Name: Best Seller 4 X 100w Class D Bluetooth Audio Amplifier Board - Tsa8498 Massive 30% Savings [X7unP82Y]
Brand: mappa-mercia.org
SKU: HBS20686335111
Price: 18.99 USD
Availability: InStock
Rating: 3.68 (618 reviews)

This is a 4x100W audio amplifier board with AudioB plus Bluetooth module. It's integrated 2xST high performance TDA7498 which support dual channel audio amplification. Each channel is capable of outputting nominal power simultaneously and continuously. This board can be powered by any DC14V-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 screw terminal, please pay attention to the polarity!

It has a smart cooling system, the fan does not work in normal cases to reduce the noises. Only start when the chip temperature > 65°C. Once the temperature goes down, the fan stop running.

It's perfect for your Hi-Fi application, the audio source can be RCA input or Bluetooth. Compatible with all Bluetooth devices that support media audio, including iPhone,Android. Let your smartphone paired with this board, play a music. So easy!

MUTE: Connect MUTE pin with GND pin. The amplifier board will into mute state.
STBY: Connect STBY pin with GND pin. The amplifier board will 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 had tested it. It also works well with 12VDC power. But we suggest use DC14V-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 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