Merge development: UI layout + UI BOM decisions
This commit is contained in:
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da7faf1e91
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README.md
225
README.md
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@ -38,13 +38,16 @@ All inputs (besides the microphones) and outputs should:
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This results in a signal flow like this: 
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## Status
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### Tasks
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- [x] Requirements collection
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- [x] Electrical design draft/ proof of concept (breadboard)
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- [x] Proof of concept validation
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- [x] First PCB layout
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- [x] First PCB layout (prototyping modules)
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- [x] More testing/ validation
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- [ ] Second PCB layout + casing prototype
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- [ ] More testing/ validation
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Help is always appreciated!
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@ -56,27 +59,28 @@ Help is always appreciated!
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- [x] Adjustable headphone mix and output volume
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- [ ] ESD protection and galvanic isolation of line inputs and outputs
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- [x] VU meter (own PCB)
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- [ ] VU meter (integrated in front panel PCB)
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- [ ] Mute and On-Air buttons
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## Electrical Design
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This chapter contains some notes on the electrical design.
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Currently just the sources of the used circuit designs.
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### Sources and Design Considerations
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#### Microphone Input
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##### Preamplifier
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### Microphone Input
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#### Preamplifier
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For the microphone preamp, we are using the NE5534 low-noise opamp with a circuit design from [circuitlib microphone pre-amp](https://www.circuitlib.com/index.php/schematics/product/29-balanced-microphone-preamplifier).
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##### Controllable Amplification
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#### Controllable Amplification
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In a normal mixer, you would be able to lower the microphone's volume to zero.
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But in our case we just need on/ off and some gain range to adjust for different microphones and loudness of different people.
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TODO: Integrate the On-Air button with it's LEDs
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#### Line Input/ Input Module
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### Line Input/ Input Module
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The line input must not be amplified at all, because loudness control of the headphones is done by the headphone amplifier section.
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But the differential line-level signal must be converted to a single-ended signal by the input stage.
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@ -85,7 +89,8 @@ The second part of that circuit was taken from the [circuitlib audio mixer tutor
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TODO: How to achieve galvanic isolation?
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#### Summing
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### Summing
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Summing is needed in two places: Creating the sum of all microphones (not adjustable, fixed output gain) and for the headphone mix (one input level adjustable).
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A simple summing circuit using one operational amplifier is enough for our application, like in [circuitlib audio mixer tutorial](https://www.circuitlib.com/index.php/tutorials/product/39-how-to-build-an-audio-mixer).
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@ -95,28 +100,140 @@ In our case, there are just two types of summing: All microphones for the interp
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Because the stage input is quite independent of the interpreter's microphones, no special phase/ inversion considerations are needed.
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And the microphones connected to our unit will experience the same inversions anyways.
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#### Line Output Driver
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### Line Output Driver
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Line Output conversion is done by the [DRV134](https://www.ti.com/product/DRV134) IC.
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TODO: How to achieve galvanic isolation?
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#### Headphone Output Driver
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### Headphone Output Driver
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The headphone output needs a maximum output power of about 0.1 W and should put the mono signal on both stereo channels of the TRS jack.
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For the first draft, we're using one LM386 audio power amplifier even though it has a quite high minimal amplification of factor 20.
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#### VU Meter
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### VU Meter
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When searching for VU meter circuits, many use the LM3916 LED bar graph driver, which already has the right scaling built in.
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But this chip is obsolete and not produced any more, so we designed our own chain of comperators to drive a set of LEDs.
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#### User Interface Hardware
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For the potentiometers, we first wanted to use ones with a conductive plastic resistor element for maximum longevity from Bourns, but these are hard to find with logarithmic scaling.
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An affordable and easily obtainable (Reichelt) alternative was found in the Alps RK11K and RK14K series.
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They are available in linear and logarithmic scale, as well as single (mono) and dual (stereo) units and have a nice feeling.
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Another potentiometer from Omeg was tried, but it had a "jump" in the resistor value at some knob positions.
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TODO: On-Air button
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## User Interface
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The user interface should enable the interpereters to adjust their microphone gain and headphone mix on their own.
