occkic | Dc 5v Bluetooth 5.3 Mp3 Stereo Audio Decoder Board Receive Transmit Module Usb Port Car Home Desktop Speaker With Pcb Antenna

Product Features:1. Ultra small and lightweight design, onboard PCB antenna, stable operation without external antenna2. 36 fully connected pins, complete interfaces, and high flexibility in secondary development3. Multi source intelligent switching, supporting Bluetooth, TF card, USB flash drive, and AUX line input playback4. Supports USB sound card and firmware upgrades, stereo differential output, and adaptability to various amplifier devices5. Adapt to various audio product development scenarios such as speakers, car audio, toys, and broadcastersFeaturesUltra small size: module 13.5 × 25mm, board thickness 1mm, onboard PCB antenna, three side half hole (stamp hole) patch, can work without external antenna;Full pin lead out: 2 × 18 with a total of 36 pins, power/ground/audio/USB/SD/buttons/infrared/digital screen all lead out, flexible access;Multiple audio sources: Bluetooth playback, TF card playback, USB flash drive playback, AUX (LINE-IN) input, PO pin detects line input and automatically switches to AUX mode;USB sound card/upgrade: DM/DP supports USB flash drive playback and USB sound card;Audio output: DAC_L/DAC_S analog differential stereo output, can be directly connected to headphone amplifier or post amplifier (verification board provides HT3163 Class D amplifier reference circuit);Human computer interaction: four function keys: MODE/VOL+/VOL -/PLAY, IR infrared receiver, MUTE status output, EN delayed power on, LED/digital screen interface;Supporting verification board: LINE-IN, buttons, TF card holder, USB, IR receiver, headphone output, work indicator light, reference amplifier, digital screen pin layout are all ready for verification upon receipt;Product Parameters:Main controller: AC6956CPackaging form: Three sided half hole/stamp hole, patch+hand weldableAntenna: Onboard PCB antenna (no external antenna, no shielding cover version)Power supply: VIN power supply, verification board with USB 5V inputAudio interface: AUX_L/AUX_R line input, DAC_L/DAC_S line outputMemory card: TF (SD) card, SD_CLK / CMD / DAT / SD_VDDUSB ：DM / DP， Support USB flash drive, USB sound card, firmware upgradeOther interfaces: IR infrared, 4 buttons, MUTE/EN/ON-OFF control, LED1-7 digital screenModule size: 13.5 mm × 25 mmProduct List:1X module