[sdiy] NE545B datasheet (Dolby C NR chip)

[HOSHUYAMA]

Hello Johannes,

NE545 is for Dolby B.  (I have some in my parts box.)

If you or your frined can access the following AES paper,
pin connection and an application circuit are shown there.

  http://www.aes.org/e-lib/browse.cfm?elib=2554

I have a copy of the paper, but, don't want to run a risk 
of violating copyright.

Internal circuit is available in a dolby's patent (Pin 
connection is not shown unfortunately):

  http://www.pat2pdf.org/patents/pat4068139.pdf

Sam Hoshuyama
Saitama, JAPAN

From: "Johannes 〓erg" <johannes.oberg at gmail.com>
Date: 2007/04/26 08:20:16
> I guess the subject line says it all... I have a pair of Dolby C (?)
> noise reduction chips and need some info, at least pinout. Anybody?
> I've googled like crazy but to no avail. Is there any other name for
> this chip?