Adafruit PAM8302

NajidPI·GBC_RPi·Adafruit-PAM8302-Mono-Amplifier-PCB-master/Adafruit PAM8302/Adafruit PAM8302.kicad_pcb

Adafruit PAM8302 PCB layout, top view — open source board by NajidPI

About the Adafruit PAM8302 PCB

Adafruit PAM8302 is an open source PCB design by NajidPI, published on GitHub. It is a board measuring 24.1 × 15.2 mm, with 18 components from 14 distinct parts.

Other key parts include the PAM8302AASCR. By type, the board carries 5 ICs, 5 capacitors, 3 resistors, 2 inductors, 1 crystal and 1 jumper.

It belongs with the retro computing, audio and dev boards & breakouts designs in this gallery.

From the project

Retrofitting the Gameboy Colour with a Raspberry Pi | Sibling project to entice nostalgia

This super small mono amplifier is surprisingly powerful - able to deliver up to 2.5 Watts into 4-8 ohm impedance speakers. Inside the miniature chip is a class D controller, able to run from 2.0V-5.5VDC. Since the amp is a class D, its very efficient (over 90% efficient when driving an 8Ω speaker at over half a Watt) - making it perfect for portable and battery-powered projects. It has built in thermal and over-current protection but we could barely tell it got hot. There's even a volume trim pot so you can adjust the volume on the board down from the default 24dB gain. This board is a…

Adafruit PAM8302, from the project README — From the project README

Main components on the Adafruit PAM8302

Adafruit PAM8302 bill of materials (BOM)

18 components, 14 distinct parts.

Qty	Part	Footprint	Refs
1	PAM8302AASCR	MSOP8_0.65MM	U1
1	—	SYMBOL_PLUS	U$3
1	—	SYMBOL_MINUS	U$4
1	—	ADAFRUIT_3.5MM	U$5
1	—	PCBFEAT-REV-040	U$6
1	TERMBLOCK_1X2	TERMBLOCK_1X2-3.5MM	X1
1	HEADER-1X570MIL	1X05_ROUND_70	JP1
1	10K trim	TRIMPOT_BOURNS_3303W	VR1
2	Ferrite	_0805	FB1, FB2
2	1uF	0805-NO	C1, C2
1	10uF	0805-NO	C3
2	220pF	0805-NO	C4, C5
2	100	0805-NO	R1, R2
1	10K	0805-NO	R3

Adafruit PAM8302 design files

The KiCad project lives in the NajidPI/GBC_RPi repository on GitHub; these links point at the commit this page was built from.

LayoutAdafruit-PAM8302-Mono-Amplifier-PCB-master/Adafruit PAM8302/Adafruit PAM8302.kicad_pcb

Adafruit PAM8302: common questions

How big is the Adafruit PAM8302 PCB?

The Adafruit PAM8302 measures 24.1 × 15.2 mm and is 1.6 mm thick.

How many components are on the Adafruit PAM8302?

18 components, from 14 distinct parts. The full bill of materials is listed on this page.

Where can I download the Adafruit PAM8302 design files?

From the NajidPI/GBC_RPi repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Adafruit PAM8302 design in my own project?

The repository has no license, so all rights stay with NajidPI. Use it as a reference, and ask the author before reusing the design.

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