to a fixed intermediate frequency (IF) which can be more conveniently processed than the original radio carrier frequency. It was invented by US engineer Edwin Armstrong in 1918 during World War I. Virtually all modern radio receivers use the superheterodyne principle. At the cost of an extra frequency converter stage, the superheterodyne receiver provides superior selectivity and sensitivity compared with simpler designs.
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