sabu31
Advanced Member level 1
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Dear All,
I am making a custom board for using Texas Instruments TMS320F28027. My main concerns are regarding the trace spacing.
I have PWM signals total 8 numbers (4 channels) with typical use frequencies up to 100kHz. Along with this, there are ADC signals. In various PCB design articles/videos, it's mentioned as a thumb rule to keep the space between traces at least 3 times its track width. My signal traces are 10 mils wide. I want to know if this rule of 3 times width is applicable for 100kHz signals. Also, what should the spacing be between the analog and PWM traces to reduce cross-talk.
All analog and PWM signals are coming to a single 22 pin (2.54 mmm pitch and in 2 rows of 11 pins) connector which will be connected to a main power converter board.
I am making a custom board for using Texas Instruments TMS320F28027. My main concerns are regarding the trace spacing.
I have PWM signals total 8 numbers (4 channels) with typical use frequencies up to 100kHz. Along with this, there are ADC signals. In various PCB design articles/videos, it's mentioned as a thumb rule to keep the space between traces at least 3 times its track width. My signal traces are 10 mils wide. I want to know if this rule of 3 times width is applicable for 100kHz signals. Also, what should the spacing be between the analog and PWM traces to reduce cross-talk.
All analog and PWM signals are coming to a single 22 pin (2.54 mmm pitch and in 2 rows of 11 pins) connector which will be connected to a main power converter board.