LM3886 2.1 Power Amplifier - EasyEDA open source hardware lab

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STD LM3886 2.1 Power Amplifier

License: Public Domain

Mode: Editors' pick

Update time： 2021-09-24 05:35:50

Creation time： 2020-01-05 18:22:35

Description

Three channel Audio Power amplifier based on LM3886 and NE5532

Design Drawing

schematic diagram

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PCB

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BOM

ID	Name	Designator	Footprint	Quantity
1	4700uf	C1,C2,C3,C4,C5	CAP-TH_BD16.0-P7.50-D1.2-FD	5
2	10uF	C6,C7,C13	CAP-D3.0XF1.5	3
3	220pF	C8,C10,C12,C15	RAD-0.1	4
4	47u	C9,C11	CAP-D3.0XF1.5	2
5	47uf	C14	RAD-0.1	1
6	100uf	C16,C17,C18	CAP-D3.0XF1.5	3
7	10000uF	C19	CAP-TH_BD30.0-P10.00-D2.3-FD	1
8	GBU610	D1	GBU-22.2X3.53	1
9	+12	LED1	LED-TH_BD3.2-P2.54-FD	1
10	-12	LED2	LED-TH_BD3.2-P2.54-FD	1
11	Header-Male-2.54_1x1	P0-GND,P1,P2,P3,P4,P5,P6,P7,P8,P9,P+5,P+12,P+VIN1,P-12,P-VIN1	HDR-1X1/2.54	15
12	1k	R1,R2,R21,R32,R33,R46,R47,R54,R55	RAD-0.1	9
13	10K Volume	R3	RES-ADJ-TH_RK16312A0BKR	1
14	10K	R4,R17,R22,R24	RES-ADJ_3296W	4
15	47k	R5,R11,R30	RAD-0.1	3
16	500	R6,R16,R25,R37,R42,R50	RAD-0.1	6
17	50k	R7,R15,R23,R26	RAD-0.1	4
18	10k	R8,R14,R18,R19,R27	RAD-0.1	5
19	100K	R9,R13,R20,R28,R35,R36,R43,R44,R51,R52	RES-ADJ_3296W	10
20	100k	R10,R12,R29	RAD-0.1	3
21	10K SubW Volume	R31	RES-ADJ-TH_RK1631110TT3	1
22	1K	R34,R39,R40,R45,R48,R53	RAD-0.1	6
23	5K	R38,R41,R49	RAD-0.1	3
24	Power In	TB1	CONN-TH_3P-P3.81_L7.4-W11.4	1
25	5V	TB2	WJ500V-5.08-2P	1
26	Audio In	TB3	CONN-TH_3P-P3.81_L7.4-W11.4	1
27	Left	TB4	WJ500V-5.08-2P	1
28	Right	TB5	WJ500V-5.08-2P	1
29	SubW	TB6	WJ500V-5.08-2P	1
30	L7812	U1	TO-220(TO-220-3)	1
31	L7912	U2	TO-220(TO-220-3)	1
32	L7805	U3	TO-220(TO-220-3)	1
33	LM3886T	U6,U7,U8	TO-220-11_L20.0-W4.5-P1.70-BL	3
34	NE5532P	U4,U5	DIP-8_L9.4-W6.4-P2.54-LS9.1-BL	2

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