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Additionally, a (permanent) on/off switch, as well as a (temporary) mute button should be present.
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A possible UI layout might look like this: 
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### Potentiometers
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We need some single and dual channel logarithmic scale potentiometers, which are matching in size, for:
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- top plate interface (all vertical style, threaded collar would be nice):
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* 1 single channel for the input gain (resistance doesn't matter)
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* 2 single and 1 stereo channel for the headphone mix (ideally 50K, b/c 3 will be in parallel)
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- front plate next to the headset jacks (horizontal style, threaded collar not needed):
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* 1 single channel for the headphone volume (ideally 50K, b/c that's already tested)
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Possible knobs may be:
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- (A) Re'an F311/ F313 series (11/ 13 mm diameter) -- 0.40 €/ 0.55 €:
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Boring: 9.0 mm D-style hole + 0.0 mm nut cover section = 9.0 mm
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- (B) Re'an P670 series (12 mm diameter/ 16 mm at bottom) (alt. Davies Molding 1101) -- 0.78 €:
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Boring: 7.5 mm D-style hole + 4.5 mm nut cover section = 12.0 mm
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Nut cover: 12.9 mm diameter (M7 nut is 12.5 mm corner to corner)
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- (C) Re'an P300 series (11 mm diameter/ 15 mm at bottom):
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Boring: 9.0 mm D-style hole + 3.0 mm nut cover section = 12.0 mm
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Nut cover: ? mm diameter (M7 nut is 12.5 mm corner to corner)
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- ~~(D) Cliff K87MAR series/ RS Pro 777-73xx: 7.5 mm hole depth + 4.5 mm skirt = 12 mm, inner size of skirt 12 mm (measured)~~
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~~Notes: D-style boring has wrong size (5 mm instead of 4.5 mm flatted)~~
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Potentiometers from Alps Alpine seem to have a decent quality in a small package size and quite affordable price.
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From their lineup, the RK09K/D, RK11/12/14, RK09L and RK097 series are left considering our requirements (mouser prices without VAT, shortlist marked bold):
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- Alps Alpine Series RK09K/D (6 mm D-style (4.5 mm) shaft):
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* vertical (top plate):
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+ **single channel: 10K, 15 mm -- RK09K1130AJ3 -- 0.91 €**
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actual shaft length (dwg. 2): 7.4 mm (6 mm flattened)
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_matching knobs: A_
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+ dual channel: 10K, 15 mm -- RK09K12C0A19 -- 1.23 €
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actual shaft length (dwg. 10): 7.4 mm (6 mm flattened)
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_matching knobs: A_
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+ **dual channel: 50K, 20 mm -- RK09K12C0A2S -- 1.44 €**
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actual shaft length (dwg. 10): 12.4 mm (7 mm flattened)
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_matching knobs: C, B (depending on front plate thickness)_
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* horizontal (front plate):
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* single channel: 10K, 15 mm -- RK09K1110A2S -- 0.67 €
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actual shaft length (dwg. 1): 7.4 mm (6 mm flattened)
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_matching knobs: A_
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* **single channel: 50K, 15 mm -- RK09K1110B1R -- 0.67 €**
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actual shaft length (dwg. 6): 7.4 mm (6 mm flattened)
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_matching knobs: A_
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- Alps Alpine Series RK09L (6 mm D-style (4.5 mm) shaft, collar with M7 thread):
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* vertical (top plate):
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+ **single channel: 10K, 12.5 mm -- RK09L1140A5E -- 1.61 €**
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actual shaft length (dwg. 2): 7.5 mm (7 mm flattened) + 5 mm thread length
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_matching knobs: A_
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+ **dual channel: 10K, 15 mm -- RK09L12D0A1W -- 1.64 €**
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actual shaft length (dwg. 4): 10 mm (7 mm flattened) + 7 mm thread length
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_matching knobs: C, B (depending on front plate thickness)_
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+ dual channel: 10K, 20 mm -- RK09L12D0A1T -- 1.64 €
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actual shaft length (dwg. 4): 15 mm (12 mm flattened) + 7 mm thread length
