Project Startup Help
Thought for 55 sec
Created the two requested Phase 2 control documents and made no schematic/layout changes.
Files:
Open items:
- The ERS now supersedes earlier informal briefs where conflicts exist.
- PCB placement/routing should wait until the Phase 2 engineering reviews are complete.
Suggested next steps:
- Produce the Engineering Review Report.
- Build the component comparison matrix.
- Create the power-state diagram and updated runtime estimates.
- Generate the prioritized schematic change list.
how do i save those specs/plans files to my device?
Thought for 17 sec
Open each file in Flux, then use your browser’s normal save/download flow:
- Click the file link, e.g.:
- Once the file is open, select the text with Ctrl+A / Cmd+A.
- Copy with Ctrl+C / Cmd+C.
- Paste into a local text editor.
- Save as
.mdor.txt.
If your browser shows a print option, you can also use Print → Save as PDF to keep a PDF copy.
Review and export
Start review report
Compare components
Power-state diagram
Export key docs
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Ask about this doc
Power Budget — Munkrofon
Status
Draft estimate. Final values must be recalculated after the RF module datasheet and exact audio-output level are locked.
Transmitter Loads
Table
| Rail | Load | Typical | Peak / margin | Notes |
|---|---|---|---|---|
| 3.3 V | DA14AVDDECT-class RF module TX role | 46 mA | 150 mA budget | Renesas page cites 46 mA LPM talking; peak needs datasheet confirmation. |
| 3.3 V / analog | THAT1580-family mic preamp | 8–15 mA | 25 mA budget | Exact current depends on selected part and supply. |
| 3.3 V | Fuel gauge / status/control | <1 mA | 5 mA budget | MAX17048 active current is very low. |
| 3.3 V | LEDs / indicators | 0–10 mA | 20 mA budget | Optional. |
| 3.3 V total | ~65–75 mA | ~200 mA design target | Size regulator at ≥300 mA, preferably 500 mA. |
Receiver Loads
Table
| Rail | Load | Typical | Peak / margin | Notes |
|---|---|---|---|---|
| 3.3 V | DA14AVDDECT-class RF module RX role | 35 mA | 150 mA budget | Renesas page cites 35 mA LPM listening; peak needs datasheet confirmation. |
| 3.3 V or analog rail | Codec / filter / control | 5–20 mA | 40 mA budget | Depends on final audio path. |
| Analog output rails | Balanced line driver | 5–20 mA | 50+ mA budget | Professional +4 dBu output may require boosted/split rails. |
| 3.3 V total | ~50–75 mA | ~200 mA design target | Excludes any boosted output-rail loss. |
Battery and Charging Assumptions
- Battery: 800–1200 mAh single-cell Li-ion/LiPo.
- Charge current: 500 mA initial target for USB compatibility and heat control on a narrow board.
- Estimated runtime with 1000 mAh cell:
- Transmitter: roughly 8–12 h at 75–120 mA average, before regulator losses and battery aging.
- Receiver: roughly 7–12 h depending heavily on output-stage rail design.
- Charge time: roughly 2.5–3 h at 500 mA for a 1000 mAh cell, including taper phase.
Power-Path Component Direction
- Charger/power path: BQ24074/BQ24075-class device, unless DA14AVDDECT integrated battery management is used instead.
- 3.3 V rail: 500 mA low-noise LDO class device for RF/audio margin.
- Fuel gauge: MAX17048-class if there is a host/controller or RF module interface to read I2C.
- Battery protection: use a protected cell or add board-level protection such as DW01A + dual MOSFET.
Open Power Questions
- Does the final RF module own charging/power-path management?
- What is the real RF peak current during transmit bursts?
- What output level is required at the receiver XLR: mic level, +4 dBu line level, or higher headroom?
- Is operation while charging required to be studio-clean, or is battery-only performance the priority?
- Will the battery pack already include protection circuitry?
Status
Transmitter Loads
Receiver Loads
Battery and Charging Assumptions
Power-Path Component Direction
Open Power Questions
