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HMC174MS8 / 174MS8E
HMC174MS8 / 174MS8E

... SPDT switches in 8-lead MSOP packages for use in transmit-receive applications which require very low distortion at high signal power levels. The device can control signals from DC to 3 GHz and is especially suited for cellular/3G and WiMAX applications with only 0.5 dB loss. The design provides exc ...
SN65LBC182 数据资料 dataSheet 下载
SN65LBC182 数据资料 dataSheet 下载

... both of which operate from a single 5-V power supply. The driver and receiver have active-high and active-low enables, respectively, which can be externally connected together to function as a direction control. ...
差分放大器系列AD8253 数据手册DataSheet 下载
差分放大器系列AD8253 数据手册DataSheet 下载

... for G = 1000. In addition to its wide input common voltage range, it boasts a high common-mode rejection of 100 dB at G = 1000 from dc to 20 kHz. The combination of precision dc performance coupled with high speed capabilities makes the AD8253 an excellent candidate for data acquisition. Furthermore ...
OPA353 OPA2353 OPA4353 High-Speed, Single-Supply, Rail-to-Rail
OPA353 OPA2353 OPA4353 High-Speed, Single-Supply, Rail-to-Rail

... Exposure to absolute maximum conditions for extended periods may degrade device reliability. (2) Input terminals are diode-clamped to the power supply rails. Input signals that can swing more than 0.3V beyond the supply rails should be current-limited to 10mA or less. (3) Short circuit to ground, ...
Crown`s IOC Circuit - HARMAN Professional Solutions
Crown`s IOC Circuit - HARMAN Professional Solutions

Applications To Optical Fiber and Integrated Optics
Applications To Optical Fiber and Integrated Optics

A Slot Harmonic Detection with an Empirical Formula to Extend the
A Slot Harmonic Detection with an Empirical Formula to Extend the

ADS1253 数据资料 dataSheet 下载
ADS1253 数据资料 dataSheet 下载

... The digital filter of the ADS1253, referred to as a sinc5 filter, computes the digital result based on the most recent outputs from the delta-sigma modulator. At the most basic level, the digital filter can be thought of as simply averaging the modulator results in a weighted form and presenting thi ...
Real-Time Dynamic Voltage Scaling for Low
Real-Time Dynamic Voltage Scaling for Low

... tradeoff between these characteristics. For example, given a fixed size or weight for a handheld computation device/platform, one could design a system using a low-speed, low-power processor that provides long battery life, but poor performance, or a system with a (literally) more powerful processor ...
RealTime Dynamic Voltage Scaling for LowPower Embedded Operating Systems
RealTime Dynamic Voltage Scaling for LowPower Embedded Operating Systems

... tradeoff between these characteristics. For example, given a fixed size or weight for a handheld computation device/platform, one could design a system using a low-speed, low-power processor that provides long battery life, but poor performance, or a system with a (literally) more powerful processor ...
Scaling of graphene integrated circuits
Scaling of graphene integrated circuits

... the gate delay. In addition, there are several other components in the total FET resistance which do not depend on W, e.g., resistance of the leads and interconnects, which also lead to a smaller gate delay at smaller W (due to the reduction of gate capacitances). Finally, the larger thickness of th ...
ESP8266 Datasheet
ESP8266 Datasheet

Final Presentation
Final Presentation

... ■ Three proximity sensors (front, left, right) will be used to prevent the ground vehicle from crashing into the walls of the maze. ■ Unlike Infrared sensors, their measurements are not affected by optical reflectivity and color of the target. ...
SN65LVDS108 数据资料 dataSheet 下载
SN65LVDS108 数据资料 dataSheet 下载

... It is only under these conditions that the output of the receiver will be valid with less than a 100 mV differential input voltage magnitude. The presence of the termination resistor, Rt, does not affect the fail-safe function as long as it is connected as shown in Figure 12. Other termination circu ...
5W, Qi Wireless Power Receiver with Integrated Rectifier and LDO
5W, Qi Wireless Power Receiver with Integrated Rectifier and LDO

