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Part Number: TPA3255
Hello, i am thinking if i can connect the inputs of the TPA3255 without the op amp stage ensuring that the single-ended signal are converted into balanced connexion? Is it possible to only connect the single-ended connexion to one input channel (by putting a dc blocking capacitor on the input A pin and connect it directly to the main signal source, and the input B pin to a same value capacitor, (like 10uf) but to the tpa3255 ground), like it is commonly done on the TPA3116 ? If i would like to do this, it's to minimize cost and achieve a better sound quality.
Thanks for your response to come.
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In reply to Shawn Zheng:
In reply to Lulu Lulu:
In reply to Justin Bohr:
So, to be sure, i can without any problems (just i getting a weaker output signal as you sayed) connect the A and D inputs to a single-ended source in BTL mode (A pin to right channel input and D pin to left channel input) and B and C pins to dc blocking capacitors of an equal value than the A and D pins (10uf) to ground (like it is possible with tpa3116 amplifier or tpa3220/3221 amplifiers)?
Or did i am forced to use a single-ended to differencial output converter made with op amps (that increase the cost and degrade the sound quality but allow me to get the full output power and; maybe depending by the noise floor level of op amps, to get less output noise, because the inputs are differencial)?
Ok for the dimensions of the board, to be sure when i design a pcb for the tpa32xx serie chip, i can without any problems (just i getting a weaker output signal as you sayed) connect the A and D inputs to a single-ended source in BTL mode (A pin to right channel input and D pin to left channel input) and B and C pins to dc blocking capacitors of an equal value than the A and D pins (10uf) to ground (like it is possible with tpa3116 amplifier or tpa3220/3221 amplifiers)?
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