Tinysine
2 x 50W + 100W 2.1 Channels Bluetooth Audio Amplifier Board - TSA7492B(Apt-X)
2 x 50W + 100W 2.1 Channels Bluetooth Audio Amplifier Board - TSA7492B(Apt-X)
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TSA7492B 2x50W + 100W 2.1 channels audio amplifier board with AudioB pro Bluetooth module that supports Apt-X. It has perfect class-D architecture(Based on TDA7492 and TDA7498) and 2 channels have 50W power output and another one channel has 100W power output. All the channels are capable of outputting nominal power simultaneously and continuously. This board can be powered by any DC12V-26V power supply. It can be used to drive any 4Ω or 8Ω passive speakers. TSA7492B can also be connected with our TSA1000,TSA1010 or TSA1020 external audio volume control board. People can adjust the audio volume by rotating the real knob.
It's a 2.1 channels amplifier board. That channel for subwoofer are 100W mono output. You can pair it 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 "TSA7492B". You don't need a PIN, pair it and then you can play music.
The highlight point is to support Apt-X and TWS. Therefore, users can stream audio to 2 paired amplifier boards at the same time wirelessly.
- TSA7492B can automatically detect the Aux in/Line in Audio input. Bluetooth Audio source has a higher priority. When Bluetooth audio is paused or Bluetooth is disconnected, the amplifier will output the Aux in/Line in audio.
- There is an audio connnector which can connect with an external DSP to set the subwoofer audio tones.
- BVC Port: BVC port can be connected with our Audio volume controller to control the Bluetooth audio volume.
Subwoofer tones set port:
Connect an external potentiometer control the subwoofer volume separately
TSA1701 control our 2.1 channel amplifier board subwoofer channel
Button control port:
There are 3 buttons on the board that can control the audio volume and play/pause ect... You can connect external buttons easily by using these button control ports.
Pins define:(Check the board backside silkscreen):
P/P: Play pause button
VOL+: volume increase and forward button
VOL-: volume decrease and rewind button
1.8V
TSA7492B can automatically detect the Aux in/Line in Audio input. Bluetooth Audio source has a higher priority. When Bluetooth audio is paused or bluetooth is disconnected, the Amplifier will output the Aux in/Line in audio.
TSA7492B + TSA1000, Both Aux in and Bluetooth audio volume can be controlled through BVC port
2 boards work in TWS mode
*User must remove the slave board Aux in Enable jumper before pairing 2 boards
- S1 - Long press 3s into pairing mode. Long press 6s clear the pairing info.
- S1+S2 - Long press 1s into TWS slave mode.
- S1+S3 - Long press 1s into TWS master mode.
- S2+S3 - Long press 1s disconnect TWS connection.
Specification:
Specifications typical @ +25℃, Powered by 25V DC, unless otherwise noted. Specifications subject to change without notice.
| Parameter | Condition | Min | Typ | Max |
|
Supply Voltage (VDC) |
- | 12 | 25 | 26 |
| Power output per channel | RL= 8Ω, 10% THD+N | 40W | ||
| RL= 6Ω, 10% THD+N | 50W | |||
| RL= 8Ω, 1% THD+N | 32W | |||
| RL= 6Ω, 1% THD+N | 40W | |||
| 100W channel: RL= 6Ω, 10% THD+N | 100W | |||
| THD+N | 1W | 0.1% | ||
| Frequency Response (dB) | ±3dB | 20 | - | 22K |
| Operating Temperature (℃) | - | 0 | 20 | 50 |
|
Minimum Load Impedance |
4Ω |
6Ω |
8Ω | |
| Gain | 50W channel | 21.6dB | 27.6dB | 33.6dB |
| 100W channel | 25.6dB | 31.6dB | 37.6dB | |
| Efficiency |
All channels output rating power. |
90% | ||
|
Input Impedance (Kohm) |
- | 48 | 60 | - |
Features:
- Size: 14.4cm x 7.8cm x 3.4cm
- aptX, aptX Low Latency, SBC and AAC
- Bluetooth 5.0
- Bluetooth audio volume control port(BVC)
- Aux in/LIne in auto detect
- 2.1 channels
- Working voltage: DC12V-26V
- Over/under voltage protection
- Over current protection
- Over temperature protection
Applications:
- Personal computer
- Background music system
- Musical instrument amplifiers
- Home DIY
- Car audio
Documents:
