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2.The process supports design scales of 300 devices or 1000 pads
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STD LM339 VU Meter
Mode: Editors' pick
- 0
Update time：
2020-07-04 05:37:12
Creation time：
2019-02-01 21:55:11
Description
Another attempt at a good VU/power meter WITHOUT using an Microcontroller.
Design Drawing
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | Header-Female-2.54_1x2 | P3 | HDR-1X2/2.54 | 1 |
| 2 | 1N4148 | D2,D1 | DO-35 | 2 |
| 3 | 1uF | C2,C1 | CAP-D5.0XF2.0 | 2 |
| 4 | Header-Male-2.54_1x3 | H1 | HDR-TH_3P-P2.54-V | 1 |
| 5 | 100uF | C4 | CAP-D10.0XF5.0 | 1 |
| 6 | L7805ABV | U5 | TO-252-3_3PIN-L6.85-W6.70-PITCH2.40-L | 1 |
| 7 | 0.1uF | C3 | RAD-0.1 | 1 |
| 8 | 10K | R37,R18 | RES-ADJ_CT-94EW | 2 |
| 9 | 3K | R29,R10 | AXIAL-0.3 | 2 |
| 10 | 1k | R17,R6,R5,R4,R8,R13,R20,R21,R3,R23,R24,R25,R26,R27,R7,R32,R36,R2,R1,R22 | AXIAL-0.3 | 20 |
| 11 | 100K | R19,R38 | AXIAL-0.3 | 2 |
| 12 | 18K | R9,R28 | AXIAL-0.3 | 2 |
| 13 | 2.2K | R11,R30 | AXIAL-0.3 | 2 |
| 14 | 1.6K | R12,R31 | AXIAL-0.3 | 2 |
| 15 | 820 | R14,R33 | AXIAL-0.3 | 2 |
| 16 | 620 | R15,R34 | AXIAL-0.3 | 2 |
| 17 | 390 | R35,R16 | AXIAL-0.3 | 2 |
| 18 | LED-3MM | LED15,LED16,LED9,LED8,LED10,LED11,LED12,LED6,LED13,LED5,LED14,LED4,LED3,LED2,LED1,LED7 | LED-3MM/2.54 | 16 |
| 19 | LM339N | U4,U2,U3,U1 | DIP-14 | 4 |
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