Example For Use - Toshiba TXZ Family Reference Manual

3.3. Example for use

The table below shows an example of detection voltage setting when the input signal voltage is about 0V in
normal condition and 1.5V when abnormality is detected.
Condition: DVDD5A=DVDD5B=AVDD5=5V, DVSSA=DVSSB=AVSS=0V
DAC: VREFH=5V,VREFL=0V, DAC accuracy ±1LSB
Reference
voltage(V)
0.5
0.8
1.0
Formula of detecting voltage:
V(Max)= (DAC channel 0 setting voltage)+19.8mV+5mV
V(Min)= (DAC channel 0 setting voltage)-19.8mV-22mV
2017-10-11
Table 3.1 Setting example (Calculation value)
DAC channel 0 setting value
<DAC[7:0]> Voltage(V)
00011010 0.508
00101001 0.801
00110100 1.016
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Detection voltage
Min(V) Max(V)
0.466 0.533
0.759 0.826
0.974 1.040
TXZ Family
Comparator
Rev. 1.0