UAA180 VU-Meter

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STD UAA180 VU-Meter

License: Public Domain

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Update time： 2023-02-04 20:37:05

Creation time： 2019-09-11 17:44:11

Description

This is a Integrated Circuit LED VU-meter using 2xUAA180 CI that drives 12 LEDs each. The preamp stage is using TL072 OpAmp. This is the stereo version.

Design Drawing

schematic diagram

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UAA180 VU-Meter
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PCB

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UAA180 VU-Meter
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Led PCB
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BOM

BOM download Purchase Parts

ID	Name	Designator	Footprint	Quantity
1	Header-Female-2.54_1x2	P3	HDR-1X2/2.54	1
2	47n	C6,C5,C4,C2	CAP-3.597	4
3	INL/R	H2	HDR-TH_3P-P2.54-V	1
4	+/-Vcc	H1	HDR-TH_3P-P2.54-V	1
5	UAA180	U1,U3	DIP-18_18PIN-LS7.62-L23.37-W6.86-PITCH2.54	2
6	47uF	C1,C7	CAP-D6.3XF2.5	2
7	2.2uF	C3,C8	CAP-D5.0XF2.0	2
8	3AR2UC12 600-900	LED25,LED8,LED9,LED10,LED11,LED12,LED2,LED5,LED1,LED6,LED4,LED24,LED23,LED22,LED21,LED20,LED3,LED19,LED7,LED13,LED14,LED15,LED16,LED17,LED18	LED-3MM	25
9	33k	R3,R20	AXIAL-0.4	2
10	10k	R4,R19	AXIAL-0.4	2
11	220	R5,R18	AXIAL-0.4	2
12	390	R6,R17,R9,R14	AXIAL-0.4	4
13	180k	R12,R11	AXIAL-0.4	2
14	330k	R13,R15,R8,R10	AXIAL-0.4	4
15	2.2k	R7,R16,R23	AXIAL-0.4	3
16	1M	R21,R2	AXIAL-0.4	2
17	47k	R22,R1	AXIAL-0.4	2
18	1N4148	D4,D15,D14,D17,D1,D2,D3,D13,D5,D16	DO-35	10
19	Header-Female-2.54_1x13	P1,P2	HDR-13X1/2.54	2
20	Header-Male-2.54_1x2	H5	HDR-2X1/2.54	1
21	HM2.54_1X13	H3,H4	HM2.54_1X13	2
22	TL072IP	U2,U4	PDIP-8	2