2 x 20W Bluetooth 5.0 Multipoint Audio Amplifier Board - TSA1740
20 or more $28.00
TSA1740 is a 2x20W Bluetooth 5.0 audio amplifier board. It has a digital amplifier chip YDA174 on the board. It is a 20W×2ch high performance digital audio power amplifier IC with two DSPs. This board can be powered by any DC10V-18V power supply. It can be used to drive any 4Ω or 8Ω passive speakers. 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 "TSA1740". You don't need a PIN, pair it and then you can play music.
The highlight point is you can connect multi TSA1740 to let them work together. It's a Bluetooth network. When you set the board to "party mode", users can stream audio to many amplifier boards at the same time wirelessly.
Note: There are soldering pads on the backside of the board for external buttons. You may need use a shielded cable to connect these buttons to prevent interference.
One TSA1740 works with a smartphone
How to use:
- Power the amplifier board.
- If your smartphone never paired with it before, you need the press the ON/OFF button first, and then to use your smartphone to search for a new Bluetooth device. The board will appear as "TSA1740".
- Pair and connect it and then you can play music.
- When you use it next time, you don't need press the ON/OFF button after power on.
Multi TSA1740 in party mode work with a smartphone
How to enter into party mode:
- Select one board as Master board. Let your smartphone paired and connected with it. You can play a music. You can hear the music from master amplifier speakers.
- Power on the other slave boards
- Long press the master board party button.
- Long press the slave boards party button one by one to make them paired with master board. All speakers can play music.
Specification:
Specifications typical @ +25℃, Powered by 12V DC, unless otherwise noted. Specifications subject to change without notice.
|
Parameter |
Condition |
Min |
Typ |
Max |
|
Supply Voltage (VDC) |
- |
10 |
- | 18 |
|
Idle Power |
SD Floating |
- |
1.3W |
2.5W |
|
Standby Power |
SD Connected to GND |
- |
0.1W |
0.3W |
|
Maximum Current |
40W @ 4Ohm |
- |
3.42A |
- |
| Efficiency |
PVDD=12V, RL=8Ω |
- | 86% | - |
|
Minimum Load Impedance |
3.2Ω |
|||
|
Distortion |
RL=8Ω, PO=4.5W, 1 kHz |
- | 0.05% | - |
| Gain | 25dB | |||
|
Residual Noise |
RL=8Ω, A-Weighted |
- | 50 μV | - |
|
Input Impedance |
- | - | 22KΩ | - |
|
Output Power |
PVDD=14V, RL=4Ω, THD+N=10% |
- | 20W | - |
|
PVDD=15V, RL =8Ω, THD+N=10% |
- | 15W | - | |
|
Bandwidth @ ±3dB |
@4Ω |
20Hz |
- | 20KHz |
|
THD |
@4Ω, 1W, 1KHz |
- |
0.0299% |
- |
|
@4Ω, 10W, 1KHz |
- |
0.073% |
- |
Features:
- Dimensions: 5.6cm x 12.6cm x 2.8cm
- Bluetooth 5.0
- Supports A2DP 1.3, AVRCP 1.6, HFP 1.6, HSP1.2 and SPP 1.2
- Aux in/LIne in auto detect
- Working voltage: DC10V-18V
- Pop noise reduction
- Over/under voltage protection
- Over current protection
- Over temperature protection
Applications:
- Personal computer
- Background music system
- Musical instrument amplifiers
- Home DIY
Documents:
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