| bostjancek |
Hello !
Have anybody used TDA7318 chip preamplifier? If yes what do you think is worth to build?
If you look at the datasheet it seems to be rather good choice. DATASHEET
Cheers |
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| davidsrsb |
| THis looks like a car audio component. The distortion is a bit high, SNR is only OK if your input level is optimum , tone controls are too close to 1KHz and input separation is marginal. |
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| adi2san |
I have used in the past this IC for a small amplifier (I2C communication with an AVR microcontroller, also used for LCD, IR Receiver).
I can only say that this chip is quite noisy (in the datasheet the S/N ratio seems preety good, but i think they measured it in different conditions than normal use - high output audio level, etc).
The tone corrections are not that good as well (the bass frequency is too high, etc.), I guess this was intended for an average car audio sound system (cutoff frequency > 100Hz).
So, bottom line is that this circuit is not good enough for high fidelity in my opinion, there are some specialized ICs for High Fidelity but they are hard to find. |
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