Tagged Questions

3
votes
1answer
101 views

Are these pcb layouts good?

I'm working on an USB audio interface; the board has an analog section, with amplifiers and filters for the input and the output signals, a digital section, with the DAC, ADC, and the microcontroller ...
3
votes
3answers
111 views

PA84 op amp instability at high(er) +/- V_s supply voltages

I'm trying to troubleshoot a piezo-driver circuit, which uses a PA84 op amp (10x gain). The schematic I'm working from indicates the supply voltages should be +200 / -15 V, which are well within ...
4
votes
4answers
2k views

Implementing guard trace/ring in PCB design

I have read here and there some articles about pcb guard trace/ring. But none of them discussed how to correctly implent it. What I could find were some pictures and comparison that cant help me at ...
4
votes
1answer
158 views

Looking for good articles about reducing crosstalk and other noise in PCB design

I am designing a rather large PCB with straight parallel traces 20cm long carrying CMOS logic at around 100kHz. On top of that I have 8 MOSFETs supplying 5A switching on/off at around 400Hz which a ...
3
votes
1answer
318 views

Decoupling of A/D converter

I am working on a project that requires the usage of a AD7656 16-bit high speed converter. This chip comes in a 64-LQFP package, which means the package is rather small. Because the prototype boards ...