TEMPERATURE DETECTION DEVICE, INFORMATION PROCESSING EQUIPMENT AND METHOD FOR CONTROLLING TEMPERATURE DETECTION DEVICE

摘要

A clock signal (VOSCTEMP) is generated by controlling a first oscillation unit (13_1) at a temperature-dependent voltage (VREF1), and a clock signal (VOSCREF) is generated by controlling a second oscillation unit (13_2) at a temperature-independent voltage (VREF2).  A frequency division unit (14) frequency-divides the clock signal (VOSCTEMP) to obtain a clock signal (VCOUNT).  A counting unit (15) compares the clock signal (VCOUNT) and the clock signal (VOSCREF) to obtain temperature information.  The temperature detection resolution can be changed by changing the radio of frequency division by the frequency division unit (14).