Kerzner International Interview Questions and Answers

Decoupling capacitor is used to stabilize voltage supply by filtering out noise and providing a local energy reserve for integrated circuits.

• Decoupling capacitors are placed close to the power pins of integrated circuits to filter out noise and stabilize the voltage supply.

• They provide a local energy reserve for the ICs to prevent voltage drops during sudden current spikes.

• Decoupling capacitors are essential for high-speed digital circuits to maintain signal integrity and pre...read more

I have worked with high speed interfaces such as DDR3, PCIe, USB 3.0, and SATA.

• DDR3

• PCIe

• USB 3.0

• SATA

Routing involves connecting components on a PCB while length tuning ensures signals arrive at the same time.

• Use high-speed design rules to determine trace width, spacing, and impedance

• Route critical signals first to minimize interference

• Use differential pairs for high-speed signals to maintain signal integrity

• Utilize length matching tools in PCB design software to adjust trace lengths

• Consider signal integrity and EMC requirements during routing

ESD and AC caps are required for protection against electrostatic discharge and filtering of AC noise.

• ESD caps are required to protect sensitive components from damage due to electrostatic discharge.

• AC caps are used for filtering out AC noise and ensuring stable power supply to the circuit.

• ESD caps typically have low capacitance values to quickly discharge any static electricity buildup.

• AC caps are chosen based on the frequency of the noise to be filtered out.

• Both types of ca...read more

DDR3 and PCIe sections should be placed strategically on the PCB layout to minimize signal interference and optimize performance.

• Place DDR3 and PCIe sections on opposite sides of the PCB to reduce signal interference.

• Ensure proper grounding and power distribution for both sections to maintain signal integrity.

• Follow manufacturer's guidelines for trace lengths, impedance matching, and signal routing for DDR3 and PCIe interfaces.

• Consider signal integrity analysis tools to optim...read more