| Author |
Message |
Captain Blammo
Guest
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 Posted:
Wed Nov 02, 2005 5:35 pm Post subject:
Single Chip Speaker Amp |
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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!
CB
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Spehro Pefhany
Guest
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| Posted:
Wed Nov 02, 2005 5:35 pm Post subject:
Re: Single Chip Speaker Amp |
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On Wed, 02 Nov 2005 14:48:46 GMT, the renowned "Captain Blammo"
<eas6@nbnet.nb.ca> wrote:
| Quote: | 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!
CB
|
Dunno about "minimum of external components", but the LM386 fits the
other requirements and it is cheap.
Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
speff@interlog.com Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com |
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moby
Guest
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| Posted:
Thu Nov 03, 2005 3:50 pm Post subject:
Re: Single Chip Speaker Amp |
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Captain Blammo wrote:
| Quote: | 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!
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
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Ross Herbert
Guest
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| Posted:
Fri Nov 04, 2005 8:57 am Post subject:
Re: Single Chip Speaker Amp |
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On Wed, 02 Nov 2005 14:48:46 GMT, "Captain Blammo" <eas6@nbnet.nb.ca>
wrote:
| Quote: | 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!
CB
|
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
http://www.semiconductors.philips.com/acrobat_download/datasheets/TDA8541_5.pdf
You can go to their website and sort your way through the others. |
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Chris Jones
Guest
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| Posted:
Sat Nov 05, 2005 1:35 am Post subject:
Re: Single Chip Speaker Amp |
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Captain Blammo wrote:
| Quote: | 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!
CB
|
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.
Chris |
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Anton Erasmus
Guest
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| Posted:
Sun Nov 06, 2005 1:29 am Post subject:
Re: Single Chip Speaker Amp |
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On Wed, 02 Nov 2005 14:48:46 GMT, "Captain Blammo" <eas6@nbnet.nb.ca>
wrote:
| Quote: | 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!
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 |
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