2012年9月1日 · Is it worth asking the question? I read some positive comments on LM1875 but comments that some in the TDA series is more life like...

I built the single-supply high-power amplifier from the ST datasheet for the TDA2030A. I stuck with the reference design but replaced the BD907/BD908 transistors with TIP35C/TIP36C transistors and switched the power supply capacitor from 2200 uF to …

2009年11月18日 · If I have already tda2030a in my drawer or for low investor, tda2030a is good sound for the PRICE ) I will use four IC 1:Tweeter 2:Mid 3&4:Woofer (Bridge) i.e. 18x2+35 = 70Watts per channel.

In fact, both Tda2030A and 2040 chips only output maximum 2 Watts on 24 Volts @ 8 ohms and 1 watt on 12 Volts @ 8 ohms load. Not only that, I found that component values given in the datasheet of Tda2040 for Single supply was not working in reality.

2014年7月22日 · ST Tda2030A (100%authentic , pulled from an 10 years old working amp), ST tda2050 (100% authentic , bought 5-6years ago). Take a look at the legs (ST chips) , they are wider at the top, take a look at that scoop on the side, it is not in the middle. Now, I am not sure , but do you have an tda2040A? Not such a thing....

2005年8月5日 · I have built a 4 channel power amplifier using TDA2030A I have used a the same circuit as in the datasheet using singlesupply (figure 15 in the datasheet),I have also replaced the zobel network (a 1ohm resistor and 220mfd cap at the output) i guess that doesn't make any difference it seems to work fine .

2011年7月21日 · ive already made a bridged amplifier with tda2030A totally for two channels i've used 4 of the chip and within a -18/+18 supply with 4A. on every channel i could get almost a 28W on 4ohm speakers... I am wondering, If i can combine 2 bridged boards and make a mono output amp? is there anyway...

2011年9月30日 · Hi I am about to build some test equipment and was considering using a TDA2040 in the output. My concern was the stability at unity gain. Has anybody a spice model for a TDA2040 or TDA2030? Has anyone tried running these at unity gain? The idea is to generate a spit supply from a 24 volt plug...

2019年11月13日 · I started out building a small test circuit with a TDA2030A running at stabilized +-15V and a resistive 8R or 100R load. The circuit is close to the datasheet example, using 22k and 1k in the feedback loop for ~27dB gain. The noise gain version uses 1k and 1k for 6dB gain, with an additional 47R between the op amp inputs. Signal gain is (1k/1k)+1 = 2 (6dB) while noise gain is (1k/1k||47)+1 ...

2010年6月1日 · I've built a TDA2030A amp, ran it off a regulated split supply. For some undetermined reason it sounded awful at first but then was fine after a few hours running in. Nice little amp. You could run it off a wall-wart. Absolute maximum voltage for TDA2030A is 44V, minimum is 12V. Allowing for mains supply going 10% higher than nominal a 40V adapter would be the maximum. Allowing for 20% low ...