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RE: Minibox caller id


  • To: ukha_d@xxxxxxx
  • Subject: RE: Minibox caller id
  • From: Stuart Poulton <swp@xxxxxxx>
  • Date: Sun, 18 Aug 2002 17:55:28 +0100 (BST)
  • Mailing-list: list ukha_d@xxxxxxx; contact ukha_d-owner@xxxxxxx
  • Reply-to: ukha_d@xxxxxxx

Hi All,

> I haven't taken a Meteor apart, but browsing around the RS site (sad I= know)
> there are a load of caller ID chips all around =A35 which makes me won= der why the
> Meteor is so bloody expensive!

Meteor uses the NPC  SM8220P chip, data sheet here :

http://ww= w.gadgeteer.org.uk/xAP/SM8220-1_Nc9508de.pdf

This is a discontinued chip from the manufacturer, however the AudioLine 55 i believe uses the SM8221P chip, which is the 8pin verision of the
above, I've not yet however had chance to interface to the AudioLine unit <= BR> as this requires opto-isolationdue to grounding issues with the phoneline.<= BR>
As for the meteor cost, BABT approval dosn't come cheap, which is what I suupect makes the cost relatively high.

Stuart


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