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4 x 100W Class D Bluetooth Audio Amplifier Board - TSA8498B Apt-X
Product Code: G56F0BD6FD1CF0
Product Description

This is a 4x100W audio amplifier board with a new AudioB plus Bluetooth module that supports Apt-X.

It has integrated 2xST high performance TDA7498 which supports dual channel audio amplification.

Each channel is capable of producing nominal output  power simultaneously and continuously. This board can be powered by any DC 14V-39V* power supply.  

Power input port can be power jack or screw terminal. The DC input jack is 2.5mm with positive core polarity and if you use 2 pin screw terminal, please pay attention to the polarity!

 It has a smart cooling system, the fan does not work in normal case to reduce the noise. It only starts when the chip temperature exceeds 65°C. Once the temperature goes down, the fan stops working.

It is perfect for your Hi-Fi application, the audio source can be RCA input or Bluetooth.

It is compatible with all the Bluetooth devices that support media audio, including iPhone, Android.

  • MUTE: Connect MUTE pin with GND pin. The amplifier board will go into mute state.
  • STBY: Connect STBY pin with GND pin. The amplifier board will go into standby state to save the power.
  • B/A: Connect B/A pin with GND pin. The Bluetooth input will always be the audio source no matter the audio source selecting switch position.

 

 

Note: We have tested it. It also works well with 12V DC power. But we suggest you to use DC 14V-39V power if possible.

 

Specification:

Following table lists all typical data of the Amp board. For full specification, please refer to the data sheet of STs 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:

  • Size: 15.5cm x 11cm
  • Apt-X supported
  • Smart cooling system
  • Bluetooth 4.0
  • External mute control port
  • External Bluetooth/LINE IN control port
  • Working voltage: DC 14V-39V
  • Over/under voltage protection
  • Over current protection
  • Over temperature protection

 

Applications:

  • Personal computer
  • Background music system
  • Musical instrument amplifiers
  • Home DIY
  • Car audio

Documents:

$59.50 inc. tax
Units in Stock: 100
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