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Audio line voltage — Parallax Forums

Audio line voltage

ArchiverArchiver Posts: 46,084
edited 2000-11-23 17:12 in General Discussion
This is slightly off-topic, but it is for a stamp application:

Does anyone know the voltage range for line-level audio inputs/outputs?
The things that come in/out of your cd player, tape, etc.

On Wed, 22 Nov 2000 PicProgrammer@a... wrote:


Sean T. Lamont, CTO / Chief NetNerd, Abstract Software, Inc. (ServNet)
Seattle - Bellingham - Vancouver - Portland - Everett - Tacoma - Bremerton
email: lamont@a... WWW: http://www.serv.net
"...There's no moral, it's just a lot of stuff that happens". - H. Simpson

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2000-11-23 04:51
    That would be .5 volt, or -10dbm.

    Craig Latta
    Atragon Consulting


    > This is slightly off-topic, but it is for a stamp application:
    >
    > Does anyone know the voltage range for line-level audio inputs/outputs?
    > The things that come in/out of your cd player, tape, etc.
    >
    > On Wed, 22 Nov 2000 PicProgrammer@a... wrote:
    >
    >
    > Sean T. Lamont, CTO / Chief NetNerd, Abstract Software, Inc. (ServNet)
    > Seattle - Bellingham - Vancouver - Portland - Everett - Tacoma - Bremerton
    > email: lamont@a... WWW: http://www.serv.net
    > "...There's no moral, it's just a lot of stuff that happens". - H. Simpson
    >
    >
    >
    >
  • ArchiverArchiver Posts: 46,084
    edited 2000-11-23 16:13
    If I'm not mistaken, line out voltage is between 200 to 300 mV

    Jon

    Original Message
    From: Sean T. Lamont .lost. [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=b-NgNUhGhszy2byeoGDtdc64y6IukmLMALgClOOsPFyZ-PciDuRs8vtjpKEOyiTox4zSdHZa_7N--g8UP8Y]lamont@a...[/url
    Sent: Wednesday, November 22, 2000 6:37 PM
    To: basicstamps@egroups.com
    Subject: [noparse][[/noparse]basicstamps] Audio line voltage



    This is slightly off-topic, but it is for a stamp application:

    Does anyone know the voltage range for line-level audio inputs/outputs?
    The things that come in/out of your cd player, tape, etc.

    On Wed, 22 Nov 2000 PicProgrammer@a... wrote:


    Sean T. Lamont, CTO / Chief NetNerd, Abstract Software, Inc. (ServNet)
    Seattle - Bellingham - Vancouver - Portland - Everett - Tacoma - Bremerton
    email: lamont@a... WWW: http://www.serv.net
    "...There's no moral, it's just a lot of stuff that happens". - H. Simpson
  • ArchiverArchiver Posts: 46,084
    edited 2000-11-23 17:12
    At 06:37 PM 11/22/00 -0800, Sean T. Lamont .lost. wrote:

    >This is slightly off-topic, but it is for a stamp application:
    >
    >Does anyone know the voltage range for line-level audio inputs/outputs?
    >The things that come in/out of your cd player, tape, etc.

    Nominal level is -10 dBu (about 300 mV RMS).

    dwayne



    Dwayne Reid <dwayner@p...>
    Trinity Electronics Systems Ltd Edmonton, AB, CANADA
    (780) 489-3199 voice (780) 487-6397 fax

    Celebrating 16 years of Engineering Innovation (1984 - 2000)

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