Single Chip Speaker Amp

I'm looking for a small through the hole chip that can drive an 8 Ohm speaker with a minimum of external components. I'd be feeding the audio out of an ISD1100.

Any recommendations would be greatly appreciated!


Reply to
Captain Blammo
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Dunno about "minimum of external components", but the LM386 fits the other requirements and it is cheap.

Best regards, Spehro Pefhany

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Reply to
Spehro Pefhany

Some idea of size is needed here - a few milliwatts ? Hundreds of watts ? The Nat Semi LM3886 is my weapon of choice for about 25 watts (about $3). If I want 100 watts, 4 of them in bridge parallel make for a cost effective solution. For a few hundred milliwatts the Philips TDA7052A is great as it has a DC volume control and costs less than a dollar. M

Reply to

There are a number which would fit the bill depending on what you are after. - you haven't been very specific.

I will assume you are looking for a single channel amp capable of about 1W max and will run from 5V. Philips Semi make a few in this range but here is one for starters

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You can go to their website and sort your way through the others.

Reply to
Ross Herbert

TDA2030, TDA2030A or TDA2040 etc.

They draw a fair bit of quiescent current so are not really very good for battery operation, but otherwise I have found them to be excellent and very cheap. Don't believe anyone who tells you that these don't sound as good as some expensive amplifier, unless he proves it in a double-blind A-B test.


Reply to
Chris Jones

Panasonic makes a nice 5V 1W into 8 ohm speaker driver IC in an 8 pin PDIP. The AN7513 which is available from Digikey.

Regards Anton Erasmus

Reply to
Anton Erasmus

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