Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

How to connect a condenser mic to pick up voice?

Status
Not open for further replies.

saturn

Member level 1
Joined
Jul 3, 2004
Messages
32
Helped
2
Reputation
4
Reaction score
0
Trophy points
1,286
Location
Solar System
Activity points
267
Condenser MIC

Hello all,
How could I connect a condenser mic to pick up voice?

Thanks.
 

IanP

Advanced Member level 5
Joined
Oct 5, 2004
Messages
7,942
Helped
2,311
Reputation
4,624
Reaction score
531
Trophy points
1,393
Location
West Coast
Activity points
66,416
Re: Condenser MIC

Here you wll find some info:
**broken link removed**
 

    saturn

    Points: 2
    Helpful Answer Positive Rating

saturn

Member level 1
Joined
Jul 3, 2004
Messages
32
Helped
2
Reputation
4
Reaction score
0
Trophy points
1,286
Location
Solar System
Activity points
267
Condenser MIC

Dear IanP,
Thanks very much.

OK now I get something to work with. But Can anyone please explain the circuit. For example the purpose of R1, R2, R3. I think C3 is for coupling purpose. But what about C2?

Thanks.
 

IanP

Advanced Member level 5
Joined
Oct 5, 2004
Messages
7,942
Helped
2,311
Reputation
4,624
Reaction score
531
Trophy points
1,393
Location
West Coast
Activity points
66,416
Re: Condenser MIC

C2 limits the bandwidth and most likely prevents against oscillation in the circuit.
R1- dc to mic,
R2/R3 dc bias to buffer/emitter follower based on T1,
C3, C4, C5 and C7 - coupling caps,
2-stage amplifier (gain ~2) based on T2,
R5/C1 - LPF.
 

    saturn

    Points: 2
    Helpful Answer Positive Rating
Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top