PAMAMP: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
mNo edit summary |
||
| (4 intermediate revisions by 2 users not shown) | |||
| Line 3: | Line 3: | ||
The [http://www.diodes.com/_files/datasheets/PAM8403.pdf PAM8403] is great little class-D stereo amplifier (3 W). Compared to the classic [http://www.ti.com/lit/ds/symlink/lm386.pdf LM386] it is much more efficient to use in a battery powered portable project, since it is class-D. | The [http://www.diodes.com/_files/datasheets/PAM8403.pdf PAM8403] is great little class-D stereo amplifier (3 W). Compared to the classic [http://www.ti.com/lit/ds/symlink/lm386.pdf LM386] it is much more efficient to use in a battery powered portable project, since it is class-D. | ||
You can find very cheap, ready-to-use boards on Ebay or AliExpress, with or without a volume pot. Or design your own | You can find very cheap, ready-to-use boards on Ebay or AliExpress, with or without a volume pot. Or design your own with the temporary KiCAD design below, and integrate it into your own projects... | ||
There are also other variants of this amplifier IC: | There are also other variants of this amplifier IC: | ||
| Line 10: | Line 10: | ||
* [http://www.diodes.com/_files/datasheets/PAM8620.pdf PAM8620 (stereo, more power (15 W))] | * [http://www.diodes.com/_files/datasheets/PAM8620.pdf PAM8620 (stereo, more power (15 W))] | ||
== PAM 8302 or 8302A ? == | |||
Let's make a DIY-CAD version of this.... dusjagr is prototyping | |||
Adafruit has the 8302A: https://www.adafruit.com/product/2130 | |||
dusjagr has around 100 SO-8 versions of the PAM 8302. | |||
[[File:pamamp_rev0.02_pic_00a.png|600px]] [[File:pamamp_rev0.02_pic_01a.png|600px]] | [[File:pamamp_rev0.02_pic_00a.png|600px]] [[File:pamamp_rev0.02_pic_01a.png|600px]] | ||
[[File:pamamp_rev0.02_schematics_00a.png]] | [[File:pamamp_rev0.02_schematics_00a.png]] | ||
Latest revision as of 19:53, 14 April 2021
pamamp
The PAM8403 is great little class-D stereo amplifier (3 W). Compared to the classic LM386 it is much more efficient to use in a battery powered portable project, since it is class-D.
You can find very cheap, ready-to-use boards on Ebay or AliExpress, with or without a volume pot. Or design your own with the temporary KiCAD design below, and integrate it into your own projects...
There are also other variants of this amplifier IC:
- PAM8302A (mono, 2.5 W, QFN package available)
- PAM8404 (stereo, 3W, QFN package available)
- PAM8620 (stereo, more power (15 W))
PAM 8302 or 8302A ?
Let's make a DIY-CAD version of this.... dusjagr is prototyping
Adafruit has the 8302A: https://www.adafruit.com/product/2130
dusjagr has around 100 SO-8 versions of the PAM 8302.
