Share on (1600913831840):
QJ008 is an MP3 chip with a serial port, perfect integration of MP3, and WAV hard decoding. Meanwhile, it supports USB / FLASH drive, and FAT16, FAT32 file system. Simple serial port instructions can complete the specified music, as well as how to play music and other functions, without complicated low-level operations. Besides, This chip can directly play USB/FLASH internal songs, or download to FLASH by USB. Simple operation and stability are its advantages.
In addition, the chip also supports a variety of customization, which is designed to provide lower-cost solutions for the development of USB card readers and fixed voice playback.
Functions
1. Support sample rate(KHz): 8/11 .025 / 12/16 / 22 .025 / 32/44 .1.
2. 24-bit DAC output, dynamic range support 90dB, SNR support 85 dB.
3. Fully support FAT16, FAT32 file system, maximum support 128M FLASH, 32G U disk.
4. Multiple control modes, serial mode.
5. Radio language insertion function, you can pause the background music that is playing.
6. Audio data is sorted by folder, up to 255 folders are supported, and each folder can be assigned 1000 songs.
7. There are 30 volumes to adjust, level 5 EQ adjustable, Connected computers can display drive letters for update and download.
8. You can control and play the specified music through the MCU serial port.
Hardware parameters
| Name | Parameters | |||
| File Format | 1. Support to play WAV files | |||
| 2. Support to play MP3 files | ||||
| 3. Support Normal, Jazz, Class, Pop, Rock and so on | ||||
| USB Interface | 2.0 Standard | |||
| Input voltage | 3.3 V-5 V Best 4.2 V | |||
| Dormant current | 15uA | |||
| Size | 0.8 * 1CM | |||
| Working temperature | -40 ~ 70 degrees | |||
| Humidity | 5 % ~ 95 % | |||



| PIN Number | PIN Name | Type | Function Description | |||
| 1 | P01 | IO | FLASH---DAT | |||
| 2 | P00 | IO | FLASH---CLK | |||
| 3 | P32 | IO | FLASH --CS | |||
| 4 | BUSY | IO | Chip working status indicator, output low level when playing | |||
| 5 | USBDM | IO | USB Data Line DM | |||
| 6 | USBDP | IO | USB Data Line DP | |||
| 7 | VCOM | - | - | |||
| 8 | DACVSS | AGND | AGND | |||
| 9 | DACR | AO | Module sound source right channel output-external amplifier | |||
| 10 | DACL | AO | Module sound source left channel output-external amplifier | |||
| 11 | VDD33 | IO | LDO Output 3.3 V -- This voltage is the internal voltage of the chip and can not be supplied to MCU and other devices | |||
| 12 | LDO5V | POWER | Power input voltage positive pole | |||
| 13 | VSSIO | SGND | SGND | |||
| 14 | P23/24 | IO | External MCU RXD level is 3.3 V attention match | |||
| 15 | P30/P25 | IO | External MCU TXD level is 3.3 V attention match | |||
| 16 | P46/VPP | - | NC | |||
Simple command
| Function | Reback | Command Format | |
| PLAY | 7E 02 00 EF | 7E 02 01 EF | |
| PAUSE | 7E 02 00 EF | 7E 02 02 EF | |
| NEXT | 7E 02 00 EF | 7E 02 03 EF | |
| PREV | 7E 02 00 EF | 7E 02 04 EF | |
| VOL+ | 7E 02 00 EF | 7E 02 05 EF | |
| VOL- | 7E 02 00 EF | 7E 02 06 EF | |
| Fast forward | 7E 02 00 EF | 7E 02 0A EF | |
| Get back | 7E 02 00 EF | 7E 02 0B EF | |
| PLAY/PAUE | 7E 02 00 EF | 7E 02 0C EF | |
| STOP | 7E 02 00 EF | 7E 02 0E EF | |
Application circuits






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Q3. What are your terms of delivery?
A: EXW, FOB, CFR, CIF.
Q4. How about your delivery time?
A: Generally, it will take 2~25 working days after receiving your advance payment. The specific delivery time depends on the items
and the quantity of your order.
Q5. Can you produce according to the samples?
A: Yes, we can produce your samples or technical drawings. We can build the moulds and fixtures.
Q6. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but customers have to pay the sample cost and the courier cost.
Q7. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery.
Q8. What are your terms of packing?
A: Generally, we pack our goods in white boxes and brown cartons. If you have a legally registered patent, we can pack the goods in
your branded boxes after getting your authorization letters. We'll show you the photos of the products and packages.
Q9: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive prices to ensure our customers benefit;
2. We respect every customer and we sincerely do business no matter where they come from.
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