Tinysine
2 x 100W Class D Bluetooth Audio Amplifier Board - TSA7499B(Apt-X)
2 x 100W Class D Bluetooth Audio Amplifier Board - TSA7499B(Apt-X)
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TSA7499B are designed for factory or DIY user. Bluetooth/LINE IN select switch and audio input port are designed as JST connectors. So, user can install this amplifier board in a box and connect an external switch and RCA/3.5mm audio jack plug to make their own audio amplifier. TSA7499B can also connect with our TSA1000 external audio volume control board. People can adjust the audio volume by rotating a real knob.
TSA7499B is a 2x100W audio amplifier board with a new AudioB plus Bluetooth module that supports Apt-X. It's integrated ST high performance TDA7498 which support dual channel audio amplification. Both of channels are capable of outputting nominal power simultaneously and continuously. This board can be powered by any DC14V-39V* power supply. It has a smart cooling system, the fan does not work in normal cases to reduce the noises. The fan only starts when the chip temperature > 65°C.
It's perfect for your Hi-Fi application, the audio source can be cable input or Bluetooth. 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 "TSA7499B". You don't need a PIN, pair it and then you can play music.
Basic connection
TSA7499B with TSA1000 exteranl volume control board
Note: We tested it. It also works well with 12VDC power, but we suggest to use DC14V-39V power if possible.
Note: If you connect a TSA1000 with this amplifier board. The power input can not more than DC24V.
Specification:
Following table lists all typical data of the Amp board. For full specification, please refer to the data sheet of ST’s TDA7498 chip.
TA = 25 °C, fIN = 1 kHz sine wave, RL= 6Ω, VCC = 36V. (Unless otherwise stated)
|
Parameter |
Condition |
Min |
Typ |
Max |
|
Supply Voltage (v) |
- |
14 |
36 |
40 |
|
Quiescent Current (mA) |
FAN ON,STBY Disable |
- |
90 |
- |
|
FAN ON,STBY Enable |
- |
50 |
- |
|
|
FAN OFF,STBY Disable |
- |
40 |
|
|
|
FAN OFF,STBY Enable |
|
10 |
|
|
|
Input Sensitivity (mV) |
25.6dB |
- |
1356 |
- |
|
31.6dB |
696 |
|||
|
35.1dB |
460 |
|||
|
37.6dB |
341 |
|||
|
Input Impedance (Kohm) |
- |
48 |
60 |
- |
|
Gain (dB) |
GAIN0 = L, GAIN1 = L |
24.6 |
25.6 |
26.6 |
|
GAIN0 = L, GAIN1 = H |
30.6 |
31.6 |
32.6 |
|
|
GAIN0 = H, GAIN1 = L |
34.1 |
35.1 |
36.1 |
|
|
GAIN0 = H, GAIN1 = H |
36.6 |
37.6 |
38.6 |
|
|
Output Power (W rms) |
THD = 10% |
- |
100 |
- |
|
Efficiency (%) |
Both channels output rating power. |
- |
>90 |
- |
|
Minimum Load (ohm) |
- |
- |
6 |
- |
|
Frequency Response (dB) |
±3dB |
20 |
- |
22k |
|
Operating Temperature (℃) |
- |
0 |
20 |
50 |
Features:
- Dimensions: 122mm x 80mm x 18.6mm
- aptX, aptX Low Latency, SBC and AAC
- Smart cooling system
- Bluetooth 5.0
- External mute control port
- Working voltage: DC14V-39V(without TSA1000) DC14V-24V(with TSA1000)
- Over/under voltage protection
- Over current protection
- Over temperature protection
Applications:
- Personal computer
- Background music system
- Musical instrument amplifiers
- Home DIY
- Car audio
Documents:
