TPA3118 Аудіо плата підсилювача Bluetooth 30 Вт * 2 подвійний канал із AUX Bluetooth 5.0 підтримка хенд-фрі мікрофон.
product details: This is a 9-24V DC single-supply power supply, using TI's TPA3118D2 30W+30W two-channel digital power amplifier chip. With Bluetooth audio reception (support for calls), external audio input interface with 3 switch controls. The board is a finished board that has been soldered and tested. Connect the speaker box according to the picture, connect the appropriate power supply, connect to the Bluetooth audio device to play, or connect the sound source input correctly. Instructions for use: Power on the default Bluetooth mode, the LED light flashing is waiting for the Bluetooth device to connect, such as Bluetooth is not connected, then automatically turn to LINE IN / audio input mode (source is connected); Bluetooth connection status, automatically turn LINE IN / audio input mode after the Bluetooth is disconnected (the audio source is connected);
Interface Description: LINE IN: External audio input, 3.5mm standard two-channel jack; VOL-/PREV: Long press to decrease the volume / single press the previous track (only Bluetooth is valid); PLAY-/PAUSE: Single press play/pause; VOL+/NEXT: Press and hold the volume/single button (Bluetooth only); MIC IN: microphone interface, for Bluetooth calls (can be connected as needed);
The main technical parameters: 1. Dimensions: 59 (W) x 76 (D) x 15 (H) mm, excluding the protruding part of the switch socket. 2. Operating voltage range: DC power supply DC9-24V (current 3-4A, if the power requirement is higher than 20-24V/4-5A) If AC (AC) transformer power supply is used, it must be rectified and filtered to DC (DC) power supply. Can be used. Note that the DC (DC) no-load voltage should not be greater than 25.5V (this is very important) 3. Bluetooth receiving distance: >8 m (m) is the barrier-free receiving distance, the Bluetooth performance of the phone itself, will also affect the receiving distance. 4. Audio input sensitivity: 600 - 800mV; Frequency range: 20Hz - 20KHz 5. Speaker impedance: 4-8 ohms,
Output Power: Power supply 12V/8Ω European speaker >10W x 2; 12V/4Ω >15W x 2; 19V/8Ω >20W x 2; 24V/8Ω >30W x 2;