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_matching knobs: Unknown, b/c of quite long shaft_
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* horizontal (front plate):
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+ **single channel: 10K, 15 mm -- RK09L1120A2S -- 1.62 €**
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actual shaft length (dwg. 1): 10 mm (7 mm flattened) + 5 mm thread length
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_matching knobs: C, B (depending on front plate thickness)_
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+ single channel: 10K, 20 mm -- RK09L1120A69 -- 1.30 €
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actual shaft length (dwg. 1): 15 mm (12 mm flattened) + 7 mm thread length
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_matching knobs: Unknown, b/c of quite long shaft_
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+ dual channel: 50K, 15 mm -- RK09L12B0A31 -- 1.78 €
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actual shaft length (dwg. 3): 10 mm (7 mm flattened) + 5 mm thread length
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_matching knobs: C, B (depending on front plate thickness)_
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- ~~Alps Alpine Series RK11K/12L/14K~~: no suitable options
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- ~~Alps Alpine Series RK097 (6 mm D-style (4.5 mm) shaft, collar with M7 thread)~~: Only horizontal style and quite expensive (2.16 €/ 2.96 €)
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**Selection**:
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- Input gain:
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* RK09K1130AJ3 (single, 10K, 15 mm) + Re'an F311/ F313 (diameter TBD)
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* or RK09K12C0A2S (dual, 50K, 20 mm) + Re'an P670 or similar
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- Headphone mix:
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* RK09K12C0A2S (dual, 50K, 20 mm) + Re'an P670
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- Headphone volume:
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* RK09K1110B1R (single, 50K, 15 mm) + Re'an F311/ F313 (diameter TBD)
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### Switches
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The **On-Air** button needs to be a latching DPDT switch, ideally with LED illumination and max. 8 mm height (PCB to front plate), like:
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- E-Switch TL2230EEF140, no illumination -- 0.60 €
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DPDT, PCB mount
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Height: 7.0 mm + 5.5 mm plunger (2x3 mm cap terminal)
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Cap: see APEM models
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- **APEM MHPS2273 (EU version: PHAP4673), no illumination, no audible click -- 0.41 €**
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DPDT, PCB mount
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Height: 7.0 mm + 5.5 mm plunger (2x3 mm cap terminal)
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Cap: U542x (11.5 mm square, 4 mm height), **U453x (9.4 mm dia., 6.65 mm height) -- 0.64 €**
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Cap color codes: **2 Black**, 4 Grey, 5 Yellow, 6 Red
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The **mute** button needs to be a momentary SPST (normally open) or SPDT push button, like:
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- E-Switch TL2230OAF140, no illumination -- 0.53 €
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DPDT, PCB mount
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Height: 7.0 mm + 5.5 mm plunger (2x3 mm cap terminal)
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Cap: see APEM models
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- **APEM 1413NC6/ 1415NC6 -- 3.72 €**
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SPST/ SPDT, front plate snap-in mount, solder lugs
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Button size: 12 mm square, Color: Red (color code 6)
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Cap: U542x (11.5 mm square, 4 mm height), **U453x (9.4 mm dia., 6.65 mm height) -- 0.64 €**
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Cap color codes: 2 Black, 4 Grey, 5 Yellow, 6 Red
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Depth: 13 mm + 6 mm for contacts = 19 mm
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- NKK Switches LP0115C{C,M}KW01-C -- 7.91 €
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SPDT, front plate bushing/ snap-in mount, solder lugs
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Button size: 13.6 mm dia., Color: Red (color code C)
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Depth: 22 mm
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### Casing
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The casing should be a desk console (angled surface), ideally with space at the front to mount the headset ports (XLR and 6.3 mm jack), like:
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- [Bopla ATPH 1865-0250](https://www.bopla.de/gehaeusetechnik/product/alu-topline/alu-topline-gehaeuse/atph-1865-0250.html) (front might not have enough space for the connectors)
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- Design our own casing to laser cut/ 3D print
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## Notes
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@ -133,56 +250,61 @@ Approximate prices in Euro.
