Noise Shaping Sigma Delta DACs - ESS Technology, Inc.

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Overview of this Presentation • About ESS Technology • Simple Noise Shaping • The “magic” step... • ΣΔ Modulators • Beyond the ΣΔ modulator – ΣΔ artifacts and understanding what Audiophiles are hearing – What the ESS HyperStream does differently ΣΔ/HyperStream 6 of 44
What is the price of Gas? (1) • Apparently, it is 121.9 cents Before you start crossing the border to Canada to buy gas, this is per litre not per gallon! ΣΔ/HyperStream 7 of 44
Page 1 and 2: Noise Shaping Sigma Delta DACs Octo
Page 3 and 4: Corporate Overview • ESS was foun
Page 5: ESS Locations ΣΔ/HyperStream 5 of
Page 9 and 10: What is the price of Gas? (3) 1 Mon
Page 11 and 12: Does Noise Shaping help Audio? •
Page 13 and 14: How do we know which is best? These
Page 15 and 16: We look in the Frequency Domain Noi
Page 17 and 18: Overview of this Presentation • A
Page 19 and 20: This is a valuable technology.... T
Page 23 and 24: Modulators Omar Khayyam uses error
Page 25 and 26: The “order” of a control system
Page 29 and 30: ESS HyperStream Modulator • The H
Page 31 and 32: What is None PSS Noise? • Periodi
Page 33 and 34: This makes the noise vary The noise
Page 35 and 36: Source of None-PPS Noise (3) • An
Page 37 and 38: Noise vs DC input ΣΔ HyperStream
Page 39 and 40: Non-linear Excess Phase • None-PS
Page 41 and 42: What is Non-linear Excess Phase?
Page 43 and 44: The Sabre DAC • But, engineering

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