|Class D Switching Power Amplifiers and Power D/A conversion|
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|Yesterday, 10:11 AM||#1|
Join Date: May 2015
Location: South Brent UK
Problems with Ta2022 Module
I bought 2 YuanJing TA2022 Boards and have problem with noise.
TA2022 Amplifier 3300UF/50V*2 Finished board 90W+90W stereo Class D | eBay
I connected it to a transfomer (+-20V AC) and without connecting it to a source the white noise level is very high. One module is much more worse than the other. Even with both inputs connected to ground. The DC output of each channel is adjusted to zero with the pots.
If connected to a pre amp the noise level on one of the modules goes down but still noticeable. Quality problems of the boards or the Chip?
Last edited by TelegraphHill; Yesterday at 11:48 AM.
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