Data Based Voltage Controlled Amplifier


Posted on Feb 5, 2014    9811

The VCA project illustrates the use of the VCA_Setup and VCA_Data components in ADS. These components are part of the ADS behavioral model suite found under the System - Data Models palette. `Amp_wBothMatches_setup. dsn` is a schematic for extraction of circuit level information for `Amp_wBothMatches_subnet. dsn. ` The result is in the dataset `Amp_wBothMatches_setup.


Data Based Voltage Controlled Amplifier
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ds" which will be used by VCA_Data for behavioral level simulations. "Amp_wBothMatches_circuit_1tone. dsn" is a schematic for a circuit level 1-tone swept control voltage and swept input power harmonic balance simulation of "Amp_wBothMatches_subnet. dsn. " The result is in the dataset "Amp_wBothMatches_circuit_1tone. ds. " "Amp_wBothMatches_behavioral_1tone. dsn" is a schematic for a behavioral level 1-tone swept control voltage and swept input power harmonic balance simulation of "Amp_wBothMatches_subnet. dsn" using VCA_Data along with the dataset "Amp_wBothMatches_setup. ds. " The result is in the dataset "Amp_wBothMatches_behavioral_1tone. ds. " "Amp_wBothMatches_circuit_env. dsn" is a schematic for a circuit level circuit envelope simulation of "Amp_wBothMatches_subnet. dsn. " The result is in the dataset "Amp_wBothMatches_circuit_env. ds. " "Amp_wBothMatches_behavioral_env. dsn" is a schematic for a behavioral level circuit envelope simulation of "Amp_wBothMatches_subnet. dsn" using VCA_Data along with the dataset "Amp_wBothMatches_setup. ds. " The result is in the dataset "Amp_wBothMatches_behavioral_env. ds. " In Figure 1, a comparison of circuit and behavioral level results is given for Harmonic Balance simulation. The sampling for VCA_Setup is 2 V, 4 V and 6 V, a 2 V spacing. The deviation for Vcontrol = 3 V illustrates the effect of improper sampling for VCA_Setup. Sampling at 2 V and 4 V is simply too coarse to properly capture the response at 3 V.

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