UART I/O Decoding Voice IC Chip

Product Item : QJ007-24SS
Category： MP3 Sound IC & Module
MP3, WAV File Format: Support rates 8~44.1K and 8~320kbps audio decoding
Input Voltage: DC 3.3V~5V
Work Temperature: -10~65 ℃
24-bit DAC output
INQUIRY EMAIL

QJ007 is an MP3 chip with a serial port for MP3 and MAV decoding which supports USB / SD/TF FLASH drive, FAT16, and FAT32 file system. We can playback the specified music with simple serial command, and simply switch audio playback mode, no need for the cumbersome bottom operation. Besides, it can directly play USB / SD/TF FLASH internal songs or download, easy and convenient.

Its stability and simple operation are the biggest advantages of this chip, is widely used for fixed voice playback field development at a low cost. It would be your optimal choice for the engineer working with various audio files.

Features

1. Support sample rate(KHz): 8/11 .025 / 12/16 / 22 .025 / 32/44 .1 / 48.
2. 24-bit DAC output, dynamic range support 90dB, SNR support 85 dB.
3. Fully support FAT16, FAT32 file system, maximum support128Mbit FLASH, 32G TF/SD, 32G U disk.
4. 7 control modes, parallel port control, 9600 baud rate UART control.
5. Updating voice files by micro USB interface, without installing any software. Supports XP and Windows 7 systems.
6. 7 IO corresponding to one-to-one voice playback, up to 10 channels can be formed (support customization which can make more than 30 channels).
7. Chip DAC output can be directly connected to headphones or an external power amplifier, power amplifier unlimited.
8. Support song selection, folder loop, random play, combination play, song insertion and so on.
9. Supports 3.3-5V input.

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	DC 3.3 V-5 V Best 4.2 V
Dormant current	15uA
Amplifier power	External power amplifier or headphones
Size	0.8 * 1CM
Working temperature	-20 ~ 70 degrees
Humidity	5 % ~ 95 %

Recordable Serial Port Control SOP24 Decoding Chip Music IC

PIN Number	PIN Name	Type	Function Description
1	DACL	AO	Module sound source left channel output-external amplifier
2	DACR	AO	Module sound source right channel output-external amplifier
3	VDDIO	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
4	VDD	IO	Power input voltage positive pole
5	VSS	IO	GND
6	TXD	IO	External MCU TXD level is 3.3 V attention match
7	RXD	-	External MCU RXD level is 3.3 V attention match
8	NC	-	-
9	SPICS	IO	FLASH--CS
10	DAT	-	-
11	SPIDO	IO	FLASH--DAT
12	SPISCK	POWER	FLASH--CLK
13	NC	-	-
14	NC	-	-
15	NC	-	-
16	BUSY	-	When BUSY plays, it's low, usually high.
17	SDCLK		TF/SD --CLK
18	SDCMD		TF/SD---CS
19	SDDAT		TF/SD---DAT
20	USBDM	IO	USB Data Line DM
21	USBDP	IO	USB Data Line DP
22	NC	-	-
23	VCOM	-	-
24	DACVSS	SGND	SGND

Command

Function	Sent Instruction	Notes
Power initialization returns online device parameters	7E 03 3F 02 EF	TF/SD Online
	7E 03 3F 01 EF	USB Online
	7E 03 3F 04 EF	FLASH online
	7E 03 3F 09 EF	USB, FLASH online
	7E 03 3F 0D EF	USB, TF/SD,FLASH online
Track automatically returns parameters after playback	7E 04 3D XX XX EF	Return parameter after TF/SD track is played---XXis the voice file address currently played
	7E 04 3C XX XX EF	Return parameter after playback of USB track--XXis the voice file address currently played
No more breaks	7E 02 0F EF	Effective on all incoming calls.
Specify multi-folder tracks	7E 04 43 02 0A EF	Play Folder 02, 00A song.
Specify Track Index Address to Play	7E 04 41 00 01 EF	Play the track of the first address of the physical address of the storage device
Volume Settings	7E 03 31 1E EF	Volume range value -(0-1E)
To play with volume(set the volume at the same time)	7E 04 31 1E 0A EF	Set volume to 1E while playing track A
Specify folder to play randomly	7E 04 34 02 01 EF	Play the tracks in folder 01 randomly
Specify random loop of all tracks in the device root	7E 02 36 EF
Specify folder tracks to play in loop	7E 04 42 02 0A EF	Play Play 02 Folder 00A Track
Specify the sequence of tracks in the folder	7E 04 34 03 01 EF	Specify Track Sequencing in Folder 01
Group Play	7E 06 45 01 01 02 02 03 03 EF	Specify 01 Folder 001 Track, 02 Folder 002 Track, 03 Folder 003 Track Combination Play
Track Play Mode Settings	7E 03 33 00 EF	Root directory loop
	7E 04 33 00 01 EF	Single cycle Cycling the first track
	7E 04 33 00 05 EF	Single cycle Cycling the fifth track
	7E 03 33 01 EF	Single play
Switch Play Device(Priority: USB -- TF/SD---FLASH)	7E 03 35 00 EF	Switch to USB
	7E 03 35 01 EF	Switch to TF/SD
	7E 03 35 04 EF	Switch to FLASH
Query current playback status	7E 02 10 EF	7E 03 10 00 EF 7E 02 00 EF
Query Current Volume	7E 02 11 EF	7E 03 11 00 EF 7E 02 00 EF range(0-1E)
Total number of USB files	7E 02 16 EF	7E 04 16 00 00 EF 7E 02 00 EF range (0-65536)
Total number of TF/SD files	7E 02 15 EF	7E 04 15 00 00 EF 7E 02 00 EF range (0-65536)
Total number of FLASH files	7E 02 17 EF	7E 04 17 00 00 EF 7E 02 00 EF range (0-65536)
Search devices online	7E 02 18 EF	7E 03 18 00 EF 7E 02 00 EF 0: USB,1: TF,4: SPI
Query the physical address of the current track played by USB	7E 02 1A EF	7E 04 1A 00 00 EF 7E 02 00 EF range(0-65536)
Query the physical address of the current track played by TF/SD	7E 02 19 EF	7E 04 19 00 00 EF 7E 02 00 EF range(0-65536)
Query the physical address of the current track played by FALSH	7E 02 1B EF	7E 04 1B 00 00 EF 7E 02 00 EF range (0-65536)
Query when the current song is played	7E 02 1C EF	7E 04 1C 00 00 EF 7E 02 00 EF
Query on the total time currently played	7E 02 1D EF	7E 04 1D 00 00 EF 7E 02 00 EF

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

Electrical characteristics

Name	Function	Min	Typical	Max	Unit	Condition
VDD50	LDOInput Voltage	3.2	5	5.5	V	-
VDD33	LDO 3.3V Output Current	-	-	200	mA	Vout3.3> 3.1V
SNR	SNR	-	85	-	dB	-
THD+N	Total harmonic distortion	-	-70	-	dB	idling
PWRAB	DACOutput Power	-	-	16	mW
VPP	DACMaximum output amplitude voltage	-	-	1	V	AC
Ps1	Standby power consumption（No TFcard）	11	11.5	12	mA
P	Power consumption on playback(empty)	35.6	-	-	mA	Related to TF card power