【High-Performance MP3 Voice Module】 JQ6500 supports MP3 and WMV audio decoding; 24-bit DAC output with 90dB dynamic range and 85dB signal-to-noise ratio; Suitable for voice guidance in industrial equipment and home automation systems
【5 Independent Trigger Interfaces】 K1 to K5 provide five separate audio trigger inputs; each requires at least 500ms grounding for reliable playback; compatible with microcontroller systems using UART serial communication
【Wide Operating Temperature Range】 Functioning from -40°C to +70°C; suitable for outdoor and industrial Settings; ensures stable performance in varying temperature conditions without signal distortion
【Easy Integration with Microcontrollers】 Supports UART serial port control with adjustable baud rates up to 115200; compatible with for Arduino and for Raspberry Pi; includes clear documentation for quick setup and troubleshooting
【Power Efficient and Reliable Design】 Consumes only 20mA typical current; operates on 3.2V to 5.0V DC power supply; features anti-interference layout and power isolation circuit for noise-free audio output

1. Product Parameters Parameters

Core Chip: JQ6500 (Reliable wide-temperature chip)

Input Voltage: 3.2V–5.0V DC (4.2V optimal, overvoltage may damage chip)

Rated Current: 20mA (Standby mode

Audio Decoding: MP3/WMV hard decoding (Supports 11172-3/ISO13813-3 Layer3)

Sampling Rate: 8kHz–48kHz (Supports 8/11.025/12/16/22.05/24/32/44.1/48kHz)

DAC Output: 24-bit (90dB dynamic range, 85dB SNR)

Storage Support: TF card (max 32GB, FAT16/FAT32), SPI Flash (64MB NOR Flash, PC-direct update)

Control Interface: UART serial (TTL level, baud rate 9600–115200 adjustable)

Horn Output: Direct drive 3W/4Ω or 1W/8Ω passive horn

Operating Setting: -40℃ to +70℃, humidity 5%–95%

Package: Standard DIP16 (16-pin in-line)

2. Main Pin Functions ( )

DC-5V: Power positive (3.2V–5.0V DC). Use parallel 10μF electrolytic + 0.1μF ceramic capacitor for filtering .

GND: Power ground. Must share single-point grounding with MCU (wire length ≤5cm) to avoid noise .

RX: Serial data input (connect to MCU UART_TX). Logic level 3.3V/5V TTL compatible .

TX: Serial data output (connect to MCU UART_RX). High level when idle .

BUSY: Play status indicator (high = playing, low = idle). Connect to LED or MCU interrupt .

SPK+/SPK-: Differential horn output for 4Ω–8Ω passive horn (max 3W power) .

ADC_L/ADC_R: Left/right channel linear output for headphones or external amplifier (impedance ≥10kΩ) .

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