DIY 4x Analog Switch PCB & Panel

PCB & Panel set for DIY 4x Analog Switch designed by terrabite3. I ordered PCBs from JLCPCB. I have 5 sets of pcbs and parts, so I'm selling extras. Check my shop for the built module or full kit options.

Open source hardware design by terrabite3, project page at github[dot]com/terrabite3/4x-Analog-Switch for the official repo of this open source hardware project.

Description of the project from the module designer below:

This is a quad analog switch based on the MAX4533 analog switch IC. The jacks are directly connected to the switch IC for minimum resistance and maximum versatility.

The switch may be used in either direction.

• Send two signals into the A and B ports, and select which one goes to the X port.
• Send a signal into the X port, and select whether it goes to the A or B port. The other port is pulled low with a 100k resistor.

The connection is selected by both the toggle switch and the SEL input. The toggle is a 3-position switch.

• When the switch is in the up position, A is selected.
• When the switch is in the down position, B is selected.
• When the switch is in the middle position, the SEL input selects A or B.
• If SEL is high (above 3V), A is selected. If SEL is low (below 2V), B is selected. The SEL input has a Schmitt trigger so that slowly changing inputs won't cause glitches.
• If the SEL input is unconnected and the switch is in the middle position, B is selected by default.

In addition to the standard 10-pin Eurorack power header, I've included two daisy-chain power headers at the top corners of the board. This will allow adjacent units to share power. I plan to add these to most of my new designs.