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fvco VREF
fvco VREF

... more precisely control VCONT during a second mode to achieve ?ne lock of the PLL circuit. During the ?rst mode, the VCO frequency fVCO is used to control the variation of the VCO control voltageVCONTuntil coarse lock is achieved. The VCO frequency fVCO is signi?cantly higher than the reference frequ ...
Optimize Your SAR ADC Design - TI E2E Community
Optimize Your SAR ADC Design - TI E2E Community

DC/AC Fundamentals: A Systems Approach
DC/AC Fundamentals: A Systems Approach

ee2019 analog systems lab - EE@IITM
ee2019 analog systems lab - EE@IITM

... Figure 2-7 Fist order opamp-RC filter as type-1 compensator ............................................................. 11 Figure 2-8 Opamp-RC integrator as type-1 compensator..................................................................... 11 Figure 2-9 Opamp-RC integrator as type-1 compensat ...
Fourth Year Engineering Project Final Report Noah Moser i Project
Fourth Year Engineering Project Final Report Noah Moser i Project

Single-Time-Constant Circuits
Single-Time-Constant Circuits

Design of a 5.8 GHz Multi-Modulus Prescaler - Til Daim
Design of a 5.8 GHz Multi-Modulus Prescaler - Til Daim

... By cascading two or more dual-modulus prescalers one can obtain a multimodulus prescaler. An example of how that can be done is shown below. The circuit in g. 2.7 consists of two of the ÷2/3 circuits described above coupled in series. The modulus control signals are binary weighted, so the period o ...
LME49725 数据资料 dataSheet 下载
LME49725 数据资料 dataSheet 下载

... Combining advanced leading-edge process technology with state-of-the-art circuit design, the LME49725 audio operational amplifiers deliver superior audio signal amplification for outstanding audio performance. The LME49725 combines extremely low voltage noise density (3.3nV/√Hz) with vanishingly low ...
Review of ITU-R activities/RNSS issues
Review of ITU-R activities/RNSS issues

... measured within a bandwidth of 650 kHz, and the variation in performance of a DME between CW signals and the RNSS signals was determined for a number of different DME designs and a number of DMEs of the same type. These DMEs were of type designed for large commercial airline and smaller commercial a ...
ELEC 360: Signals and Systems - UCO
ELEC 360: Signals and Systems - UCO

IN-1 : 2013 GATE Questions
IN-1 : 2013 GATE Questions

... Three capacitors C1, C2 and C3 whose values are μF, μF, and μF respectively, have breakdown voltages of 10V, 5V and 2V respectively. For the interconnection shown below , the maximum safe voltage in Volts that can be applied across the combination, and the corresponding total charge in μ stored in t ...
ETSI TR 103 053 V1.1.1
ETSI TR 103 053 V1.1.1

... NOTE 3: Analogue systems are no longer implemented; therefore, for the purpose of the present document only digital applications are identified as DFRS. essential phenomenon: radio frequency phenomenon related to the essential requirements under article 3.2 of the R&TTE Directive [i.3] that is capab ...
TPA3002D2 数据资料 dataSheet 下载
TPA3002D2 数据资料 dataSheet 下载

... are enabled. Variable outputs (VAROUTL and VAROUTR) are still enabled in Class-D mode to be used as line-level outputs for external amplifiers. ...
Conference HM 4042 Microphones HM 4047
Conference HM 4042 Microphones HM 4047

MAX8729 Constant-Frequency, Half-Bridge CCFL Inverter Controller General Description
MAX8729 Constant-Frequency, Half-Bridge CCFL Inverter Controller General Description

... using the half-bridge inverter consisting of two external n-channel power MOSFETs. The half-bridge topology minimizes the component count, while providing near sinusoidal drive waveforms. The MAX8729 operates in resonant mode during striking and switches over to constant-frequency operation after al ...
chapter 09 Phase
chapter 09 Phase

ADF5355 - Analog Devices
ADF5355 - Analog Devices

... integer-N phase-locked loop (PLL) frequency synthesizers when used with an external loop filter and an external reference frequency. The wideband microwave VCO design permits frequency operation from 6.8 GHz to 13.6 GHz at one radio frequency (RF) output. A series of frequency dividers at another fr ...
Si5345/44/42 - Silicon Labs
Si5345/44/42 - Silicon Labs

... These jitter attenuating clock multipliers combine fourth-generation DSPLL and MultiSynth™ technologies to enable any-frequency clock generation and jitter attenuation for applications requiring the highest level of jitter performance. These devices are programmable via a serial interface with in-ci ...
Oscilloscopes and their Calibration
Oscilloscopes and their Calibration

... liquid crystal displays (LCDs), are typically calibrated using a DC stimulus, with some models utilizing the consecutive application of a zero-centered, ±DC signal for gain calibration, where others prefer a zerostarting +DC signal alone. Generally speaking, calibration of vertical gain begins with ...
A Simulink-Driven Dynamic Signal Analyzer
A Simulink-Driven Dynamic Signal Analyzer

... Students should still become familiar with the process of collecting such data ’by hand’. This can be done by (1) using a sine wave output from a function generator to excite a system, (2) recording the requisite gain and phase shift between two system locations from an oscilliscope, once the transi ...
Improved high-voltage resonant controller
Improved high-voltage resonant controller

... The IC enables the designer to set the operating frequency range of the converter by means of an externally programmable oscillator. At startup, to prevent uncontrolled inrush current, the switching frequency starts from a programmable maximum value and progressively decays until it reaches the stea ...
Microwave Amplifiers Design Peter Kijanga
Microwave Amplifiers Design Peter Kijanga

... external matching circuits and Monolithic Microwave Integrated Circuit (MMIC) amplifier. First step in this project was to select radio frequency transistor suitable for specified design targets. Design process was done by AWR microwave office software tool. The AWR microwave office was used to chec ...
1. Study of OP AMPs - IC 741, IC 555, IC 565, IC 566, IC 1496
1. Study of OP AMPs - IC 741, IC 555, IC 565, IC 566, IC 1496

... make the comparator (inside the IC) change its state. However the width of the negative going pulse must not be greater than the width of the expected output pulse. Pin (3) is the output terminal of IC 555. There are 2 possible output states. In the low output state, the output resistance appearing ...
ADS5413 数据资料 dataSheet 下载
ADS5413 数据资料 dataSheet 下载

... The analog input for the ADS5413 consists of a differential track-and-hold amplifier implemented using a switched capacitor technique, shown in Figure 27. This differential input topology, along with closely matched capacitors, produces a high level of ac-performance up to high sampling and input fr ...
a low power low noise instrumentation amplifier
a low power low noise instrumentation amplifier

... The instrumentation amplifier (IA) is one of the crucial blocks in an electrocardiogram recording system. It is the first block in the analog front-end chain that processes the ECG signal from the human body and thus it defines some of the most important specifications of the ECG system like the noi ...
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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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