SYSTEM-ON-CHIP INCLUDING TIME DIFFERENCE ADDER, SYSTEM-ON-CHIP INCLUDING TIME DIFFERENCE ACCUMULATOR, SIGMA-DELTA TIME DIGITAL CONVERTER, DIGITAL PHASE-LOCKED LOOP, TEMPERATURE SENSOR, AND SYSTEM-ON-CHIP

摘要

PROBLEM TO BE SOLVED: To provide a system-on-chip including a time difference adder for adding the time difference between input signals.

SOLUTION: A time difference adder 100 generates a first output signal SOUT1 and a second output signal SOUT2 in response to a first input signal SIN1, a second input signal SIN2, a third input signal SIN3, and a fourth input signal SIN4. The time difference adder 100 adds a first time difference TD1 between the first input signal SIN1 and the second input signal SIN2 and a second time difference TD2 between the third input signal SIN3 and the fourth input signal SIN4, thereby outputting the first output signal SOUT1 and the second output signal SOUT2 having a time difference (TD1+TD2) corresponding to the sum of the first time difference TD1 and the second time difference TD2. Thus, signal processing can be performed in a time domain under a low power supply voltage environment, and the performance can be improved.

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