A simple TI engineer interview question, you can see how many points you can get

seaniu2011

A simple TI engineer interview question, you can see how many points you can get [Copy link]

The following is an example of a written test paper for TI's recruitment of engineers:

I. Multiple-choice questions (3 points for each question, 30 points in total)

1. In TI's MCU products, which of the following cores is common? ( )
A. ARM Cortex-M3
B. MIPS
C. PowerPC
D. x86
2. For a basic amplifier circuit, if the input signal frequency is too high, what problems may occur? ( )
A. Cutoff distortion
B. Saturation distortion
C. Frequency distortion
D. Crossover distortion
3. Which of the following feedback types can improve the stability of the circuit? ( )
A. Positive feedback
B. Voltage positive feedback
C. Current positive feedback
D. Negative feedback
4. A power management chip of TI has an output voltage of 5V and a load resistance of 100Ω. What is the output current? ( )
A. 0.05A
B. 0.5A
C. 5A
D. 50A
5. In digital circuits, what is the main advantage of CMOS gate circuits? （ ）
A. Fast speed
B. Low power consumption
C. Strong anti-interference ability
D. High integration
6. Which of the following communication protocols is commonly used in TI's wireless communication chips? （ ）
A. SPI
B. I2C
C. UART
D. Bluetooth Low Energy
7. For an RC series circuit, how will its impedance change when the input signal frequency increases? （ ）
A. Increase
B. Decrease
C. Increase first and then decrease
D. Decrease first and then increase
8. In TI's analog signal processing, which of the following filter types is not commonly used? （ ）
A. Low-pass filter
B. High-pass filter
C. Band-pass filter
D. Limiting filter
9. The gain of a transistor is 100, and the base current is 10μA. What is the collector current? （ ）
A. 1mA
B. 10mA
C. 100mA
D. 1A
10. Which of the following statements about TI's DSP chip is wrong? ( )
A. Good at digital signal processing
B. Has high-speed computing capabilities
C. Can only be used for audio processing
D. Can be widely used in image processing and other fields

II. Fill in the blanks (4 points for each question, 20 points in total)

1. The full English name of TI is ____________.
2. In semiconductors, free electrons and __________ are carriers.
3. The open-loop gain of an ideal operational amplifier should be __________.
4. For a sine wave signal, the relationship between its peak value and effective value is that the peak value is equal to __________ times the effective value.
5. Common circuit analysis methods include __________, node voltage method, etc.

III. Calculation questions (15 points for each question, 30 points in total)

1. There is a series circuit consisting of a resistor R = 100Ω, an inductor L = 0.1H and a capacitor C = 10μF, connected to an AC power supply with a frequency of 100Hz. Find the impedance Z, current I and power factor of the circuit.
2. A TI amplifier has an input voltage of 10mV and an amplification factor of 1000. If the input resistance of the amplifier is 1kΩ and the output resistance is 100Ω, calculate the output voltage, input current and output power of the amplifier.

IV. Short answer questions (10 points each, 20 points in total)

1. Please briefly introduce TI's main products and application scenarios in the field of analog chips.
2. Talk about your understanding of FFT (Fast Fourier Transform) in digital signal processing and its application in TI's related products.

呜呼哀哉

After doing the mental arithmetic, I couldn't get 100 points, probably around 80 points. This question has varying levels of difficulty and is suitable for students who have just graduated.