DOGNGUANG HONGYUANWEI TECHNOLOGY Co.
List 1. Scope of application................................................................................. 3 2. Electrical parameters................................................................................3 3. Function description................................................................................ 3 4. Physical map............................................................................................. 4 5. Block diagram.............................................................
1. Scope of application Application product number: Application product name: Application component: body 2. Electrical parameters Working voltage: DC12V Working current: playing music ≤800mA Operating voltage range: DC8V~14V Storage temperature: -20~ +70℃ Working temperature: 0~+60℃ Relative humidity: 45%~85% 3. Function description 1. Power on, play a car engine sound, and then enter the standby state. 2. Mode button: control playback source: Bluetooth—USB—built-in music and story. 3. Volume-\Previous
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6. Schematics diagram FLASH LD1 R1 LED1 330 +3.3V SPI_CS LD2 R2 LED2 330 U2 1 2 3 4 CS SO WP VSS W25Q20 LD3 R3 8 7 6 5 VCC HOLD SCK SI SPI_CLK SPI_DAT R7 240Ω LED3 330 E1 ANTENNA +3.3V C35 U6 VDD PA7 PA6 PA5/PRST GND PA0 PA4 PA3 8 7 6 5 PA LED3 BAT_DET LED2 C28 105 MIC PMS150C DACL +5V 功放 C27 104 U3 1 2 3 4 CE BYP +IN -IN R13 R14 C29 220uF R8 0R 4Ω 8002D 6.8K BT_OSC0 SP1 8 7 6 5 VO2 GND VDD VO1 TNA 1 2 3 4 LED1 1uF 2 C12 C7 2.
8. Packaging 1. Visual inspection after wave soldering is completed to check whether the appearance meets the requirements. There should be no false soldering, false soldering, short circuit, open circuit and other undesirable phenomena. There is no tin slag, tin bead and other sundries on the substrate, and the board surface is clean and tidy without stains. 2. After passing the test, assemble the rubber shell, 50pcs per box, and separate each layer with cardboard. 9. Precautions 1.
FCC Caution. (1)§ 15.19 Labelling requirements. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. § 15.