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Connectors and Buttons (User Interface)
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| Count | Art. No. | Description | Price |
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|-------|---------------------|---------------------|-------|
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| 1 | Neutrik NAC3 MPA-1 | Main Power Input | 3,33 |
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| 1 | Neutrik NCJ 6 FAH | Line Input | 1,27 |
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| 1 | Neutrik NC3 MD-LX | Line Output | 3,22 |
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| 1 | | | TODO |
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| 3x1 | Neutrik NC3 FD-LX | Microphone Input | 3,44 |
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| 3x1 | Neutrik NJ3 FP-6-C | Headphone Output | 5,40 |
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| 3x1 | TODO | Mute Button | TODO |
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| 3x1 | TODO | On-Air Button | TODO |
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| 3x4 | Alps RK11K1120-A503 | 50K log. Gain/ Vol. | 1,32 |
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| 3x1 | Alps RK14K12B0A0R | 50K log. Vol. (st.) | 1,50 |
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| 1 | Vishay M64{Y,Z}104 | 100K Trim Pot. | 0,95 |
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| Count | Manufacturer + Art. No. | Description | €/ pc.|
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|-------|--------------------------|----------------------------------|-------|
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| 1 | Neutrik NAC3 MPA-1 | Mains Power Input | 3.33 |
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| 1 | Neutrik NCJ 6 FAH | Line Input | 1.27 |
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| 1 | Neutrik NC3 MAAH | Line Output | 0.92 |
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| 3x1 | Neutrik NCJ 6 FAH | Headset Microphone Input | 1.27 |
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| 3x1 | Rean NYS 216 G | Headphone Output | 0.93 |
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| 3x1 | APEM 1415NC6 | Mute Button (red cap, snap-in) | 3.72 |
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| 3x1 | APEM MHPS2273 | On-Air Button | 0.41 |
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| 3x1 | APEM U4532 | On-Air Button black cap | 0.64 |
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| 3x1 | Alps RK09K1130AJ3 | 10K log Mono Pot. (Gain) | 0.91 |
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| 3x1 | Re'an F311 | Potentiometer Knob | 0.40 |
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| 3x3 | Alps RK09K12C0A2S | 50K log Dual Pot. (Headset Mix) | 1.44 |
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| 3x3 | Re'an P670 | Potentiometer Knob | 0.78 |
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| 3x1 | Alps RK09K1110B1R | 50K log Mono Pot. (Headset Vol.) | 0.67 |
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| 3x1 | Re'an F311 | Potentiometer Knob | 0.40 |
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| 1 | Vishay M64{Y,Z}104 | 100K Trim Pot. | 0.95 |
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| | | **SUM** | 54.50 |
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Sub-Components
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| Count | Art. No. | Description | Price |
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|-------|---------------------|---------------------|-------|
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| 1 | Traco Power TXL 035-1515D or TOP 60533 | Power Supply | ~48,00 |
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| Count | Manufacturer + Art. No. | Description | €/ pc.|
