[INFO] Pinouts for Transformer Headphone/Mic Jack

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Hey guys, thought I'd post up the pinouts. They match the Iphone ones in case anyone is wondering/wanting to make a breakout cable so that you can use headphones and an external mic.

Going from the center outward, i.e. tip to ring1 to ring2 to sleeve:
Tip = Left Channel Output
Ring 1 = Right Channel Output
Ring 2 = Ground (Shared with Microphone)
Sleeve = Microphone

Verified working with my old Logitech PC microphone. I have not checked if there is "phantom power" on the Mic lines (for electret mics).

Thanks!
verkion

if this is the case, i wonder why square readers do not work. Maybe honeycomb?

So there are no combined mic/headphones headsets on the market that would work with transformer (skype, gtalk, etc.)?

Tried to google it with no luck

dcmtnbkr: what are square readers? I managed to get the external microphone working with no problem yesterday.

s_life: any "made for iPhone" mic/headset should work. Same pinouts as them. I just wanted to make a breakout cable for more flexibility.

verkion

pretty typical 4 pole TRRS plug.... common knowledge really.

True...except that R2 and Sleeve are often reversed. Thought I'd do others a favor in case they wanted to make a breakout cable. *shrug* you don't need to know, then good for you.

verkion

Originally Posted by dcmtnbkr

if this is the case, i wonder why square readers do not work. Maybe honeycomb?

Mine works just fine...

Sent from my Bolt using XDA Premium App

Originally Posted by verkion

True...except that R2 and Sleeve are often reversed. Thought I'd do others a favor in case they wanted to make a breakout cable. *shrug* you don't need to know, then good for you.

verkion

well the standard is r2/sleeve reversed, but ever since apple decided to swap them, they became the new standard... anyone would be crazy to release a product that didn't follow that... 99% of products are now compatible with the apple standard, if they want any sales.

i know why you posted it though.

Thanks for the info!

I'm trying with several headsets, from Nokia (WH-205)and from "for iphone"(iFrogz Luxe with mic)

the result was weird tho....

If I plug in the jack fully, 1) Nokia headset's mic don't work, but R/L output is OK
2) "For iPhone" headset's mic is working, but only give me right channel.

but if I plug in the jack only the TRR parts with out the S, 1) Nokia headset work perfectly with both R/L channel output and mic input, but 2) "For iPhone" one still only give me right channel with mic.

Any thought?

Thanks

Originally Posted by verkion

Hey guys, thought I'd post up the pinouts. They match the Iphone ones in case anyone is wondering/wanting to make a breakout cable so that you can use headphones and an external mic.

Going from the center outward, i.e. tip to ring1 to ring2 to sleeve:
Tip = Left Channel Output
Ring 1 = Right Channel Output
Ring 2 = Ground (Shared with Microphone)
Sleeve = Microphone

Verified working with my old Logitech PC microphone. I have not checked if there is "phantom power" on the Mic lines (for electret mics).

Thanks!
verkion

Thanks for posting what hardware worked and this pinout.
However, with previous hardware, I have found even the spacing of a quad plug is important.
If you have a micrometer, could you please post some measurements?
If you have a decent macro camera, could you please post a picture?