Patent ID: 11870394
Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. The demodulator according to claim 7, wherein
the frequency variable oscillator includes a first input section and a second input section, the first input section being an input section for the first control signal that includes a variable capacitive element, and the second input section being an input section for the second control signal that is coupled in parallel to the first input section,
the second input section has a configuration in which at least a same number of signal input sections as a bit number of the second control signal are coupled in parallel to each other, the signal input sections each including a capacitive element having a fixed capacitance, and
a resolution of the low-resolution A/D converter is set to a resolution that allows for generation of the first control signal having an amplitude falling within a linear region of input amplitude-frequency characteristics of the variable capacitive element.