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MAX98400 2X15W+30W Subwoofer 2.1 Bluetooth Power Amplifier Board
SL-BD16 provides high-performance, thermally efficient amplifier solutions. it delivers 2x15W+30W into 8Ω loads.
It operate from a single 8V to 18V supply and provide a high 67dB PSRR, eliminating the need for a regulated power supply. They offer up to 90% efficiency from a 12V supply.
Both devices feature eight-digitally-controlled gain settings.
· LCD Monitors
· LCD/PDP Televisions
· MP3 Docking Stations
· Notebook PCs
A. Amplifier
· Output Power: Maximum 2*15W+30W at RL=8Ω,VCC=18V
· Power efficiency is up to 90%
· Low Working Voltage Down To 8V, High Working Voltage up To 18V
· Thermal Protection function
· Output Pin Short-Circuit Protection
· Separate VCC & PVCC
· Class-D stereo audio design
· Components use SMT decal, the board dimension is very small
· IC decal is 36-TQFN
· No external heat-sink, Less heat, save heat sink cost
· The current is very small
· Mute function
· The PCB design provides both bead and LC solutions
· Support Potentiometer volume control
· Support Bass voltage control
B. Bluetooth
· Bluetooth module is a Max.4dBm( Class2 ) module.
· Compliant with the Bluetooth V2.1 protocol.
· 16bit stereo DAC with Headphone Amplifier.
· Support the Bluetooth protocol framework: HANDS-FREE PROFILE (HFP:HF); ADVANCED AUDIO DISTRIBUTION PROFILE(A2DP:SNK); AUDIO/VIDEO REMOTE CONTROL PROFILE(AVRCP:CT);
· Support the SBC decoding, support for stereo output with 16KHz/32KHz/44.1KHz/48KHz sample rate
· Support the mobile music player switching songs, playing or pausing music
· Support the echo cancellation and noise suppression
· Support active connections and simple pairing
C. Other function
· Support SD/TF card function.
· Support 4 keys function: play/pause, next, previous, mode.
· Support recharge power function, the charge voltage is 15V
· Bluetooth LED, SD card LED, charge LED
· The dimension is only 113mm*75mm
l Connect DC power to the power connector, the Typical voltage is 12V
l The blue LED light on, if you press “mode” key once, the SD card LED light on. Press this key again, skip to Bluetooth function
l Open your Bluetooth device(EX: mobile, computer)
l Click search Bluetooth, you can found the Bluetooth amplifier.
l Click pairing, the Bluetooth amplifier can be auto-connection to your audio device
l Open the music or audio signal (EX: music) from your device, you can listen melody music from Bluetooth amplifier.
l Press “play/pause” key, you can stop to play music or start to play music.
l Press “Next” key, you can play next music.
l Press “previous” key, you can play previous music
l Rotate potentiometer with power switch, you can adjust total volume or power on/off
l Rotate Bass potentiometer, you can adjust bass volume.
l if you press “mode” key to SD card function, the board will play music from SD/TF card, all the keys will the same operation
l If you don’t DC power, you can use 11.1V 3000mAh battery, this battery connect to power connector, the board will also work
l If the battery voltage is less than 9V, the board will not work, you can plug the 15V power to recharge battery.
l The recharging will stop charge when the battery voltage is 12.5V
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