90%
Feature:
"Notes":
1: Do not reverse the positive and negative power supply voltage can not exceed 5.5V, whenever there is a situation in which, immediately burn IC
2: On-chip high-gain buffer, the board can not change any component parameters do not meet the parameters will result in IC damage.
3: The input line, please try to use shielded cable, interference can play a role in removing clutter current sound.
4: output cmos tube BTL drive, so the speaker can be connected together without the negative, that is connected to the speaker's four lines are completely independent, does not allow total access!
Package:
1 x Mini-USB powered digital amplifier board 3W stereo w/volume control" />
Based in Wuhan, Central China Hubei Province, Lilly Electronics is engaged in fabrication, sales and R&D of consumer electronics maninly in the industry of Laser, IC and LED! You are welcome to visit us for culture exchange and mutrual business development and progress.
Specification:
New on-line, should you friend request, compact amplifier section strip (push-button volume control and volume reset function)
Super mini digital amplifier board, new high efficiency digital amplifier, the input 5V obtained when [3 x 2] 6W power, ultra-thin board, use a lot.
"Benefits" efficient digital amplifier chip, special internal output processing circuit, eliminating the conventional LC network, lower than the LC EMI value!
At a lower voltage for maximum power output, super power, built-in standby electronic switch, built-in high-gain buffer amplifier, built-in short circuit protection.
"Power": 3.6 to 5.5V, single-cell lithium battery or USB power supply suitable, can also be four 1.2V batteries, be sure to add a transformer power supply 5V regulator circuit, the chip will burn more than 5.5V.
Power supply: DC (DC): 3.6v-5.5V
Output power: 3W +3 W (4 Ohms)
SNR: 90dB
Efficiency:> 90%
Feature:
"Notes":
1: Do not reverse the positive and negative power supply voltage can not exceed 5.5V, whenever there is a situation in which, immediately burn IC
2: On-chip high-gain buffer, the board can not change any component parameters do not meet the parameters will result in IC damage.
3: The input line, please try to use shielded cable, interference can play a role in removing clutter current sound.
4: output cmos tube BTL drive, so the speaker can be connected together without the negative, that is connected to the speaker's four lines are completely independent, does not allow total access!
Package:
1 x Mini-USB powered digital amplifier board 3W stereo w/volume control
