Description
1. Overview
BY8301-24QS is a new high-quality plug-in MP3 main control chip independently developed by Shenzhen Baiwei Electronic Technology Co., Ltd. It supports dual decoding of MP3 and WAV formats . You can connect SD/TF card to replace the voice content; you can also connect an external U disk or USB data cable to the computer to replace the SD/TF content . Support 15 -way button one-to-one trigger playback, there are 8 trigger modes to choose from, which is more convenient to use.
2. Product Features
l Support MP3 , WAV high-quality audio format files, beautiful sound.
l 24 -bit DAC output, dynamic range supports 90dB , signal-to-noise ratio supports 85dB .
l Support 15 segments of voice one-to-one trigger playback, 3 IO port hardware to choose 8 trigger modes, more widely used.
l Support UART asynchronous serial port control: support play, pause, up and down songs, volume addition and subtraction, song selection playback, advertisement insertion, etc.
l SD/TF card can be inserted to replace the voice content, and the maximum support 32G memory card.
l Support reading U disk, up to 32G ; you can also directly replace the contents of the TF through the USB data cable .
l Package: SSOP24 .
3. Technical Specifications
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name
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parameter
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MP3 , WAV file format
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Support sampling rate 8 ~ 48K , bit rate 8 ~ 320Kbps audio files
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UART interface
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Standard serial port, 3.3V TTL level , baud rate 9600
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Input voltage
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3.6V-5V (recommended value 4.2V )
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Quiescent Current
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10MA
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Operating temperature
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-40 ℃～70 ℃
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humidity
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5% to 95%
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4. Chip pin diagram
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pin number
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pin name
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Function description
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Remark
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1
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DACL
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DAC left channel output
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External headphone and power amplifier
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2
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DACR
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DAC right channel output
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3
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VCCIO
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Internal LDO 3.3V output
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Can supply power to TF card and 24C02
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4
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LDO5V
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Positive power supply
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3.6-5V
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5
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