I like the way the chip is mounted, thats waht i need for the system I'm building. How does it sound?
sounds pretty good...the benchmark being my earlier amp based on TDA1514A and my Sony DHC-AZ55D. It's dead silent...no hum no hiss at all !
btw although the way the chip is mounted will remain that way , I will be using a larger heat sink in actual use..it's twice as large.
have another look at the trace and lead lengths connecting C1 to C2, the HF decoupling.
The traces are too long resulting in excessive inductance.
The traces are too long resulting in excessive inductance.
ya...tat ground trace is a bit long,but the caps are close the chip pins for +ve and -ve rails. I haven't had any issues though, with oscillations even with inputs open....which would occur with inductance in traces.. right ?
yes, the C1 & C2 decoupling are close to some of the power pins. But look how far apart they are.
The zero volts of the decoupling should be connected to each other. It's the way the currents want to flow. The decoupling is like a temporary battery for very short term transients.
good work,
did u assembled the PCB once send by me, how did that sound compared to this reference schematic
did u assembled the PCB once send by me, how did that sound compared to this reference schematic
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