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IPJ5022 — USB Audio Playback PCBA

PCBA DESIGN · OEM / ODM

IPJ5022 integrates an audio controller, USB Type-C port, pushbutton and speaker for sound prompts and voice announcements. Import audio into IPJ5022 Audio Studio, set playback options, program over USB and power-cycle to test. Playback can be controlled by the button or an external controller over UART. The photographed board is marked IPJ5001 V1.0; the supplied model and storage variant follow the order and actual hardware.

USB Type-C | Button + UART 9600 bps | BUSY Output | Custom Audio

IPJ5022 — USB Audio Playback PCBA

Hardware & Audio Programming

Key Features

  • Import WAV / MP3 files with Windows software for conversion and USB programming
  • Short press: next track; hold about 1 second: stop playback
  • UART commands for track selection, stop, volume, status, next track and track count
  • Active-low BUSY output: low while playing, high when idle
  • Configurable default volume and startup playback: off, once or loop
  • Internal storage and optional external SPI Flash configurations

Technical Specifications

Technical Specifications
Power / connectorUSB Type-C or P1 5V (VBAT); use one supply unless isolated
P1 interface5V / TX / RX / A0 / GND; cross-connect UART TX/RX and share ground
UART9600 bps, 8N1; fixed EF trailer firmware, no CR/LF
Playback controlTrack 1–999, limited by packaged files; UART volume 0–31; status returned on request
BUSYA0 / PA0: low during playback; high when idle, stopped, finished or after decoding error
PC softwareIPJ5022 Audio Studio, Windows 10/11 x64; board requires initial firmware and a USB data cable
Audio programmingDefault: mono F1A, 16 kHz / 16 kbps; updates firmware and audio, not USB-drive file copying
Internal storage512 KiB Flash; current firmware audio budget 320 KiB
External storageSPI Flash up to 128 Mb (16 MiB) with matching configuration; current tool option: 2 MiB, audio budget 1856 KiB
Speaker / mechanicsSchematic: 8 Ω, 0.5 W speaker, not rated module output; dimensions from engineering files. Neither SPK+ nor SPK− connects to ground.

Customization & Integration

Discuss audio duration and file count, playback order, startup behavior, controller interface, storage and enclosure needs. Keep the speaker outlet, USB access and button travel clear. Confirm firmware, accessories, quantity and sample acceptance in the order. USB VBUS and P1 5V are directly connected: use one supply or provide isolation. TX, RX and A0 use VDDIO logic; the 5V marking does not mean 5 V signal tolerance. Use compatible levels and do not connect RS-232 directly.

Applications

  • Equipment sound prompts and voice announcements
  • Interactive toys and custom sound products
  • Embedded audio prototypes and OEM/ODM product integration

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