2X20W Class D Bluetooth 4.0 Audio Amplifier - TSA9840B(TWS/Apt-X/Volume Control)

Description

TSA9840B 2x20W audio amplifier board with a new AudioB plus  Bluetooth module that supports Apt-X. It has perfect class-D architecture(Based on MAX98400A) and each channel has 20W power output. Both of channels are capable of outputting nominal power simultaneously and continuously. This board can be powered by any DC10V-24V power supply. It can be used to drive two 8Ω passive speakers. TSA9840B can also be connected with our TSA1010 or TSA1020 external audio volume control board. People can adjust the audio volume by rotating the real knob.
The highlight point is Apt-X and TWS supported. Therefore, Users can stream audio to 2 pair amplifier boards at the same time wirelessly. It's perfect for your Hi-Fi application. You may wish to pair with a mobile phone or a computer (etc). Power the amplifier board. Use your phone or PC (etc) to search for a new Bluetooth device. The module will appear as "TSA9840B". You don't need a PIN, pair it and then you can play music.
TSA9840B can auto detect the Aux in/Line in Audio input. Bluetooth Audio source has higher
priority. When Bluetooth audio is paused or bluetooth is disconnected. The amplifier will output the Aux in/Line in audio.
TWS mode supported. Users can stream audio to 2 pair amplifier boards at the same time wirelessly.
There have an extra LINE OUT audio output jack. It can also be connected with a subwoofer amplifier board.
BVC Port: BVC port can be connected with our Audio volume controller to control the Bluetooth audio volume.
TSA9840B can auto detect the Aux in/Line in Audio input. Bluetooth Audio source has higher
priority. When Bluetooth audio is paused or bluetooth is disconnected. The
Amplifier will output the
Aux in/Line in audio.
Specification:
Following table lists all typical data of the Amp board. For full specification, please refer to the data sheet of MAX98400A chip.TA = 25℃, fin = 1 kHz sine wave, RL = ∞, VVS = 18V. (Unless otherwise stated)
Parameter
Condition
Min
Typ
Max
Supply Voltage (VDC)
Inferred from PSRR test
10
-
24
Current Limit
3.5A
5A
-
Bandwidth @ ±3dB
@8Ω
20Hz
-
22KHz
Efficiency
PO = 2X20W, MAX98400A,
PVDD = 12V ,RL = 8Ω
-
90%
-
Minimum Load Impedance
8Ω
Switching Frequency
265KHZ
330KHZ
295KHZ
Gain
9dB
20.1dB
29.8dB
Input Sensitivity(RMS)
-
-
620mV
-
Input Impedance
-
-
22KΩ
-
Output Power
Stereo,RL = 8Ω,THD+N 10%
-
22W
-
Mono, RL = 4Ω,THD+N 10%
-
44W
-
THD+N
POUT=0.1W to POUT/2, fIN= 20Hz to 20kHz, RL= 8Ω
-
0.3%
-
POUT/2, fIN=1kHz, RL= 8Ω
-
0.03%
-
Features
:
Size: 9.1cm x 5.0cm
Bluetooth 4.2
APTX supported
TWS supported
Bluetooth audio volume control port(BVC)
Working voltage: DC10V-24V
Thermal and output current protection
Applications
:
Personal computer
Background music system
Musical instrument amplifiers
Home DIY
Car audio
On Apr-07-18 at 23:25:29 PDT, seller added the following information: