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CSG14K_CSG8K 数据表(PDF) 101 Page - OSRAM GmbH |
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CSG14K_CSG8K 数据表(HTML) 101 Page - OSRAM GmbH |
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101 / 114 page ![]() Document Feedback CSG14K_CSG8K Functional Description Datasheet • PUBLIC DS000571 • v2-01 • 2023-Feb-10 113 │ 100 Uncalibrated Temperature Measurement To perform an uncalibrated temperature measurement, with an accuracy of ±5 °C, follow this procedure: 1. Set TSENS_CONTROL to 1 (power-up temperature sensor) 2. Wait for 100 µs 3. Set TSENS_CONTROL to 31 4. Wait for 10 µs 5. Set TSENS_CONTROL to 27 6. Wait for 1 µs 7. Set TSENS_CONTROL to 11 8. Wait for 1 µs 9. Set TSENS_CONTROL to 9 10. Wait for 1 µs 11. Set TSENS_CONTROL to 33 12. Wait for 200 µs 13. Read TSENS_REF and TSENS_CONV 14. Calculate the uncalibrated temperature with the equation Equation 17: ������ [°������] = 425 × ������������������������������_������������������������ ������������������������������_������������������ − 273.15 15. To start a new measurement, go back to step 3 16. To power down the temperature sensor, set TSENS_CONTROL to 0 Information The temperature measurement uses the internal clock. This means that the sensor must have followed the flow chart in section 7.4.3 until atleast the soft reset release step before a temperature measurement can be started. Calibrated Temperature Measurement The accuracy of temperature measurements can be improved to ±1 °C after performing a single-point calibration. During wafer test, temperature is measured in a controlled environment. Calibration data is written to the OTP memory of the sensor. In section 7.8.5 we described how to read out data from OTP fuses. |
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