Guest
Wed Dec 21, 2011 8:55 pm
Hi all,
I'm trying to repair an old radio receiver, it has a missing IC, from the
schematic this should be a TBA 450, but I haven't been able to find any
data on this IC. Does anyone have a datasheet or at least a pinout of this IC?
Any cross-reference?
Thanks in advance
Frank IZ8DWF
Franc Zabkar
Guest
Wed Dec 21, 2011 9:35 pm
On 21 Dec 2011 19:55:38 GMT, frank_at_notvalid.it put finger to keyboard
and composed:
Quote:
I'm trying to repair an old radio receiver, it has a missing IC, from the
schematic this should be a TBA 450, but I haven't been able to find any
data on this IC. Does anyone have a datasheet or at least a pinout of this IC?
It's not much, and it's in Polish ...
http://datasheets.pl/T/TBA/TBA450.pdf
That said, it doesn't look like this IC belongs in a radio.
OTOH, my vrt databook refers to the TBA450(N)(Q) as a stereo decoder
in a 16-pin DIP/QIP package. Perhaps Philips and Siemens used the same
number for different ICs???
FWIW, there are some possible hits here:
http://www.google.com/search?q=tba450+OR+%22tba+450%22+filetype%3Apdf+stereo
In fact there is a TBA450 stereo decoder in the circuit diagram at the
bottom left corner of page 3:
http://marchal.jean.free.fr/Schemas/Dual/KA215.pdf
- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.
Guest
Wed Dec 21, 2011 10:10 pm
On 21 Dec 2011 19:55:38 GMT, frank_at_notvalid.it wrote:
Quote:
Hi all,
I'm trying to repair an old radio receiver, it has a missing IC, from the
schematic this should be a TBA 450, but I haven't been able to find any
data on this IC. Does anyone have a datasheet or at least a pinout of this IC?
Any cross-reference?
Thanks in advance
Frank IZ8DWF
I got one hit at
http://www.datasheetarchive.com/, which said it is a
Infineon Technologies Single-Channel Audio Power-Output Amplifier.
No datasheet.
PlainBill
Piotr Piatek
Guest
Wed Dec 21, 2011 10:12 pm
On 21.12.2011 21:35, Franc Zabkar wrote:
Quote:
It's probably a mistake (swapped digits). The IC looks like the
reference oscillator for PAL decoders TBA540.
Guest
Wed Dec 21, 2011 10:25 pm
Franc Zabkar <fzabkar_at_iinternode.on.net> wrote:
Quote:
On 21 Dec 2011 19:55:38 GMT, frank_at_notvalid.it put finger to keyboard
and composed:
I'm trying to repair an old radio receiver, it has a missing IC, from the
schematic this should be a TBA 450, but I haven't been able to find any
data on this IC. Does anyone have a datasheet or at least a pinout of this
IC?
It's not much, and it's in Polish ...
http://datasheets.pl/T/TBA/TBA450.pdf
That said, it doesn't look like this IC belongs in a radio.
indeed, looks like a TV IC.
Quote:
OTOH, my vrt databook refers to the TBA450(N)(Q) as a stereo decoder
in a 16-pin DIP/QIP package. Perhaps Philips and Siemens used the same
number for different ICs???
it is definitely what's missing in the receiver.
I guess it doesn't even have an equivalent.
Thanks
Frank IZ8DWF
N_Cook
Guest
Thu Dec 22, 2011 9:22 am
<frank_at_notvalid.it> wrote in message
news:4ef24ebf$0$6838$5fc30a8_at_news.tiscali.it...
Quote:
Franc Zabkar <fzabkar_at_iinternode.on.net> wrote:
On 21 Dec 2011 19:55:38 GMT, frank_at_notvalid.it put finger to keyboard
and composed:
I'm trying to repair an old radio receiver, it has a missing IC, from
the
schematic this should be a TBA 450, but I haven't been able to find any
data on this IC. Does anyone have a datasheet or at least a pinout of
this
IC?
It's not much, and it's in Polish ...
http://datasheets.pl/T/TBA/TBA450.pdf
That said, it doesn't look like this IC belongs in a radio.
indeed, looks like a TV IC.
OTOH, my vrt databook refers to the TBA450(N)(Q) as a stereo decoder
in a 16-pin DIP/QIP package. Perhaps Philips and Siemens used the same
number for different ICs???
it is definitely what's missing in the receiver.
I guess it doesn't even have an equivalent.
Thanks
Frank IZ8DWF
Telefunken also used TBA...