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|-------|--------------------------|----------------------------------|-------|
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| 1 | Traco Power TXL 035-1515D or TOP 60533 | Power Supply | ~48.00 |
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PCB Components: TODO when schematic is finished
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| Count | Art. No. | Description | Price |
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|-------|---------------------|---------------------|-------|
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| 3 | NE5534 | Low-noise Op-Amp | 0,54 |
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| 8 | LM833 | Generic Op-Amp | 0,88 |
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| 3 | LM386N-4 | Audio Power Amp | 0,83 |
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| 1 | DRV143 | Line Driver | 4,50 |
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| TODO | TODO | El. Capacitor | TODO |
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| TODO | TODO | Cer. Capacitor | TODO |
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| TODO | TODO | Resistor | TODO |
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| Count | Manufacturer + Art. No. | Description | €/ pc.|
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|-------|--------------------------|----------------------------------|-------|
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| 3 | NE5534 | Low-noise Op-Amp | 0.54 |
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| 8 | LM833 | Generic Op-Amp | 0.88 |
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| 3 | LM386N-4 | Audio Power Amp | 0.83 |
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| 1 | DRV143 | Line Driver | 4.50 |
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| TODO | TODO | El. Capacitor | TODO |
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| TODO | TODO | Cer. Capacitor | TODO |
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| TODO | TODO | Resistor | TODO |
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| | | **SUM** | TODO |
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VU Meter Components
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| Count | Art. No. | Description | Price |
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| Count | Art. No. | Description | €/ pc.|
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|-------|---------------------|---------------------|-------|
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| 1 | Vishay M64{Y,Z}104 | 50K Trim Pot. | 0,95 |
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| 1 | LM833 | Generic Op-Amp | 0,88 |
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| 2 | 1N4148 | Signal Diode | 0,02 |
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| 1 | Vishay M64{Y,Z}503 | 50K Trim Pot. | 0.95 |
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| 1 | LM833 | Generic Op-Amp | 0.88 |
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| 2 | 1N4148 | Signal Diode | 0.02 |
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| 1 | 1k Metal Film | Resistor | TODO |
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| 1 | 3.9k Metal Film | Resistor | TODO |
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| 1 | 47 uF | El. Capacitor | TODO |
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| 1 | 100k Metal Film | Resistor | TODO |
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| 3 | LM339 | Quad-Ch. Comperator | 0,29 |
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| 3 | LM339 | Quad-Ch. Comperator | 0.29 |
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| 5 | 100 nF | Cer. Capacitor | TODO |
