Clock signal generation circuit, detection device, sensor, electronic apparatus, and moving object
US9391595B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2014 |
| Grant date | Jul 12, 2016 |
| Priority date | — |
| Expiry date | Nov 25, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K3/011
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A clock signal generation circuit includes a CR oscillator circuit having a capacitor, a resistor, and an amplifier circuit, and a voltage generation circuit adapted to generate a power supply voltage, and then supply the CR oscillator circuit 170 with the power supply voltage VDOS. An oscillation frequency of the CR oscillator circuit in a case in which a power supply voltage VDDL is a fixed voltage has a positive temperature characteristic. The voltage generation circuit generates the power supply voltage VDOS having a negative temperature characteristic based on a work function difference between transistors, and then supplies the power supply voltage VDOS as a power of the amplifier circuit of the CR oscillator circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.