Voice Playback Control Module One on One Trigger Serial Port Control Segmented Trigger MP3 Onboard Storage SV19RItem NO.: DY-SV19R

SV19R Voice Playback Control Module

Product Overview:

DY-SV19R is an upgraded product of SV17F, which also integrates IO segmented triggering, UART serial port control, and 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; Supports MP3, WAV decoding format, onboard 32Mbit (4MByte) flash storage, and can connect to a computer via USB data cable to update audio files; The upgrade supports the external volume adjustment potentiometer, the configuration pin does not need to weld the pull-up/pull-down resistance, and the USB external pin is reserved to facilitate the external download interface.

Product Parameters:

● Working voltage: 3.7-5V

● On board memory: On board 32Mbit (4M bytes)

● 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

● Audio download: USB data cable connected to computer for download

● Product size: 26mm * 23mm

● Configure resistance: Configure pins without welding resistance, directly connect to 3.3V or GND

● DACL/R output: not supported

● USB external connection: supported

● External volume potentiometer: support

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. On board 32Mbit (4MByte) flash storage, which can be connected to a computer via USB data cable to update 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 function, controls playback, pause, song selection, volume increase/decrease, and other functions, with a maximum selection of 65535 tracks and 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

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