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| 1 | 1 uF | El. Capacitor | TODO |
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| 5 | Vishay TLHR 5404 | LED red | 0,18 |
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| 4 | Vishay TLHY 5404 | LED yellow | 0,14 |
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| 3 | Vishay TLHG 5404 | LED green | 0,17 |
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| 5 | Vishay TLHR 5404 | LED red | 0.18 |
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| 4 | Vishay TLHY 5404 | LED yellow | 0.14 |
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| 3 | Vishay TLHG 5404 | LED green | 0.17 |
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| 12 | 390R | Resistor | TODO |
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| 1 | 39R | Resistor | TODO |
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| 2 | 68R | Resistor | TODO |
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@ -195,3 +317,4 @@ VU Meter Components
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| 1 | 1.5K | Resistor | TODO |
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| 2 | 2.7K | Resistor | TODO |
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| 1 | 3.9K | Resistor | TODO |
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| | | **SUM** | TODO |
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|
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docs/ui-layout.odg
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docs/ui-layout.odg
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docs/ui-layout.pdf
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@ -255,6 +255,28 @@ X ~ 2 0 -150 110 U 50 50 1 1 P
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ENDDRAW
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ENDDEF
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#
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# Device_D
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#
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DEF Device_D D 0 40 N N 1 F N
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F0 "D" 0 100 50 H V C CNN
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F1 "Device_D" 0 -100 50 H V C CNN
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F2 "" 0 0 50 H I C CNN
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F3 "" 0 0 50 H I C CNN
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$FPLIST
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TO-???*
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*_Diode_*
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*SingleDiode*
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D_*
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$ENDFPLIST
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DRAW
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P 2 0 1 10 -50 50 -50 -50 N
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P 2 0 1 0 50 0 -50 0 N
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P 4 0 1 10 50 50 50 -50 -50 0 50 50 N
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X K 1 -150 0 100 R 50 50 1 1 P
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X A 2 150 0 100 L 50 50 1 1 P
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ENDDRAW
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ENDDEF
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||||
#
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# Device_R
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#
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DEF Device_R R 0 0 N Y 1 F N
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@ -430,19 +452,16 @@ X -15V 1 0 0 0 U 50 50 0 0 W N
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ENDDRAW
