User TemeV

21 votes

Can only the master initiate communication in SPI whereas in I2C the slave can also initiate the communication?

answered May 13, 2019 at 4:39

12 votes

Accepted

Data Strobe in DDR memory

answered Nov 23, 2018 at 19:03

7 votes

Why not use a diode instead of a resistor for current sense circuits?

answered Jul 27, 2019 at 17:49

6 votes

Accepted

In a 2 layer PCB with a top layer densely populated, from an EMI & EMC point of view should the ground plane be on top, bottom or both and why?

answered Aug 11, 2019 at 18:19

5 votes

Multiple switching LED drivers on single PCB

answered Jul 27, 2019 at 21:24

5 votes

Accepted

How the PCB-A are designed?

answered Dec 12, 2018 at 19:06

5 votes

Accepted

Do chips really need multiple values of decoupling capacitor in the same packages?

answered Dec 22, 2018 at 22:52

5 votes

Any trick to use the ground pin?

answered Dec 27, 2018 at 7:33

4 votes

why high frequency are blocked by walls but allowing low frequency?

answered Oct 20, 2019 at 18:23

3 votes

Why is eMMC in a BGA package, despite only using a small number of pins?

answered Jan 11, 2020 at 14:51

3 votes

8-layer Stackup: 3 cores vs 4 cores

answered Aug 19, 2019 at 19:27

3 votes

Controlled Traces Length in SD card

answered Jan 7, 2019 at 11:29

3 votes

Accepted

Average power dissipated as the heat in the resistor

answered Dec 21, 2018 at 18:25

2 votes

Accepted

Do we need certifications for device designed for 240V

answered May 27, 2019 at 16:59

2 votes

4 Layer PCB stack up

answered Jun 2, 2019 at 17:21

2 votes

Accepted

Do I definitely not want to to add a ground wire to this UART connection?

answered Dec 17, 2018 at 20:43

2 votes

Impedance-matched antenna with an extra capacitor

answered Nov 20, 2018 at 20:37

2 votes

Is a ground plane meaningful even where the signal return path is not through ground?

answered Jul 27, 2019 at 8:58

2 votes

Does SRAM need PCB track length/impedance matching

answered Jan 15, 2020 at 14:39

2 votes

Accepted

Can I share charge pumps between multiple L6206 H-Bridge drivers?

answered Jul 28, 2019 at 16:37

2 votes

Full-bridge or half-bridge for a DC motor

answered Jul 30, 2019 at 16:21

2 votes

Accepted

Is a cosmetic logotype on an outer copper layer a bad idea?

answered Aug 17, 2019 at 22:21

2 votes

Accepted

FCC certified module with uncertified antenna: technical or legal issue?

answered Jul 22, 2019 at 19:00

1 vote

Accepted

How does an accelerometer interpret g as ( +9.8 or -9.8 )

answered Jul 27, 2019 at 7:25

1 vote

Accepted

How to cut a nano SIM out of a 8-pin SIM?

answered Aug 18, 2019 at 20:22

1 vote

How to forward the body diode of the mosfet without triggering the parasitic bjt?

answered Nov 22, 2018 at 15:37

1 vote

Forward converter input current

answered Nov 18, 2018 at 19:39

1 vote

Running a 12V PWM Water pump on a 5V fan output with tacho input

answered Nov 18, 2018 at 20:07

1 vote

Do output LEDs here need resistors?

answered Nov 24, 2018 at 15:45

1 vote

Deal with DC offset

answered Dec 8, 2018 at 21:43

Stack Exchange Network

47 Answers

Can only the master initiate communication in SPI whereas in I2C the slave can also initiate the communication?

Data Strobe in DDR memory

Why not use a diode instead of a resistor for current sense circuits?

In a 2 layer PCB with a top layer densely populated, from an EMI & EMC point of view should the ground plane be on top, bottom or both and why?

Multiple switching LED drivers on single PCB

How the PCB-A are designed?

Do chips really need multiple values of decoupling capacitor in the same packages?

Any trick to use the ground pin?

why high frequency are blocked by walls but allowing low frequency?

Why is eMMC in a BGA package, despite only using a small number of pins?

8-layer Stackup: 3 cores vs 4 cores

Controlled Traces Length in SD card

Average power dissipated as the heat in the resistor

Do we need certifications for device designed for 240V

4 Layer PCB stack up

Do I definitely not want to to add a ground wire to this UART connection?

Impedance-matched antenna with an extra capacitor

Is a ground plane meaningful even where the signal return path is not through ground?

Does SRAM need PCB track length/impedance matching

Can I share charge pumps between multiple L6206 H-Bridge drivers?

Full-bridge or half-bridge for a DC motor

Is a cosmetic logotype on an outer copper layer a bad idea?

FCC certified module with uncertified antenna: technical or legal issue?

How does an accelerometer interpret g as ( +9.8 or -9.8 )

How to cut a nano SIM out of a 8-pin SIM?

How to forward the body diode of the mosfet without triggering the parasitic bjt?

Forward converter input current

Running a 12V PWM Water pump on a 5V fan output with tacho input

Do output LEDs here need resistors?

Deal with DC offset