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US 10,256,781 B2Granted
Complementary metal oxide silicon transceiver having integrated power amplifier
AssigneeFci
InventorsDong Hyun Ko, Min Chul Kang, Myung Woon Hwang
Life of this patent
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Abstract
A complementary metal oxide silicon transceiver having an integrated power amplifier is provided. The complementary metal oxide silicon transceiver having the integrated power amplifier is capable of controlling an output power according to a communication environment to solve the following problem that with the increment of an output level of a power amplifier, performance is decreased when noises flow into other blocks of a transceiver with power and thus are inputted to the power amplifier.
Claims14
A transmitter, comprising:
- a power supply part configured to output a direct current to direct current voltage or a battery voltage;
- a mixer configured to receive differential input signals from a local oscillator via in-phase input terminals and quadrature input terminals, and configured to output a frequency mixed signal after up mixing frequencies of the differential input signals;
- a driver amplifier connected to output terminals of the mixer, configured to receive the frequency mixed signal, configured to receive the direct current to direct current voltage or the battery voltage, configured to amplify the frequency mixed signal, and configured to output a drive signal, wherein the direct current to direct current voltage or the battery voltage serves as a power source of the driver amplifier;
- and
- a power amplifier comprising a first power an amplifier and a second power amplifier which are connected to output terminals of the driver amplifier, configured to receive the direct current to direct current voltage of the battery voltage, configured to amplify the drive signal inputted to the first power amplifier and the second power amplifier, and configured to output a power signal in a balanced unbalanced (Balun) type, wherein the direct current to direct current voltage or the battery voltage serves a power source of the power amplifier.
2 more elements
Dependencies are inferred from the claim text.