JVC RX-D702 Technical Manual page 46

Hybrid Feedback Digital Amplifier Hybrid Feedback Digital Amplifier
JVC technologies for satisfying the THX Ultra2 certification
Hybrid Feedback Digital Amplifier
Use of two feedback loops eliminates the noise generated at each process:
Digital feedback -- for significantly improving the precision of PWM signal generation.
Analog feedback -- for "brushing up" the waveform of the analog signal at output to match the original.
1
IN
+
-
Evolution of Hybrid Feedback Digital Amplifier (1)
Evolution of Hybrid Feedback Digital Amplifier (1)
Digital feedback -- for significantly improving
the precision of PWM signal generation
PWM
Modulator PWM
Phase Shift
Master Clock
Analog feedback -- for "brushing up" the waveform of
the analog signal at output to match the original
Pre-
Demodulator
Driver
(LPF)
RX-D702 RX-D402
*Also applies to RX-D401
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