JVC RX-D702, RX-D402, RX-D401 manual Error & Distortion

Hybrid Feedback Digital Amplifier

JVC technologies for satisfying theProblemsTHX Ultra2ofcertificationDigital Amplifiers

Problems of Digital Amplifiers

RX-D702 RX-D402

*Also applies to RX-D401

With conventional amplifiers, the mechanism for digital signal processing tends to cause a wide range of noise.

Analog

Digital

	Signal		Power		LC typee
	Processor	PWM	Stage		LPF
● PCM-PWM
● Analog-PWM		■ Slew Rate Fluctuation		■ Magnetic

■ Power Supply Noise	Distortion
■ Dead Time
■ EMI

Error & Distortion

CausedCausedatatPowerPowerStageStageandandAfterAfter

*Even when the PWM signals are accurate, a wide range of noise is generated at power stage and after.

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