Re: RCA to PCB connections
From: Barry (bg_ie_at_yahoo.com)
Date: 07/27/04
- Next message: colin: "Re: Piezo audio preamp works but I would like advice"
- Previous message: Andrew VK3BFA: "Re: ceramic resonators gone electrically leaky?"
- In reply to: Barry: "Re: RCA to PCB connections"
- Next in thread: legg: "Re: RCA to PCB connections"
- Messages sorted by: [ date ] [ thread ]
Date: 27 Jul 2004 07:48:51 -0700
Sorry, sub rca for bnc above...
bg_ie@yahoo.com (Barry) wrote in message news:<731cea69.0407270202.775ebdb5@posting.google.com>...
> Thanks for your suggestion.
>
> So basically I would have the bnc female connectors on each board
> facing each other, with about 1cm between each. This will connect the
> signal lines, but what about the ground lines? I could solder them
> perhaps with a short lenth of copper wire, but I don't want to
> interfere with the codec board.
>
> How would your u-bend suggestion compare with the use of such a
> connector -
>
> http://www.ba-electronics.com/caa40b.jpg
>
> with regard to signal to noise ratio? I guess it would depend on the
> material - gold, tin etc. So, would I get the same performance with a
> tinned u-bend and a tinned connector as in the diagram? I'd like to go
> with your suggestion because this would give me only 1cm or so of
> seperation between the two boards. This will allow me to design a
> larger board.
>
> The bnc connectors on my board appear to be tin plated and the
> converters have a SNR of around 90dBs -
>
> http://www.icet.pucpr.br/afonso/Graduacao/Outros/Audio/tlv320aic23-manual.pdf
> http://www.tij.co.jp/jsc/docs/msp/da/products/pdf/tlv320aic23.pdf
>
> Thanks for your help.
>
> Barry.
>
>
>
>
>
> legg <legg@nospam.magma.ca> wrote in message news:<bkgbg09bmkvf1hoi3j10vbpiblu4l5q2ic@4ax.com>...
> > On 26 Jul 2004 13:31:54 -0700, bg_ie@yahoo.com (Barry) wrote:
> >
> > >Hi all,
> > >
> > >I'm designing a PCB board to interface to my DSP motherboard and Codec
> > >Daughterboard. The Daughterboard PCB is about half the size of the
> > >motherboard, and sits on the latter, interfacing via 2
> > >SAMTEC–TFM–140 connectors.
> > >
> > >The Codec has 2 ADCs and 2 DACs, which have phono rca connectors as
> > >follows -
> > >
> > >http://www.seniorindustries.com/prod_images/P-SI-374-X-X.jpg
> > >
> > >I only need to connect my PCB via these RCA connectors to the Codec,
> > >so I was thinking of making my board about the same size as the Codec
> > >board and sitting it on the remaining half of the DSP - there are two
> > >holes available on the DSP for this purpose. I was then actually
> > >hoping to find a connector similar to that in the last image, but of
> > >the male variety. Unfortunately I cant find one. This would have
> > >allowed my to easily connect the two boards together. Anyway, I'm now
> > >wondering how exactly I should connect the rca connectors on the Codec
> > >board to my pcb board, remembering that the two boards will be side by
> > >side.
> > >
> > >Perhaps I should make a rca connector with a male connection on one
> > >end (connecting to the Codec) and solder the opposite end to my PCB.
> > >I'm not sure though about shielding in this case.
> > >
> > >Maybe the easiest option would be to put female bncs on my board also,
> > >and connect the two via very short male-to-male bnc cables. Although I
> > >think they might take up too much room between the two boards. The
> > >codec is about 8cms in length, and my board would be of a similar
> > >length.
> >
> > Solid tinned copper wire of a suitable gauge has been used to jumper
> > RCA jack sets in the past. If these are female sockets, pointing in
> > similar directions and with a fixed distance from center to center,
> > the jumper becomes a simple U bend of tinned copper.
> >
> > RL
- Next message: colin: "Re: Piezo audio preamp works but I would like advice"
- Previous message: Andrew VK3BFA: "Re: ceramic resonators gone electrically leaky?"
- In reply to: Barry: "Re: RCA to PCB connections"
- Next in thread: legg: "Re: RCA to PCB connections"
- Messages sorted by: [ date ] [ thread ]
Relevant Pages
|
