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richieqianle
  • Member for 8 years, 6 months
  • Last seen more than 3 years ago
12 votes
1 answer
3k views

CAN bus signal integrity

9 votes
4 answers
2k views

Is it possible to have a MCU work at -55 degree, with specification of -40 to 85 degree working environment?

8 votes
3 answers
6k views

50MHz SPI PCB routing, use vias or resistors?

7 votes
2 answers
1k views

How on earth shall I design the ground planes for mixed signal circuits, split or not?

6 votes
1 answer
894 views

How to choose PCB manufacturing technology/factory?

6 votes
4 answers
5k views

ESD protection for OpAmp inputs and outputs

6 votes
1 answer
470 views

Are these EMI noises?

5 votes
1 answer
1k views

Power line protection: overvoltage, ESD, voltage polarity

5 votes
3 answers
5k views

How to protect Reset pin of MCU from ESD strikes?

5 votes
3 answers
2k views

How to build a large WIFI system inside a factory which supports thousands of devices? [closed]

5 votes
1 answer
196 views

How power system is designed for extreme small system, such as google contact lens?

5 votes
4 answers
2k views

For Multiple ADC circuits PCB layout grounding, why is "single point ground" important?

5 votes
4 answers
4k views

How to select gain for an amplifier before ADC?

5 votes
8 answers
3k views

Why are there only PID controllers, no PIIIDDD (higher order) controllers?

4 votes
1 answer
336 views

Would low frequency signal (10kHz) have reflection on conducting wires as well?

4 votes
3 answers
2k views

loop area and EMI

4 votes
2 answers
11k views

How to design a 4th/6th/8th passive low pass filter?

4 votes
1 answer
2k views

Look up tables, Flash or SRAM?

3 votes
3 answers
11k views

Where are these 50Hz noises from?

3 votes
2 answers
3k views

Tips on routing multiple powers(+5/-5/+15/-15/3.3 and etc. ) for a four-layer PCB

3 votes
1 answer
5k views

Clean DC power design for very high precision circuit

3 votes
1 answer
1k views

Is it possible to open two files simultaneously in Multisim?

3 votes
4 answers
2k views

How to select ADC resolution, considering input signal SNR and digital signal processing?

2 votes
2 answers
681 views

Is my understanding correct in selecting ADC resolution? (Noise analysis)

2 votes
2 answers
480 views

How should Ground vias be placed?

2 votes
1 answer
994 views

The relation between light electric field and light power (optical modulation)

2 votes
3 answers
295 views

Is time-invariant system taking system initial state account?

2 votes
3 answers
174 views

How to design connectors when I do not know what the customers want?

2 votes
1 answer
236 views

Circuit reliability, especially tin solder, under wide temperature range -40 degree to +85 degree

1 vote
3 answers
5k views

When shall a current output DAC be used?