Manuals / JVC / Home Audio / Stereo Receiver

JVC RX-D702 JCV8015, Hybrid Feedback Digital Amplifier Ver, In +, Double analog & digital, Driver

Models: RX-D401 RX-D402 RX-D702

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Hybrid Feedback Digital Amplifier

JVC technologies for satisfyingEvolutiontheofTHXHybridUltra2FeedbackcertificationDigital Amplifier (3)

Evolution of Hybrid Feedback Digital Amplifier (3)

RX-D702 RX-D402

*Also applies to RX-D401

Hybrid Feedback Digital Amplifier Ver. III

Double analog & digital feedback loops for even lower total harmonic distortion.

Use of newly-developed “JCV8015” for containing all the circuits.

3	Double analog & digital
	feedback loops for even lower
	total harmonic distortion

IN +

PWM		Pre-	Demodulator
PWM	PWM	Driver	(LPF)
Modulator	PWM

Phase Shift

Master Clock

JCV8015

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Page 48

Image 48

JVC RX-D702 JCV8015, Hybrid Feedback Digital Amplifier Ver, In +, Double analog & digital, feedback loops for even lower

Contents

< 1 > High-Power 7.1-ChannelA/V Control Receiverseivers < 2 >Design Concepts HDMI DCDi by FAROUDJA1 High-QualityPictures HDMI --The Next-GenerationDigital InterfaceHDMI High-DefinitionMultimedia Interface --An Industry-Supported,Digital Audio/Video InterfaceDeveloped for Next-GenerationHome AV Devices Its remarkable benefits include„ Single-CableConnections DisplayReceiver DisplayDVD/VDR/D-VHS/STB DisplayHDMI FAROUDJADVD/VDR/D-VHS/STB DisplayHDMI 480i/p, 720p3D Deinterlacer 3D Noise Reduction3D Cross Color Fleshtone AdaptiveEffectEffectExamplesExamples11 3D DeinterlacerJagged Edges on Diagonal Lines Cross-ColorSuppressionEffectEffectExamplesExamples22 Fleshtone Adaptive Noise ReductionWireless USB Connection USB ConnectionTransmission of Stereo Audio Signals from PC Superior Sound Quality Matching CD/DVDUSB Connection Note PC or Desk-TopPCUser ID Learning Function Auto ScanTransmitter Channel Key ID KeyBluetooth Wifi/802.11bDelay Time FeatureUSB Connection Note PC or Desk-TopPCCC Converter P.E.M. D.D. Converterfor CDs, DVDs, etc for MP3, WMA, etcBackgroundBackground 24-bitProcess of Playing Digital Music < 19 >A/D and D/A Conversion in Amplitude Domain < 20 >A/D and D/A Conversion in Frequency Domain < 21 >CC Converter Block Diagram CCCCConverterConverterBitBitExpansionExpansionSectionSection Hi-bitExpansion ProcessingRange Expansion Block Diagram RangeRangeExpansionExpansionSectionSectionCC Converter < 25 >Expansion ON Expansion OFF LINEAR MODE for CDs, DVDs, etc Level dBFrequency kHz COMPRESSION MODEE for MP3, WMA, etcD.D. Converter P.E.M. D.D. Converter< 27 > Also applies to RX-D401Noise Shaping Response/Noise Spectrum Noise Shaping Response TheoreticalNoise Spectrum P.E.M. D.D. ConverterAnalogAnalog ININ DVD Audio INP.E.M. D.D. Converter Digital INDigital IN Analog ININDVD Audio IN L/RL/RJVC exclusive DSP Features AdvantagesJVC exclusive DSP JVC’sJVC’sDSPDSP Stereo Playback 7-ChannelDAP Playback5.1-channelPlayback Rear FrontImpulse Response Early ReflectionsReverberations Time Series Analysis of Simulated Hall AcousticsDAPDAPModesModes11 THEATERTHEATER LIVE CLUBDAPDAPModesModes22 DAP Modes for RX-D702/D402/D401JVC exclusive DSP „ Level: ±8dB, 2dB steps 3D3DHeadphoneHeadphone OUTOUTMidnight Mode ProcessingMidnightMidnightModeMode HighCenterCenter--ChannelChannelAlignmentAlignment SmartSmartSurroundSurroundSetupSetup < 42 >Hybrid Feedback Digital Amplifierplifier Hybrid Feedback Digital Amplifierplifier VerVer..5 Hybrid Feedback Digital Amplifier Background --What is PWM? Generation of PWM SignalsHeat Generation PWM Pulse Width ModulationError & Distortion Hybrid Feedback Digital Amplifier IN +the precision of PWM signal generation Digital feedback --for significantly improvingHybrid Feedback Digital Amplifier Ver. Double analog feedback ensureseven lower distortion DriverPhase Shift Master Clock JCV8015Hybrid Feedback Digital Amplifier Ver. IN +Low-VoltagePower Supply + Power SupplyPower Supply Hybrid Feedback Digital Amplifier Ver.One-ChipSolution with JCV8015 < 50 >L-ch R-chL-chout Symmetrical LayoutUltra-High-Speed Comparator Input Audio Signals High-PrecisionPWM ModulatorSynchronization by an External Clock JCV8015 Benefits 2 --PWM Modulator/External ClockImproved Sound Quality noise interference to analog GND2.5VRegulator 2SK3770-01MR IRFB4212IRS20124 ETQA15RX-D702 Non-FeedbackAmp Comparison of Speaker Driveability0.001 0.01 0.1 1 10 Output Power W /6Ω 0.004%Non-FeedbackAmp 0.01Hybrid Feedback Digital Amp RX-D702Supplementary Information OSDOSDSuperimposedSuperimposedononScreenScreen58Rear Panel Rear PanelSetup processes --superimposed on your OSD Superimposed on ScreenThe RX-D702displays a wide range of information --including the Smart SurroundBasic Features RX-D702BControl ReceiverProduct Highlights Basic Features RX-D402BControl ReceiverProduct Highlights For RX-D702B For RX-D402B/RX-D401S< 61 > RX-D702B RX-D402B/RX-D401S < 62 >< 63 >