http://embeddeddesignblog.com/Embedded%20Hardware-4.html
111. what are micro vias and whya re they required?
112. You have an application to use BGA or QFP. which one do you prefer and why?
113. what is the minimum diameter of micro via as per IPC standard?
114. what is the full-form of HDI?
115. What are the differences between FRAM and EEPROM?
116. Mention any few power integrity issues on teh board.
117. Explain the differences between common mode noise and differential mode noise
118. What is the most preffered material to be used for mechanical enclosure?
119. what is the difference between core and pre-peg?
120. How do you design a PCB antenna?
121. How do you test the antenna performance?
122. What is the frequency at which USB3.0 operates?
123. What is siesmic sensor funcitonality?
124. what is the principle of PIR sensor?
125. What are the various RF tools you have worked on?
126. Draw a simple filter mechanism used to cut-off noise at the ADC inputs?
127. What are the different types of ADCs available?
128. How do you decide the stackup of a board?
129. when do you gaurd rings in PCB Layout?
130. What is the difference betwene bypass and decoupling capacitor?
131. what are the advantages and disadvantages of using chip and whip type antenna for a Bluetooth application?
132. what is the frequency of operation of GPS?
133. What are the different frame formats in GPS?
134. How do you do power estimation for your embedded board?
135. What are the different display interfaces available in embedded?
136. what is debouncing in switches?
137. what do you mean by soft-start in embedded systems?
138. what is the difference between a system implemeneted with normal application code and system implemented with RTOS?
139. How does DMA help in embedded systems?
140. What is the difference between RS232 and UART?
141. Why do you need PHY in embedded boards?
142. What is the need for Arbitration in the CAN?
143. Why 120 ohms termination is needed in CAN?
144. Define duty cycle
145. Define baud rate
146. What is an MEMS sensor?
147. What is the need for acclerometer in embedded applications?
148. What are the performance characteristics of hardware?
149. why do we need frequency compensation in switchers?
150. What is the mechanism of buck boost converter?
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1 Comments
We see a lot of them in our homes, in our offices and at shopping malls. Each device has their own characteristic, and they are all equipped with computers embedded board in their system.
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