Bluetooth Audio Amplifier PCBA Board
| A Bluetooth audio amplifier module | typically 4 layers, ~260 components, prototype build. RF coexistence with the audio path is the issue. |
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Customer requirement
A Bluetooth audio amplifier module: typically 4 layers, ~260 components, prototype build. RF coexistence with the audio path is the issue.
Manufacturing challenge
- Bluetooth RF and audio analog share the board, risking interference.
- Antenna feed and matching must be preserved in assembly.
- FCT covers audio output and RF link quality.
Solution
Kilandu runs this board through a controlled NPI-to-production flow rather than a one-shot build:
- DFM: footprint, stack-up and test-point review is completed and fed back before any parts are ordered.
- Sourcing: turnkey procurement of the BOM, with qualified alternates managed for long-lead and obsolete parts.
- SMT: high-speed SMT lines with inline SPI, AOI and X-ray on BGA, voiding and hidden joints.
- Assembly: selective DIP for through-hole content and, where required, conformal coating.
- Test: ICT for net integrity, then FCT for the board-specific functions above.
X-ray on RF/BGA parts; FCT included RF link and audio test.
Result
First-article inspection to IPC-A-610 Class 2/3 is completed, a golden sample is retained as the release baseline, and a pilot run is signed off before mass production. Per-batch traceability (lot, AOI/X-ray records and ICT/FCT logs) is kept. Order quantities and the customer's specific acceptance result are confirmed per project.
Why Kilandu for turnkey PCBA and PCB
Turnkey, one factory
Gerber and BOM in, tested boards out: component sourcing, SMT, DIP, box-build and functional test under one roof in Shenzhen.
Production capacity
Line count, placement equipment and monthly capacity are documented on the factory capabilities page.
Quality system
Certificates, inspection stages and lot traceability are documented on the quality assurance page.
Markets and lead time
We supply OEM customers across Europe, Russia and the Americas; typical turnkey lead time is 2 to 5 weeks, depending on BOM complexity and component availability.
Frequently asked questions
What exactly does Kilandu deliver for a custom PCBA project?
A turnkey service: we source the full bill of materials, fabricate the PCB, run SMT and DIP assembly, and finish with AOI, inspection and functional testing, so you receive tested, ready-to-install boards from one factory.
Which quality standards is the factory certified for?
Production follows IPC-A-610 Class 2/3 workmanship under a certified quality system, with RoHS and REACH compliant processes. The certificates and what each one covers are listed on the quality assurance page.
Which markets do you serve and how fast can you deliver?
We supply OEM customers across Europe, Russia and the Americas from our factory in Shenzhen, China, with typical turnkey lead times of 2 to 5 weeks depending on BOM complexity and volume.
