Control & Amplification Board
AssemblyAudio processing, Bluetooth radio, and dual-channel bone conduction amplifier. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Control & Amplification Board parts and their functions
6 top-level parts · 8 parts in total · full bill of materials below
| # | Part | Qty | What it does |
|---|---|---|---|
| 1 | Bare PCB | 1× | Unpopulated printed circuit board: copper traces etched on an FR-4 glass-epoxy laminate that carry current between the components later soldered to it. |
| 2 | Microcontroller | 1× | Single-chip microcontroller combining a processor core, flash memory, RAM, and peripherals such as timers, ADCs, and serial ports to run the device's control firmware. |
| 3 | Bluetooth 5.1 Module | 1× | Integrated transceiver with antenna supporting stereo audio (A2DP) and voice calls (HFP). |
| 4 | Audio Codec IC | 1× | Stereo audio processor with digital EQ filtering for frequency shaping. |
| 5 | Dual Class-D Amplifier | 1× | Two independent channels, 1.5 W each, driving left and right transducers. |
| 6 | Connector | 3× | Mating plug-and-socket pair that joins two lengths of wiring or a cable to a board so a circuit can be assembled, serviced, and separated without soldering. |
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Build & assembly graph
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Bill of materials for Control & Amplification Board
6 top-level lines · 6 rows shown · 8 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Bare PCB | pcb-bare | 1× | 1 | · | part |
| 2 | Microcontroller | mcu | 1× | 1 | · | part |
| 3 | Bluetooth 5.1 Module | bone-conduction-headphones-bt-radio | 1× | 1 | · | part |
| 4 | Audio Codec IC | bone-conduction-headphones-audio-codec | 1× | 1 | · | part |
| 5 | Dual Class-D Amplifier | bone-conduction-headphones-dual-amp | 1× | 1 | · | part |
| 6 | Connector | connector | 3× | 3 | · | part |
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Where the control & amplification board is used
1 product across 1 domain contain it, directly or inside a sub-assemblyUsed in 1 assembly
Sourcing: possible vendors
Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $1–$200. How estimates work| Vendor | HQ | Specialty | MOQ | Lead time |
|---|---|---|---|---|
|
🇨🇳JLCPCB
jlcpcb.com ↗
|
Shenzhen, CN | PCB fabrication | 100 pcs | 2–4 wks |
|
🇨🇳PCBWay
pcbway.com ↗
|
Shenzhen, CN | PCB fab & assembly | 100 pcs | 2–4 wks |
| scc.com.cn ↗ | Shenzhen, CN | PCB manufacturer | 100 pcs | 2–4 wks |
| shogini.com ↗ | Mumbai, IN | PCB manufacturer | 100 pcs | 2–4 wks |
| venture.com.sg ↗ | Singapore | Electronics contract mfg | 100 pcs | 2–4 wks |