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SSM3515 PBTL and AVDD

Question asked by agentdavo on Jan 18, 2017
Latest reply on Feb 24, 2017 by Rajeev

Hi!

I have a few questions about the SSM3515.

 

1). Could you use two SSM3515 in parallel BTL for greater power output?
Ie 2 devices in parallel = 4ohm @ 16v = approx 50W @ 1% THD.

If so, do you have a recommend schematic?

2).  What effect does the 3.3 AVDD supply have on output THD?  If for example a higher PSSR supply 10Hz to 100Khz was used would there be any significant THD/SNR benefit?

3).  Is there any significant performance benefit/degradation of using TDM over i2s for a 4 channel amplifier?  Each channel 96Khz/24-bit.

 

4).  Is there an optimum i2s/TDM frequency for best THD/SNR?

 

Thanks,


David.

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