The measurement of 3868 chip can be carried out according to the following steps:
1. Prepare test equipment: First of all, prepare a reliable test equipment, such as oscilloscope, multimeter and logic analyzer. Make sure these devices are properly connected and communicate with the 3868 chip.
2. Check the power supply voltage: Connect chip 3868 to the power supply, and use a multimeter to measure the power supply voltage. Make sure the chip receives the correct voltage to avoid damage or abnormal operation.
3. Perform functional testing: Use logic analyzer or oscilloscope to detect the input and output signals of the 3868 chip. According to the data manual of the chip, check for any abnormal signals or unstable waveforms. Verify that the chip performs as expected and check that its electrical characteristics are consistent with specifications.
4. Performance test: Design the corresponding performance test scheme according to the application scenario and requirements of the 3868 chip. For example, if the chip is used for wireless communication, it can test performance indicators such as signal quality, data transmission rate and power consumption for sending and receiving.
5. Temperature test: Temperature test of 3868 chip to evaluate its thermal characteristics. Use a thermometer or thermal imager to measure the temperature of the chip during operation and ensure that it works within the specified temperature range.
6. Reliability test: Check the reliability of the 3868 chip by simulating the abnormal situation during long-term operation or application scenarios. For example, tests such as high temperature, low temperature, vibration, or electromagnetic interference can be performed to verify that the chip can function properly in a variety of environments.
7. Data analysis and result evaluation: Evaluate the quality of 3868 chip according to the test results. The test data is analyzed and compared with the chip specifications to determine if the chip meets the requirements. If there are any anomalies or problems, further investigate the possible causes and repair or replace the chip.
Please note that the above steps are for reference only, and the specific test methods and procedures may vary depending on the specific characteristics and applications of the chip. It is recommended that you read the relevant documents and data manuals and refer to the test guide provided by the manufacturer before testing.
The 3868 chip can detect the voltage of each pin by the voltage file of the multimeter online to judge its quality.