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ENDDEF
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#
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# power_GNDREF
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# power_GND
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#
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DEF power_GNDREF #PWR 0 0 Y Y 1 F P
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||||
DEF power_GND #PWR 0 0 Y Y 1 F P
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F0 "#PWR" 0 -250 50 H I C CNN
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F1 "power_GNDREF" 0 -150 50 H V C CNN
|
||||
F1 "power_GND" 0 -150 50 H V C CNN
|
||||
F2 "" 0 0 50 H I C CNN
|
||||
F3 "" 0 0 50 H I C CNN
|
||||
DRAW
|
||||
P 2 0 1 0 -25 -75 25 -75 N
|
||||
P 2 0 1 0 -5 -100 5 -100 N
|
||||
P 2 0 1 0 0 -50 0 0 N
|
||||
P 2 0 1 0 50 -50 -50 -50 N
|
||||
X GNDREF 1 0 0 0 D 50 50 1 1 W N
|
||||
P 6 0 1 0 0 0 0 -50 50 -50 0 -100 -50 -50 0 -50 N
|
||||
X GND 1 0 0 0 D 50 50 1 1 W N
|
||||
ENDDRAW
|
||||
ENDDEF
|
||||
#
|
||||
|
|
|
|||
File diff suppressed because it is too large
Load diff
File diff suppressed because it is too large
Load diff
File diff suppressed because it is too large
Load diff
|
|
@ -903,13 +903,13 @@ F 3 "https://www.ti.com/lit/ds/symlink/lm339.pdf" H 1250 5100 50 0001 C CNN
|
|||
0 -1 -1 0
|
||||
$EndComp
|
||||
$Comp
|
||||
L power:GNDREF #PWR017
|
||||
L power:GND #PWR017
|
||||
U 1 1 5FD55EE5
|
||||
P 4600 9650
|
||||
AR Path="/5FD55EE5" Ref="#PWR017" Part="1"
|
||||
AR Path="/5FA7BAE6/5FD55EE5" Ref="#PWR041" Part="1"
|
||||
F 0 "#PWR017" H 4600 9400 50 0001 C CNN
|
||||
F 1 "GNDREF" H 4605 9477 50 0000 C CNN
|
||||
F 1 "GND" H 4605 9477 50 0000 C CNN
|
||||
F 2 "" H 4600 9650 50 0001 C CNN
|
||||
F 3 "" H 4600 9650 50 0001 C CNN
|
||||
1 4600 9650
|
||||
|
|
@ -991,13 +991,13 @@ F 3 "~" H 2050 7250 50 0001 C CNN
|
|||
-1 0 0 1
|
||||
$EndComp
|
||||
$Comp
|
||||
L power:GNDREF #PWR018
|
||||
L power:GND #PWR018
|
||||
U 1 1 5FCB34D1
|
||||
P 1450 7500
|
||||
AR Path="/5FCB34D1" Ref="#PWR018" Part="1"
|
||||
AR Path="/5FA7BAE6/5FCB34D1" Ref="#PWR042" Part="1"
|
||||
F 0 "#PWR018" H 1450 7250 50 0001 C CNN
|
||||
F 1 "GNDREF" H 1455 7327 50 0000 C CNN
|
||||
F 1 "GND" H 1455 7327 50 0000 C CNN
|
||||
F 2 "" H 1450 7500 50 0001 C CNN
|
||||
F 3 "" H 1450 7500 50 0001 C CNN
|
||||
1 1450 7500
|
||||
|
|
@ -1072,13 +1072,13 @@ $EndComp
|
|||
Wire Wire Line
|
||||
3200 8350 3300 8350
|
||||
$Comp
|
||||
L power:GNDREF #PWR015
|
||||
L power:GND #PWR015
|
||||
U 1 1 5FCB351D
|
||||
P 2500 8550
|
||||
AR Path="/5FCB351D" Ref="#PWR015" Part="1"
|
||||
AR Path="/5FA7BAE6/5FCB351D" Ref="#PWR040" Part="1"
|
||||
F 0 "#PWR015" H 2500 8300 50 0001 C CNN
|
||||
F 1 "GNDREF" H 2505 8377 50 0000 C CNN
|
||||
F 1 "GND" H 2505 8377 50 0000 C CNN
|
||||
F 2 "" H 2500 8550 50 0001 C CNN
|
||||
F 3 "" H 2500 8550 50 0001 C CNN
|
||||
1 2500 8550
|
||||
|
|
@ -1138,13 +1138,13 @@ Wire Wire Line
|
|||
Wire Wire Line
|
||||
1500 8250 1600 8250
|
||||
$Comp
|
||||
L power:GNDREF #PWR014
|
||||
L power:GND #PWR014
|
||||
U 1 1 5FFA8E8D
|
||||
P 1350 8500
|
||||
AR Path="/5FFA8E8D" Ref="#PWR014" Part="1"
|
||||
AR Path="/5FA7BAE6/5FFA8E8D" Ref="#PWR039" Part="1"
|
||||
F 0 "#PWR014" H 1350 8250 50 0001 C CNN
|
||||
F 1 "GNDREF" H 1355 8327 50 0000 C CNN
|
||||
F 1 "GND" H 1355 8327 50 0000 C CNN
|
||||
F 2 "" H 1350 8500 50 0001 C CNN
|
||||
F 3 "" H 1350 8500 50 0001 C CNN
|
||||
1 1350 8500
|
||||
|
|
@ -1207,11 +1207,11 @@ F 3 "" H 900 1900 50 0001 C CNN
|
|||
1 0 0 -1
|
||||
$EndComp
|
||||
$Comp
|
||||
L power:GNDREF #PWR06
|
||||
L power:GND #PWR06
|
||||
U 1 1 5FB1F99A
|
||||
P 900 2400
|
||||
F 0 "#PWR06" H 900 2150 50 0001 C CNN
|
||||
F 1 "GNDREF" H 905 2227 50 0000 C CNN
|
||||
F 1 "GND" H 905 2227 50 0000 C CNN
|
||||
