IR Receiver Wiring Fixes
1:34
Interpreting wiring queries.
Analyzing IR_REC_2 wiring.
Proposing wiring fixes.
Assessing IR_REC_2 wiring.
Here’s how IR_REC_2 is wired right now:
Table
| Pin | Connection |
|---|---|
| Vs (pin 3) | Direct to +5 V with COMP_FILTER3 (Generic capacitor) |
| GND (pin 2) | Ground rail |
| OUT (pin 1) | Series R_PASS3 (10 kΩ) into the summing node; no shunt cap to ground |
Is this correct for converting the digital pulses into an analog level? No:
- You need a proper RC low-pass on the OUT pin:
• Series resistor (e.g. 4.7 kΩ or your existing 10 kΩ)
• Then a shunt capacitor (e.g. 100 nF) to ground at the node after the resistor - You also should decouple Vs with a dedicated 100 nF cap as close as possible to the receiver, in parallel with [COMP_FILTER3].
Recommended per-receiver changes:
- Add a 100 nF Capacitor from Vs to GND.
- Keep or adjust your series resistor on OUT (e.g. R_PASS3).
- Add a 100 nF Capacitor from the node after that resistor to GND.
Would you like to apply these fixes to IR_REC_2 (and across all receivers)?
Replicate filter
Find decoupling cap
Select series resistor
Cap placement rules
218 days
To get started, talk to Flux or create a New Document.
Welcome 👋
Flux helps you build PCBs faster with an AI teammate!
Create your account to collaborate, stay updated, fork your own version, and get instant answers from our AI agent.
