JQ8900-16P Voice Broadcast Audio MP3 Playback Module

JQ8900-16P Voice Broadcast Audio MP3 Playback Module is an intelligent serial audio sound playback board equipped with an integrated 32M-bit (4MB) onboard SPI flash storage and a built-in 3W Class-D mono speaker amplifier. Supporting MP3 and WAV hardware decoding, it can be controlled via standard 2-wire UART serial commands, 1-wire serial protocol, or direct hardware push-button triggers, making it an ideal voice prompt engine for automated equipment, elevators, navigation prompts, and security alert systems.

Key Features:

• Onboard 4MB SPI Flash Memory: Stores high-fidelity MP3 and WAV voice prompts directly without requiring external SD cards.
• Integrated 3W Class D Power Amplifier: Directly drives standard 4Ω or 8Ω speakers up to 3 Watts with crisp audio volume.
• Direct Micro USB Sound Copying: Connects to PC via Micro USB, mounting as a virtual flash drive for drag-and-drop audio file updates.
• Multi-Mode Control Interfaces: Operates via UART serial AT commands, 1-wire serial control, or 5 direct trigger button pins.
• 30-Level Digital Volume Adjustment: Precision volume attenuation controllable via serial bus or hardware buttons.
• DAC Audio Line Out: Provides clean analog line-level audio outputs for driving external high-power audio amplifiers.

Technical Specifications:

• Operating Voltage: 3.3V to 5.2V DC (5.0V recommended for full 3W speaker drive)
• Internal Flash Storage: 32 Megabits (4 Megabytes onboard SPI flash)
• Audio Decoding Formats: MP3 (8-320 kbps), WAV (8-48 kHz sampling rate)
• Amplifier Output: 3W into 4Ω load (at 5V VCC)
• Quiescent Current: ~15 mA (standby); up to 500 mA (at peak volume)
• Serial Baud Rate: 9600 bps (default 8-N-1 UART)
• Operating Temperature: -40°C to +85°C

Mechanical Specifications:

• PCB Structure: Double-sided through-hole FR-4 circuit board
• Package: Standard 16-Pin DIP (2.54mm pitch) layout
• USB Connector: Onboard Micro USB Type-B female port
• Weight: Approximately 7 grams

Dimensions:

• Length: 21.0 mm
• Width: 18.0 mm
• Height: 4.5 mm

Pinout and Wiring:

• VCC: 3.3V to 5.2V DC Main Power Supply Input
• GND: Power and Signal Ground (0V)
• SPK+ / SPK-: Differential BTL Audio Output to Speaker
• TX: UART Serial Transmit (to MCU RX)
• RX: UART Serial Receive (to MCU TX)
• DACR / DACL: Stereo Line-Level Audio Outputs
• IO1 – IO5: Direct ground-triggered key inputs for tracks 1-5
• BUSY: Audio playback busy indicator (High during playback)

Datasheet Reference:

• Datasheet Reference: Consult JQ8900-16P Serial Voice Module Technical Manual and UART Command Set Guide.

Commonly Used in:

• Elevator voice arrival announcements and industrial safety alarms
• Automated vending machines and interactive ticket kiosk prompt speakers
• Smart home greeting systems and intrusion voice warning sirens
• Medical and scientific instrument voice guidance interfaces

Applications:

• Microcontroller-triggered spoken voice alerts via UART serial commands
• Direct button-activated sound effect boxes for escape rooms and toys
• Queue management counter number announcement systems
• Automotive blind-spot and reversing obstacle voice alerts

Equivalent Models:

• DY-SV17F Voice Playback Module
• DFPlayer Mini MP3 Module
• JQ6500 Voice Sound Module

Package Includes:

• 1 × JQ8900-16P Voice Broadcast Audio MP3 Playback Module