Yes. You don’t need to draw one big ground wire. Just place the Ground symbol wherever a node should be on GND; they are all the same GND net.
If you want multiple, separate grounds (e.g., analog vs digital), create additional ground nets using a portal-with-ground-symbol for each secondary ground and use those where needed.
What Flux documentation says:
"In Flux, working with a single ground is very straightforward. Add a standard ground symbol to your schematic and simply wire it up. Flux will then take care creating a ground plane for you.
Working with multiple grounds is also straightforward in Flux, but simply requires adding a portal with a ground symbol for additional secondary grounds." Source
If you tell me whether you want a single GND or distinct grounds (AGND/DGND), I can help you set it up accordingly.
Well, this circuit is entirely analog, so I think that will simplify things. I don’t care how many ground symbols there are, just that the power supply and the rest of the circuit are visually connected via said grounds for aesthetic purposes.
Yes—use a single GND net and place as many ground symbols as you like for clarity. Every Ground symbol belongs to the same net, so the supply ground and the rest of the analog circuit are logically connected without drawing one long wire.
What Flux documentation says:
"In Flux, working with a single ground is very straightforward. Add a standard ground symbol to your schematic and simply wire it up. Flux will then take care creating a ground plane for you.
Working with multiple grounds is also straightforward in Flux, but simply requires adding a portal with a ground symbol for additional secondary grounds." Source
If you ever decide to show named connections instead of wires, you can also use Net Portal labels with the name “GND” for the same effect.
In the context of your guitar pedal template, SW2 is a 3PDT (triple pole double throw) switch. A 3PDT switch is commonly used in guitar pedals to toggle between the effect circuit and a bypass, allowing the signal to pass through the pedal circuitry or to bypass it and go directly to the output.
Here’s a breakdown of its function and pin connections:
Function of SW2
True Bypass Switching: This 3PDT switch allows you to toggle between direct signal pass-through (bypass) and signal processing through the pedal's effect circuit. When bypassed, the input signal goes directly to the output, preserving the original signal without any modification by the effect circuitry.
LED Control: Often, one pole of the switch is used to control an LED to indicate whether the effect is on or bypassed.
Pins and Typical Connections
The TK-6580-1 3PDT switch has six pins configured as follows:
Pins 1 & 2 (First Pole): Used to connect the input signal to either the effect circuit input or the output jack directly.
Pins 3 & 4 (Second Pole): Used to connect the output of the effect circuit to the output jack when the effect is active or to bypass it.
Pins 5 & 6 (Third Pole): Often used to control an indicator LED.
Let's review the unconnected pins or unspecified net connections for each component to determine if any might require pull-up or pull-down resistors. Here's a summary of the relevant components:
Switch inputs driving digital inputs may benefit from pull-up or pull-down resistors to define a state when open.
General Nets and Power Pins
Unconnected power pins are connected; ensure bypass caps (typically 0.1uF) are close to the ICs.
For the above scenarios, do the following:
Op-Amps: Tie unused op-amp inputs to ground or a voltage reference through a suitable resistor (like 10kΩ).
Unused Pins on MAX1044CPA+: Confirm if any adjustments using its boost and LV pins are required in your application, pulling appropriately if necessary.
Switches: Could benefit from pull-up or pull-down resistors ($1k\Omega - 10k\Omega$) to prevent floating pin issues when the switch is open.
If you provide the full context, including the type of application, we can refine these recommendations. Additionally, check any special notes in datasheets for the most up-to-date recommendations.