F 2 "" H 900 2400 50 0001 C CNN
|
||||
F 3 "" H 900 2400 50 0001 C CNN
|
||||
1 900 2400
|
||||
|
|
@ -1232,11 +1232,11 @@ Wire Wire Line
|
|||
7150 750 7150 1300
|
||||
Connection ~ 7150 1300
|
||||
$Comp
|
||||
L power:GNDREF #PWR07
|
||||
L power:GND #PWR07
|
||||
U 1 1 5FB7DBA4
|
||||
P 1500 2400
|
||||
F 0 "#PWR07" H 1500 2150 50 0001 C CNN
|
||||
F 1 "GNDREF" H 1505 2227 50 0000 C CNN
|
||||
F 1 "GND" H 1505 2227 50 0000 C CNN
|
||||
F 2 "" H 1500 2400 50 0001 C CNN
|
||||
F 3 "" H 1500 2400 50 0001 C CNN
|
||||
1 1500 2400
|
||||
|
|
@ -1261,22 +1261,22 @@ F 3 "~" H 900 3750 50 0001 C CNN
|
|||
1 0 0 -1
|
||||
$EndComp
|
||||
$Comp
|
||||
L power:GNDREF #PWR08
|
||||
L power:GND #PWR08
|
||||
U 1 1 5FBCBBA0
|
||||
P 900 3900
|
||||
F 0 "#PWR08" H 900 3650 50 0001 C CNN
|
||||
F 1 "GNDREF" H 905 3727 50 0000 C CNN
|
||||
F 1 "GND" H 905 3727 50 0000 C CNN
|
||||
F 2 "" H 900 3900 50 0001 C CNN
|
||||
F 3 "" H 900 3900 50 0001 C CNN
|
||||
1 900 3900
|
||||
1 0 0 -1
|
||||
$EndComp
|
||||
$Comp
|
||||
L power:GNDREF #PWR09
|
||||
L power:GND #PWR09
|
||||
U 1 1 5FBCBBA6
|
||||
P 1500 3900
|
||||
F 0 "#PWR09" H 1500 3650 50 0001 C CNN
|
||||
F 1 "GNDREF" H 1505 3727 50 0000 C CNN
|
||||
F 1 "GND" H 1505 3727 50 0000 C CNN
|
||||
F 2 "" H 1500 3900 50 0001 C CNN
|
||||
F 3 "" H 1500 3900 50 0001 C CNN
|
||||
1 1500 3900
|
||||
|
|
@ -1338,22 +1338,22 @@ F 3 "~" H 900 5250 50 0001 C CNN
|
|||
1 0 0 -1
|
||||
$EndComp
|
||||
$Comp
|
||||
L power:GNDREF #PWR010
|
||||
L power:GND #PWR010
|
||||
U 1 1 5FC56406
|
||||
P 900 5400
|
||||
F 0 "#PWR010" H 900 5150 50 0001 C CNN
|
||||
F 1 "GNDREF" H 905 5227 50 0000 C CNN
|
||||
F 1 "GND" H 905 5227 50 0000 C CNN
|
||||
F 2 "" H 900 5400 50 0001 C CNN
|
||||
F 3 "" H 900 5400 50 0001 C CNN
|
||||
1 900 5400
|
||||
1 0 0 -1
|
||||
$EndComp
|
||||
$Comp
|
||||
L power:GNDREF #PWR011
|
||||
L power:GND #PWR011
|
||||
U 1 1 5FC5640C
|
||||
P 1500 5400
|
||||
F 0 "#PWR011" H 1500 5150 50 0001 C CNN
|
||||
F 1 "GNDREF" H 1505 5227 50 0000 C CNN
|
||||
F 1 "GND" H 1505 5227 50 0000 C CNN
|
||||
F 2 "" H 1500 5400 50 0001 C CNN
|
||||
F 3 "" H 1500 5400 50 0001 C CNN
|
||||
1 1500 5400
|
||||
|
|
@ -1381,26 +1381,26 @@ Wire Wire Line
|
|||
900 3400 900 3500
|
||||
Connection ~ 900 3500
|
||||
$Comp
|
||||
L power:GNDREF #PWR0101
|
||||
L power:GND #PWR0101
|
||||
U 1 1 5FCA9B50
|
||||
P 5000 8750
|
||||
AR Path="/5FCA9B50" Ref="#PWR0101" Part="1"
|
||||
AR Path="/5FA7BAE6/5FCA9B50" Ref="#PWR?" Part="1"
|
||||
F 0 "#PWR0101" H 5000 8500 50 0001 C CNN
|
||||
F 1 "GNDREF" H 5005 8577 50 0000 C CNN
|
||||
F 1 "GND" H 5005 8577 50 0000 C CNN
|
||||
F 2 "" H 5000 8750 50 0001 C CNN
|
||||
F 3 "" H 5000 8750 50 0001 C CNN
|
||||
1 5000 8750
|
||||
1 0 0 -1
|
||||
$EndComp
|
||||
$Comp
|
||||
L power:GNDREF #PWR0102
|
||||
L power:GND #PWR0102
|
||||
U 1 1 5FCEE917
|
||||
P 2050 7500
|
||||
AR Path="/5FCEE917" Ref="#PWR0102" Part="1"
|
||||
AR Path="/5FA7BAE6/5FCEE917" Ref="#PWR?" Part="1"
|
||||
F 0 "#PWR0102" H 2050 7250 50 0001 C CNN
|
||||
F 1 "GNDREF" H 2055 7327 50 0000 C CNN
|
||||
F 1 "GND" H 2055 7327 50 0000 C CNN
|
||||
F 2 "" H 2050 7500 50 0001 C CNN
|
||||
F 3 "" H 2050 7500 50 0001 C CNN
|
||||
1 2050 7500
|
||||
|
|
@ -1493,11 +1493,11 @@ Wire Wire Line
|
|||
Text Notes 6050 900 0 50 ~ 0
|
||||
TODO: Better use 5V?\nrd: 2.3 V (390R @15V)\ngn: 2.4 V (390R @15V)\nye: 2.6 V (390R @15V)
|
||||
$Comp
|
||||
L power:GNDREF #PWR013
|
||||
L power:GND #PWR013
|
||||
U 1 1 5FABEB24
|
||||
P 1600 1200
|
||||
F 0 "#PWR013" H 1600 950 50 0001 C CNN
|
||||
F 1 "GNDREF" H 1605 1027 50 0000 C CNN
|
||||
F 1 "GND" H 1605 1027 50 0000 C CNN
|
||||
F 2 "" H 1600 1200 50 0001 C CNN
|
||||
F 3 "" H 1600 1200 50 0001 C CNN
|
||||
1 1600 1200
|
||||
|
|
|
|||
BIN
vu_meter.pdf
BIN
vu_meter.pdf
Binary file not shown.
Reference in a new issue