Power IC "A210 K" ???

Jennice · 19th March 2005, 10:57 AM

Hi everybody,

I came across a small power IC in DIL 18 or DIL20 housing, with permanently mounted heat sink on it.
It says "A 210 K" and "X9" on it, but I don't know it's specs. Does anyone know this thingy?
any help in finding a data sheet would be appreciated.

Thanks -
Jennice

Leolabs · 21st March 2005, 01:09 AM

try www.datasheetarchive.com

mcs · 21st March 2005, 09:40 PM

The code sounds like an RFT chip (DDR). I seem to remember seing them in old German catalogues - I think it's a TBA810 equivalent.

Best regards,

Mikkel C. Simonsen

Jennice · 22nd March 2005, 06:33 AM

Thanks for your suggestions.

It could seem like a 810 clone. I found the 810 datasheet - What a crappy chip

My thought was to re-use it for speaker testing, but distortion is awful!

I also looked at the TDA2030 (as I don't need a lot of power), but it's no use over 10-15kHz.

Any suggestions for a chip that has better figures over the audio bandwidth? My idea was to make it simple and buy a chip-amp, but if it gets too expensive, I might as well build a discrete amp. I don't need a lot of gain (maybe x1 to x5).

Jennice

demogorgon · 22nd March 2005, 10:55 AM

you are gonna be shocked by my sugestion, as it have never been the subject of discussion in this forum, the lm1875. thats a nice litle power opamp, or offcource, the lm1876 if you are in need of stereo.

some TDA cips might be good choises as well, but i dont know of any at the top of my head, or you can try to get some opa548 samples from TI, they come in 7 pin to 220 pacs. quite nice really, got 5 of them

ThorstenL · 22nd March 2005, 12:38 PM

Konnichiwa,

Quote:

Originally posted by Jennice
I came across a small power IC in DIL 18 or DIL20 housing, with permanently mounted heat sink on it.
It says "A 210 K" and "X9" on it, but I don't know it's specs.

Quote:

Originally posted by Jennice
It could seem like a 810 clone. I found the 810 datasheet - What a crappy chip

You are absolutley correct, it is a very early Chip Amp, an east german copy of the 810. They also made copies of the TDA2020 & TDA2030 called A2020 and A2030 respecively and an A109 Op-Amp is basically a uA709.

I fondly remember the A210K as being the first Amplifier Chip I ever used. The sound was BAD!

Quote:

Originally posted by Jennice
Any suggestions for a chip that has better figures over the audio bandwidth?

LM1875, LM3875.

Sayonara

19th March 2005, 10:57 AM	#1
Jennice diyAudio Member Join Date: Jun 2003 Location: Planet Earth	Power IC "A210 K" ??? Hi everybody, I came across a small power IC in DIL 18 or DIL20 housing, with permanently mounted heat sink on it. It says "A 210 K" and "X9" on it, but I don't know it's specs. Does anyone know this thingy? any help in finding a data sheet would be appreciated. Thanks - Jennice __________________ I get paid to break stuff. My g/f gets paid to play with children. Life is good.

21st March 2005, 09:40 PM	#3
mcs diyAudio Member Join Date: Aug 2003 Location: Denmark	The code sounds like an RFT chip (DDR). I seem to remember seing them in old German catalogues - I think it's a TBA810 equivalent. Best regards, Mikkel C. Simonsen __________________ My personal electronics website Remote control kits website

22nd March 2005, 06:33 AM	#4
Jennice diyAudio Member Join Date: Jun 2003 Location: Planet Earth	Thanks for your suggestions. It could seem like a 810 clone. I found the 810 datasheet - What a crappy chip My thought was to re-use it for speaker testing, but distortion is awful! I also looked at the TDA2030 (as I don't need a lot of power), but it's no use over 10-15kHz. Any suggestions for a chip that has better figures over the audio bandwidth? My idea was to make it simple and buy a chip-amp, but if it gets too expensive, I might as well build a discrete amp. I don't need a lot of gain (maybe x1 to x5). Jennice __________________ I get paid to break stuff. My g/f gets paid to play with children. Life is good.

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21st March 2005, 01:09 AM	#2
Leolabs diyAudio Member Join Date: Dec 2004 Location: Bukit Mertajam	try www.datasheetarchive.com

22nd March 2005, 10:55 AM	#5
demogorgon diyAudio Member Join Date: Jul 2004 Location: Behind you.	you are gonna be shocked by my sugestion, as it have never been the subject of discussion in this forum, the lm1875. thats a nice litle power opamp, or offcource, the lm1876 if you are in need of stereo. some TDA cips might be good choises as well, but i dont know of any at the top of my head, or you can try to get some opa548 samples from TI, they come in 7 pin to 220 pacs. quite nice really, got 5 of them

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