anyone have any experiences with low wattage chip amps?

AltecDarpa · 26th March 2010, 04:50 AM

Like the little says, any input on low powered chip amps in the 1-10 watt per channel range, I have been looking at some of the low wattage Philips chips and would like some opinions or reviews of amps in that power range.

sasmit · 27th March 2010, 12:33 PM

Quote:

Originally Posted by AltecDarpa

Like the little says, any input on low powered chip amps in the 1-10 watt per channel range, I have been looking at some of the low wattage Philips chips and would like some opinions or reviews of amps in that power range.

You could look at TDA1010A or TDA 2020A beautiful sounding IC's ..albeit quite old. These have been around for 15years now.

http://www.selectronic.fr/includes_s...s/TDA1010A.pdf
http://www.datasheetcatalog.org/data.../378196_DS.pdf

I had made an amp based on TDA1010A somewhere around '97 and it sounded really nice to me back then

pacificblue · 27th March 2010, 10:42 PM

Or you could just as well use a 'normal powered' chipamp with reduced supply voltage. At the specified minimum of ±10 V the LM1876, 3875, 3886, etc. deliver 3,5..4 W into 8 Ohm. The TDA2030 and its brothers can work with even lower supply voltages.

DigitalJunkie · 27th March 2010, 10:52 PM

I've used the TDA7350 for a while,in an amp that I built.. not a bad little chip.

richie00boy · 27th March 2010, 11:07 PM

Quote:

Originally Posted by sasmit

You could look at TDA1010A or TDA 2020A beautiful sounding IC's ..albeit quite old. These have been around for 15years now.

http://www.selectronic.fr/includes_s...s/TDA1010A.pdf
http://www.datasheetcatalog.org/data.../378196_DS.pdf

I had made an amp based on TDA1010A somewhere around '97 and it sounded really nice to me back then

TDA2020 sounds gash and is ancient. I've had a few amps with this chip as my dad used to design hifi in the 70s with them.

wakibaki · 27th March 2010, 11:54 PM

They're OK, but they tend to be older designs, and consequently not as good as more recent ones. There are some newer ones, often some kind of technology or (SMT?) packaging change, not necessarily major and possibly involving some trade-offs. That's about as much as you can say as a general rule...

T-amp (TA2024) is a good amp operated in that power range... but it's not in production, so although you can get them, not necessarily what you would choose for a new commercial design. A comparatively difficult build, you can get them (built, cheap, stereo) so it gets my recommendation for DIY. Only things, will it fit, does it match your supply?

w

johnr66 · 28th March 2010, 02:52 AM

TDA1517 6 watt x 2 stereo amp. Vs 14.4 volts. Expect around 4 to 4.5 watts of "clean power (before clipping) with 4 Ohm loads.

TDA7267A 3 watt x 1 mono amp. 2.3 clean watts with 8 Ohm load at 14.5 Vs.

Both chips are super easy to use thanks to fixed gain, complementary output stage (not bootstrap cap needed for full output swing) and no boucherot cell. They sound fine to my ears, although I don't profess to have "golden" ears. Scoping the outputs, I was not able to cause instability as long as good circuit board layout is used.

asad_asad · 21st January 2012, 09:58 PM

Tda1517p or tpa3110 (can u found

johnr66 · 22nd January 2012, 04:18 PM

TDA7267A Very low part count, sounds great, highest output swing at given supply voltage without bootstrap cap. Said to use fully complementary output design. Fixed gain.

TDA1517 Very low part count, great sound, high output swing, two amps in one IC (stereo) SIP or DIP versions.

TDA2003 5 pin easy to use chip amp. Handles down to 1.6 ohm loads in single ended mode. High output swing without the extra parts (bootstrap). External negative feedback loop for adjustability.

TDA2050 easy to use, dual or single supply setup, sounds fantastic, Works on low voltages. External negative feedback loop for adjustability. Better output swing than the older LM1875 or the TDA2040.

26th March 2010, 04:50 AM	#1
AltecDarpa diyAudio Member Join Date: Jun 2008	anyone have any experiences with low wattage chip amps? Like the little says, any input on low powered chip amps in the 1-10 watt per channel range, I have been looking at some of the low wattage Philips chips and would like some opinions or reviews of amps in that power range.

27th March 2010, 10:42 PM	#3
pacificblue diyAudio Member Join Date: May 2008	Or you could just as well use a 'normal powered' chipamp with reduced supply voltage. At the specified minimum of ±10 V the LM1876, 3875, 3886, etc. deliver 3,5..4 W into 8 Ohm. The TDA2030 and its brothers can work with even lower supply voltages. __________________ If you've always done it like that, then it's probably wrong. (Henry Ford)

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27th March 2010, 10:52 PM	#4
DigitalJunkie diyAudio Member Join Date: Apr 2003 Location: Portland,Oregon Blog Entries: 4	I've used the TDA7350 for a while,in an amp that I built.. not a bad little chip.

27th March 2010, 11:54 PM	#6
wakibaki Banned Join Date: Jan 2008 Blog Entries: 2	They're OK, but they tend to be older designs, and consequently not as good as more recent ones. There are some newer ones, often some kind of technology or (SMT?) packaging change, not necessarily major and possibly involving some trade-offs. That's about as much as you can say as a general rule... T-amp (TA2024) is a good amp operated in that power range... but it's not in production, so although you can get them, not necessarily what you would choose for a new commercial design. A comparatively difficult build, you can get them (built, cheap, stereo) so it gets my recommendation for DIY. Only things, will it fit, does it match your supply? w

28th March 2010, 02:52 AM	#7
johnr66 diyAudio Member Join Date: Mar 2009	TDA1517 6 watt x 2 stereo amp. Vs 14.4 volts. Expect around 4 to 4.5 watts of "clean power (before clipping) with 4 Ohm loads. TDA7267A 3 watt x 1 mono amp. 2.3 clean watts with 8 Ohm load at 14.5 Vs. Both chips are super easy to use thanks to fixed gain, complementary output stage (not bootstrap cap needed for full output swing) and no boucherot cell. They sound fine to my ears, although I don't profess to have "golden" ears. Scoping the outputs, I was not able to cause instability as long as good circuit board layout is used.

21st January 2012, 09:58 PM	#8
asad_asad diyAudio Member Join Date: Jan 2010	Tda1517p or tpa3110 (can u found

22nd January 2012, 04:18 PM	#9
johnr66 diyAudio Member Join Date: Mar 2009	TDA7267A Very low part count, sounds great, highest output swing at given supply voltage without bootstrap cap. Said to use fully complementary output design. Fixed gain. TDA1517 Very low part count, great sound, high output swing, two amps in one IC (stereo) SIP or DIP versions. TDA2003 5 pin easy to use chip amp. Handles down to 1.6 ohm loads in single ended mode. High output swing without the extra parts (bootstrap). External negative feedback loop for adjustability. TDA2050 easy to use, dual or single supply setup, sounds fantastic, Works on low voltages. External negative feedback loop for adjustability. Better output swing than the older LM1875 or the TDA2040.

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