... communicate to the transmitter the amount of power received by means of a Received Power packet. The transmitter will compare this power with the amount of power transmitted during the same time period. If there is a significant unexplained loss of power, then the transmitter will shut off power del ...
a AN-202 APPLICATION NOTE
a AN-202 APPLICATION NOTE

... Figure 3 illustrates three possible configurations for negative supply decoupling. In 3a, the dotted line shows the negative signal current path through the decoupling and along the ground line. If the load “ground” and decoupled “ground” actually join at the power supply, the “glitch” on the ground ...
S-Pixie QRP Kit
S-Pixie QRP Kit

... components constituting a typical Colpitts oscillator and keeps oscillating (the oscillation signal leaks around 1mW) when receiving the local oscillator signal is directly coupled through a capacitor to 8050. Emission state (the key is pressed), 8050 as a class C amplifier, the amplified signal via ...
MAX7060 280MHz to 450MHz Programmable ASK/FSK Transmitter EVALUATION KIT AVAILABLE
MAX7060 280MHz to 450MHz Programmable ASK/FSK Transmitter EVALUATION KIT AVAILABLE

... ASK/FSK transmitter operates at 280MHz to 450MHz frequencies. This device incorporates a fully integrated fractional-N synthesizer, which allows the user to set the RF operating frequency to a large fraction of the 280MHz to 450MHz frequency range with a single crystal. For example, the MAX7060 can ...
vcodesign paper
vcodesign paper

... other applications. IEEE 802.11a standard uses orthogonal frequency multiplexing (OFDM) based modulation scheme which is more sensitive to phase noise compared with single carrier modulation schemes. Thus, phase noise is probably the most stringent specification for a wireless VCO. To meet the requir ...
S4100
S4100

... When notification appliances are required for applications with more than one function, an appliance with multiple inputs and capable of being programmed shall be used. The notification appliance shall be capable of accepting three (3) individual DC signals and providing three (3) distinct audible s ...
Aalborg Universitet
Aalborg Universitet

AD628 High Common-Mode Voltage Programmable Gain
AD628 High Common-Mode Voltage Programmable Gain

... The AD628 is a high common-mode voltage difference amplifier, combined with a user configurable output amplifier (see Figure 28 and Figure 29). Differential mode voltages in excess of 120 V are accurately scaled by a precision 11:1 voltage divider at the input. A reference voltage input is available ...
ICM7216B,D
ICM7216B,D

1. Introduction - About the journal
1. Introduction - About the journal

... nth-order MF filters based on OTA, but it has not fully balanced structure, too. Current-mode circuits have obvious advantage by comparison with voltage-mode circuits, current-mode circuits have low impedance, they have high speed and large bandwidth, lower nonlinear distortion and wider dynamic ran ...
MAX5180/MAX5183 Dual, 10-Bit, 40MHz, Current/Voltage Simultaneous-Output DACs General Description
MAX5180/MAX5183 Dual, 10-Bit, 40MHz, Current/Voltage Simultaneous-Output DACs General Description

... Dual, 10-Bit, 40MHz, Current/Voltage Simultaneous-Output DACs The MAX5180 contains two 10-bit, simultaneousupdate, current-output digital-to-analog converters (DACs) designed for superior performance in communications systems requiring analog signal reconstruction with low distortion and low-power o ...
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Heterodyne



Heterodyning is a radio signal processing technique invented in 1901 by Canadian inventor-engineer Reginald Fessenden, in which new frequencies are created by combining or mixing two frequencies. Heterodyning is used to shift one frequency range into another, new one, and is also involved in the processes of modulation and demodulation. The two frequencies are combined in a nonlinear signal-processing device such as a vacuum tube, transistor, or diode, usually called a mixer. In the most common application, two signals at frequencies f1 and f2 are mixed, creating two new signals, one at the sum f1 + f2 of the two frequencies, and the other at the difference f1 − f2. These new frequencies are called heterodynes. Typically only one of the new frequencies is desired, and the other signal is filtered out of the output of the mixer. Heterodynes are related to the phenomenon of ""beats"" in acoustics.A major application of the heterodyne process is in the superheterodyne radio receiver circuit, which is used in virtually all modern radio receivers.
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