SN32F760 Series
32-Bit Cortex-M0 Micro-Controller
SONiX TECHNOLOGY CO., LTD
Page 93
Version 2.0
These capacitors are set between AVREFH pin and VSS pin, and must be on the side of the AVREFH pin as possible.
Don’t connect the capacitor’s ground pin to ground plain directly, and must be through VSS pin.
7.5 TEMPERATURE SENSOR (TS)
In applications, sensor characteristic might change in different temperature also. To get the temperature information, a
temperature senor (TS) is built-in for temperature measurement, and is internally connected to the AIN14 input channel
which is used to convert the sensor output voltage into a digital value.
If TSENB = 1, the temperature sensor is enabled. When not in use, this sensor can be put in power down mode if
TSENB = 0.
Note: The Temperature Sensor was just a reference data not real air temperature. For precision
application, please use external thermistor sensor.
In 25C, V(TS) will be about 1V typically, and if the temperature rises 10
℃
, V(TS) will increase about 35mV (V
TS
=1.035V); if the temperature drops 10
℃
, V(TS) will decrease about 35mV (V
TS
=0.965V).
Example:
Temperature
V(TS)
AVrefH
ADC output (12-Bit)
15
℃
0.965
3.0V
1250
25
℃
1.000V
3.0V
1306
35
℃
1.035V
3.0V
1352
By ADC output of V(TS), can get temperature information and compensation the system.
Note:
1. The V(TS) voltage and temperature curve of each chip might different. Calibration in room
temperature is necessary when temperature sensor is used.
2. 3.53mV/
℃
is only the typical temperature parameter, every single chip is different to each other.
