mkstewartesq
Well-known member
Hi, all:
I've gotten into using shielded I/O cables as a standard practice but a new wrinkle has come up and I'd like your advice.
As you know, you need to ground the shield at one end of the cable. For cables running from an I/O jack to the board, this is easy, just run the shield to the sleeve lug on the jack. But I'm now doing a 2-in-1 build where using shielded cable seems most advisable to minimize the IO cables picking up noise from the boards/ICs (phaser and flanger in one box). But it seems a bit pointess to do that unless I am also using shielded cable for the connection from the out of one 3PDT to the input of the other 3PDT. So I'm trying to think of the best way to ground the shield of that one cable.
As background, I am using 3PDT breakout boards on both #PDTs.
I assume my options (other than running a long bit of shielding up to a jack or the grounding pads at the top of the PCB) are to run the shield to either the ground pad on the breakout board or to the ground pad at the bottom of the main PCB that connects to the 3PDT. Since that is going to make for a crowded pad (the "normal" ground wire between the 3PDT and the main PCB is also going to be in those pads), I just wanted to ask if anyone had any other thoughts about how to ground this before I commit to this.
Thanks,
Mike
I've gotten into using shielded I/O cables as a standard practice but a new wrinkle has come up and I'd like your advice.
As you know, you need to ground the shield at one end of the cable. For cables running from an I/O jack to the board, this is easy, just run the shield to the sleeve lug on the jack. But I'm now doing a 2-in-1 build where using shielded cable seems most advisable to minimize the IO cables picking up noise from the boards/ICs (phaser and flanger in one box). But it seems a bit pointess to do that unless I am also using shielded cable for the connection from the out of one 3PDT to the input of the other 3PDT. So I'm trying to think of the best way to ground the shield of that one cable.
As background, I am using 3PDT breakout boards on both #PDTs.
I assume my options (other than running a long bit of shielding up to a jack or the grounding pads at the top of the PCB) are to run the shield to either the ground pad on the breakout board or to the ground pad at the bottom of the main PCB that connects to the 3PDT. Since that is going to make for a crowded pad (the "normal" ground wire between the 3PDT and the main PCB is also going to be in those pads), I just wanted to ask if anyone had any other thoughts about how to ground this before I commit to this.
Thanks,
Mike