Schematic of a 4 conductor audio plug with 3 switchesĮven though this looks more complex, it is still has the same basic functionality of the single switch variation, except there are 2 additional switches present. Below is an example of a 4 conductor plug, with 3 switches located on the tip, ring 1, and ring 2 terminals. In a similar way, multiple switches could be present on different contacts. Example showing the open contact between terminals 2 and 10 When the tip makes contact with terminal 2, it pushes this spring away from terminal 10 making the contact "open" between these terminals. Now again, we visualize the mating plug being inserted from left to right. It would typically be referred to as a "tip switch" since the switch is located on the "tip" terminal. The switch on the left shown below, is classified as normally closed because in the un-plugged state, terminal 10 is making direct contact (closed) with terminal 2. Now, we are going to add a switch to the terminal 2 position (tip). When reading the schematic, think of the plug being inserted from left to right to align with the respective terminals of the mating jack. Basic drawing of an audio plug and jack schematic This specific example does not include switches. Below is a plug diagram and basic schematic including the typical terminal designations. For this example, we will focus on the standard stereo connector with 3 conductors. Audio plugs can come with as few as 2 conductors up to 6 or more conductors.
SWITCH AUDIO CONVERTER TUTORIAL HOW TO
Typical audio jack schematics showing various switching options How to Read an Audio Jack Schematicīefore we get to the switch function, first we need to understand how to read an audio jack schematic.
Below are some typical schematics that show some of those switching options. These switches are often represented in a schematic for the connector available on the datasheet. Audio jacks are available without switches, with simple switches, or with complex switching systems. What is a Switch?Īt its basic definition relating to electrical connectors, a switch is a device for making and breaking the connection in an electric circuit. In this post, we are going to look at how to read these schematics, describe the various switch types available, and discuss how they are implemented in audio applications. When looking at a seemingly simple audio jack datasheet, you will often find an array of schematics with a variation of switches and connections. To better understand some of their capabilities, we will dig into the "guts" of these connectors and see what they have to offer. While simple in their basic functionality, they can be used in complex systems. Audio jacks have been around for decades and have been used in a wide variety of applications.
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