IEEE_RFIC 2007 (2)
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This document describes a temperature compensated 2.45 GHz ring oscillator circuit with double frequency control. The circuit uses a double control technique that independently controls voltage and current to improve temperature compensation. Experimental results show the temperature drift is reduced from 1291 ppm/°C to 73 ppm/°C without degrading other performance metrics like phase noise, frequency range, and power consumption. The double control technique provides an effective and low-cost solution for temperature compensation in wireless communication applications.
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Review
Okay, here are the steps to find the velocity of the rocket at t = 10s:
1) Take the derivative of the position function x(t) to get the velocity function v(t):
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2) Plug t = 10s into the velocity function:
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Okay, here are the steps to find the velocity of the rocket at t = 10s:
1) Take the derivative of the position function x(t) to get the velocity function v(t):
v(t) = 4 + 14t + 15t^2 - 1.4t^3
2) Plug t = 10s into the velocity function:
v(10) = 4 + 140 + 1500 - 140 = 1404 m/s
So the velocity of the rocket at t = 10s is 1404 m/s.
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- Good morning, I am happy to present you this work, titled …. This study is performed within the L2MP and the society STMicroelectronics… As we know, VCO is one of the key elements of transceiver chain, and its performance may be a determinant parameter for the feasibility of different function such as clock generation, frequency synthesizer or frequency modulation. Depending on the applications, the required performances are: Spectral purity, low phase noise, low process and temperature drift, low power consumption and so on. Our interest concern the temperature stability by the way of Double frequency control