Hello everyone
I'm struggling to understand how works a capsule/condenser mic , I would like to design a pream based on the THAT1512 ( see attached )
First question : What kind of stage is there in the body of the mic ? , I mean, is there a pre-preamp just for the capsule ?
In the schematic attached below i guess the capsule is not wired on J1 ?
if i would like to desing a PCB where evething would hold into the body of the mic , a 3 pins XLR would not be enough ?
Thx you for your advices
I'm struggling to understand how works a capsule/condenser mic , I would like to design a pream based on the THAT1512 ( see attached )
First question : What kind of stage is there in the body of the mic ? , I mean, is there a pre-preamp just for the capsule ?
In the schematic attached below i guess the capsule is not wired on J1 ?
if i would like to desing a PCB where evething would hold into the body of the mic , a 3 pins XLR would not be enough ?
Thx you for your advices
Attachments
To have a better understanding , Can you recommand me a schematics that start from the capsule to the balanced lines that goes into a mixer table ?
maybe with the phantom PSU ?
maybe with the phantom PSU ?
There is a FET inside the capsule that needs 1.5V to 9V, doing impedance matching. No capacitor inside, the output sits on some DC voltage. Google for connection diagram.
Sorry, my answer was incomplete. It is best to use a 1:1 balancing transformer. You can give power to the microphone from a 9V battery (add a power switch if you like), and connect its signal output to the transformer through a 10uF/16V capacitor, + side at the microphone. The phantom power is too high for this kind of microphone. And the noise level will not be super low, they are intended for dictaphones and the like.
Correct.
You better say which microphone you are thinking about. There are thousands. A one-buck mike for an old tape recorder? In-ear microphones for bootlegging concerts? Studio microphones?