Stereo Amplifier Dual BTL TDA2822

salindersidhu·pcb-projects·stereo-amplifier-dual-btl-tda2822/stereo-amplifier-dual-btl-tda2822.kicad_pcb

Stereo Amplifier Dual BTL TDA2822 PCB layout, top view — open source board by salindersidhu

About the Stereo Amplifier Dual BTL TDA2822 PCB

Stereo Amplifier Dual BTL TDA2822 is an open source PCB design by salindersidhu, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 50.6 × 54.6 mm, with 29 components from 15 distinct parts.

Other key parts include the TDA2822. By type, the board carries 14 capacitors, 8 resistors, 4 connectors and 2 ICs.

It belongs with the audio designs in this gallery.

From the project

Personal electronics and PCB projects created in KiCad with full documentation.

This project is a compact stereo audio amplifier PCB based on two TDA2822 audio power amplifier ICs. Each IC is configured in bridged-tied-load (BTL) mode to drive a single speaker, providing significantly higher output power than the standard stereo configuration. The design includes an onboard analog volume control, a standard 3.5 mm auxiliary input, and differential bridge outputs for left and right speakers.

Stereo Amplifier Dual BTL TDA2822, from the project README — From the project README

Main components on the Stereo Amplifier Dual BTL TDA2822

Stereo Amplifier Dual BTL TDA2822 bill of materials (BOM)

29 components, 15 distinct parts.

Qty	Part	Footprint	Refs
2	TDA2822	DIP762W45P254L1092H508Q8	U1, U2
1	SPK L	JST_B2B-XH-A	J1
1	SPK R	JST_B2B-XH-A	J2
1	PWR IN	JST_B2B-XH-A	J3
1	AUX IN	CUI_SJ1-3513N	J4
1	50k	Potentiometer_Alps_RK163_Dual_Horizontal	RV1
2	4.7u	C_Rect_L7.2mm_W7.2mm_P5.00mm_FKS2_FKP2_MKS2_MKP2	C1, C2
2	10n	C_0805_2012Metric	C3, C4
2	22u	CP_Radial_D5.0mm_P2.00mm	C5, C6
2	0.1u	C_0805_2012Metric	C7, C8
4	0.1u	CAPRR500W50L730T450H950	C9, C12, C13, C14
2	470u	CP_Radial_D8.0mm_P3.50mm	C10, C11
2	10k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R1, R2
2	47k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R3, R4
4	4.7	R_1206_3216Metric_Pad1.30x1.75mm_HandSolder	R5, R6, R7, R8

Stereo Amplifier Dual BTL TDA2822 design files

The KiCad project lives in the salindersidhu/pcb-projects repository on GitHub; these links point at the commit this page was built from.

Stereo Amplifier Dual BTL TDA2822: common questions

How big is the Stereo Amplifier Dual BTL TDA2822 PCB?

The Stereo Amplifier Dual BTL TDA2822 measures 50.6 × 54.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Stereo Amplifier Dual BTL TDA2822?

29 components, from 15 distinct parts. The full bill of materials is listed on this page.

Where can I download the Stereo Amplifier Dual BTL TDA2822 design files?

From the salindersidhu/pcb-projects repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Stereo Amplifier Dual BTL TDA2822 design in my own project?

Yes, under the terms of its Apache-2.0 license, which salindersidhu chose for the repository.

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