Digital radio transmitter

Abstract

There is provided a digital radio transmitter capable of meeting a legal standard even if unwanted emissions resulting from a switching frequency of a switching power supply occur in transmission waves. The digital radio transmitter includes: a switching power supply that determines a switching frequency by a synchronization signal of an oscillator; a data readout/transfer circuit that determines a transfer timing frequency of baseband data based on the synchronization signal of the oscillator; and a power amplifier using, as a VCC power source, voltage output from the switching power supply.

Dependencies are inferred from the claim text.