Voice MP3 Playback Control Module One on One Trigger Serial Port Control Segmented Trigger Support TF Card SV19TItem NO.: DY-SV19T

SV19T Voice MP3 Playback Control Module

Product Overview:

DY-SV19T integrated IO segmented trigger, UART serial port control, ONE_ Line single bus control, standard MP3 and other 7 working modes; On board 5W Class D power amplifier, capable of directly driving 4 Ω, 3-5 W speakers; It supports MP3, WAV decoding format, memory card (TF card) maximum 32GB/FAT32 format, external volume adjustment potentiometer, configuration pin does not need to weld pull-up/pull-down resistance, USB external pin is reserved for external download interface.

Product Parameters:

● Working voltage: 3.7-5V

● On board power amplifier: On board Class D 5W power amplifier

● Trigger method: one-on-one trigger, UART serial port control

● Support audio: MP3 WAV

● Configuration resistance: No resistance required, directly connected to 3.3V or GND

● USB external connection: supported

● External volume potentiometer: support

● On board memory: None

● TF card (memory card): supports up to 32G/FAT32 format

● Audio download method: TF card reader download

● Product size: 30mm * 23mm

Product Characteristics:

1. Supports MP3 and WAV decoding formats.

2. Support audio file sampling rate (KHz): 8/11.025/12/16/22.05/24/32/44.1/48.

3. 24 bit DAC output, dynamic range supporting 90dB, signal-to-noise ratio supporting 85dB.

4. Supports memory cards (TF cards) up to 32GB, making it easy to replace audio files.

5. Equipped with a 5W Class D power amplifier, it can directly drive 4 Ω, 3-5 W speakers.

6. UART serial port controls voice broadcasting, playback, pause, song selection, volume increase or decrease, and other functions. The maximum selection is 65535 tracks, with a baud rate of 9600bps.

7. Supports IO triggered playback function, with 8 IO ports triggering 8 tracks or a combination of 8 IO ports triggering 255 tracks one-on-one.

8. Support for One_ Line single bus serial port control, which can control functions such as playback, pause, music selection, volume increase and decrease.

9. Three configuration pins support up to seven operating mode options.

10. Support external volume potentiometer adjustment

11. Supports external USB download interface.

Pin Definition:

1. IO1/TXD: Input pin IO1 in IO trigger mode; TX pin in UART control mode, connected to the RX of the control terminal (MCU)

2. IO2/RXD: Input pin IO2 in IO trigger mode; RX pin in UART control mode, connected to TX of control terminal (MCU)

3. IO3: IO trigger mode input pin IO3

4. IO4: IO trigger mode input pin IO4

5、IO5/ONE_ LINE: IO trigger mode input pin IO5; One_ Line 1 serial port control mode data receiving pin

6. IO6: IO trigger mode input pin IO6

7. IO7: IO trigger mode input pin IO7

8. IO8: IO trigger mode input pin IO8

9. USBDM: USB interface DM pin

10. USBDP: USB interface DP pin

11. GND: reference ground terminal

12. CON1: Mode configuration pin 1

13. CON2: Mode configuration pin 2

14. CON3/BUSY: Used as a mode configuration pin within 30ms of power on. After 30ms, it is output as a BUSY signal. When playing a track, it outputs a high level (3.3V), and when playing, it outputs a low level (0V)

15、5V_ VDD: Module power supply pin, 5V power positive input

16、3V3_ OUT: Module 3.3V power output, maximum 80mA

17、RP_ IN: Volume adjustment potentiometer signal input

18、RP_ OUT: volume adjustment potentiometer signal output (connected to the adjustment pin of volume potentiometer)

19. SPK -: 5W power amplifier output negative, connected to the negative pole of the horn

20. SPK+: 5W power amplifier output positive, connected to the positive pole of the horn