1y
3
R23
Resistance
4.7KΩ
R3
Resistance
100KΩ
R21
Resistance
1.8KΩ
R11
Resistance
15KΩ
R8
Resistance
500 Ω
R12
Resistance
422KΩ
R30
Resistance
27KΩ
R4
Resistance
560 Ω
R18
Resistance
12KΩ
R19
Resistance
15KΩ
R1
R3
Resistance
500 Ω
R5
Resistance
5.1KΩ
R6
Resistance
10kΩ
R17
Resistance
27KΩ
R16
Resistance
47KΩ
R29
Resistance
27KΩ
R25
Resistance
560 Ω
R20
Resistance
392KΩ
R28
Resistance
100KΩ
R243
Resistance
68KΩ
R10
Resistance
2KΩ
R8
Resistance
1.5kΩ
R15
Resistance
22KΩ
R13
Resistance
1KΩ
R7
Resistance
1.5KΩ
R24
Resistance
100KΩ
R2
R9
Resistance
1KΩ
Tl702
-8.6V
TL702
P4
+4V5
+4V5
+16.2V
+4V5
P6
U1
+16.2V
+4V5
P5
P7
+9V
+9V
-8.6V
TL702
+16.2V
OutputJack
C21 P1 - RV-GAIN_a P2
C21
Capacitance
1uF
-8.6V SRC PIN - U1 -VCC
C14
Capacitance
3.9nF
C15
Capacitance
4.7uF
CircuitOutput
U2 GND - SW1 Pin_4
C22
Capacitance
1uF
C3
Capacitance
0.1uF
C6
Capacitance
390nF
C10
Capacitance
1uF
C7
Capacitance
82nF
+9V P1 - U1 +VCC
C8
Capacitance
390pF
C9
Capacitance
1uF
C18
Capacitance
Capacitance
C5
Capacitance
68nF
C13
Capacitance
820pF
+9V P1 - U1 +VCC
CircuitInput
C19
Capacitance
1uF
-8.6V SRC PIN - U1 -VCC
C17
Capacitance
47uF
InputJack
-8.6V SRC PIN - U1 -VCC
C16
Capacitance
1uF
C11
Capacitance
2.2nF
C1
Capacitance
0.1uF
C12
Capacitance
27nF
+9V P1 - U1 +VCC
C20
Capacitance
Capacitance
C2
Capacitance
Capacitance
C4
Capacitance
68nF
Note 6
Line 1
This represents the wires that go to the 3PDT switch.
J3
J1
+9V
R9
J2
RV-GAIN_a
Resistance
100KΩ
RV-GAIN_b
Resistance
100KΩ
+9V
Note 1
Line 1
This represents the 9V power supply.
Line 2
P1: 9V
Line 3
P2: GND
J2
Note 5
Line 1
This represents the output jack.
Line 2
P1: Tip
Line 3
P2: Sleeve
RV3-LEVEL 10Kb
Package or Case Code
Package or Case Code
Note 4
Line 1
This represents the input jack.
Line 2
P1: Tip
Line 3
P2: Sleeve
D3
Manufacturer Part Number
1N34A
Capacitance
12pF
D7
Manufacturer Part Number
1N4001
SW2
D4
Manufacturer Part Number
1N4742
S1
D2
Manufacturer Part Number
1N34A
Capacitance
12pF
D8
Capacitance
12pF
U2
SW1
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Assets
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DUAL OD SCHEMATIC/TATTOO
IT'S HOOOOT
Properties
Properties describe core aspects of the project.
Pricing & Availability
Distributor
Qty 1
Arrow
$5.32–$5.79
Digi-Key
$4.96–$7.18
LCSC
$4.22–$11.46
Mouser
$5.90
Verical
$3.37–$3.76
Controls
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- True Bypass Switching: This 3PDT switch allows you to toggle between direct signal pass-through (bypass) and signal processing through the pedal's effect circuit. When bypassed, the input signal goes directly to the output, preserving the original signal without any modification by the effect circuitry.
- LED Control: Often, one pole of the switch is used to control an LED to indicate whether the effect is on or bypassed.
Pins and Typical Connections- Pins 1 & 2 (First Pole): Used to connect the input signal to either the effect circuit input or the output jack directly.
- Pins 3 & 4 (Second Pole): Used to connect the output of the effect circuit to the output jack when the effect is active or to bypass it.
- Pins 5 & 6 (Third Pole): Often used to control an indicator LED.
Specific Connections in Your Schematic