User manual SONY DVP-NS999ES TWP

[. . . ] ES Series DVD-Video/CD/SA-CD Players Technical Background Version 3. 0; June 2, 2003 Introduction In 2002, the Sony DVP-NS999ES DVD player established an entirely new Reference Standard for the category. It introduced new advancements in video D/A conversion, new benchmarks in the coordination of audio and video signals and new refinements in the purity and integrity of the digital video signal. Now Sony extends these technological breakthroughs to two additional ES components: the DVP-CX777ES Disc Explorer® 400-disc changer and the DVPNC555ES 5-disc changer. It's no accident that these remarkable components come from Sony. [. . . ] All told, there are nine individual blocks in this IC (Front Left, Front Right, Center, Surround Left, Surround Right, Subwoofer, Stereo Left, Stereo Right and Digital Out). Because the nine blocks can be controlled independently, you can create virtual speaker positions ideal for both Super Audio CD and DVD playback. In addition, since all nine blocks can be controlled simultaneously, all signals can be given the same delay to achieve A/V alignment with the television. Schematic of the CXD9722 signal processing IC. High performance audio D/A converters with DSD inputs (all models) To elicit the full sound quality from Compact Disc, DVD-Video sound tracks and especially from Super Audio CD, these DVD players incorporate powerful audio D/A conversion technology. The D/A converters can handle DSD inputs for Super Audio CD playback as well as high quality DVD-Video signals up to 192 kHz sampling rate with 24-bit word length. This assures compatibility with the widest range of source material. The DVP-NS999ES offers even more, with separate Sony D/A converters for multi-channel and stereo programming. Both of these D/A converters include on-board Variable Coefficient digital filters for extremely accurate rendition of the soundfield on DVD-Video and CD. In addition, on-board DSD filters reduce highfrequency noise in Super Audio CD playback. Finally, both D/A converter ICs employ multi-level delta-sigma D/A conversion, which assures both excellent linearity and remarkably low noise. Balanced outputs on the DVP-NS999ES D/A converters enable balanced transmission of audio signals to the post Low Pass Filter on the audio circuit ES Series DVD-Video/CD/SA-CD Players; Version 3. 0 Page 24 board. This suppresses noise caused by fluctuations in the power supply and other externally-induced voltages. On the DVP-NS999ES, the Sony CXD9675R (left) is a high performance audio D/A converter for 5. 1-channel output. A separate D/A converter, the Sony CXD9674TN (right) serves two-channel stereo sources. Separate analog audio circuit board (DVP-NS999ES, NC555ES) The digital audio, digital video, analog video and servo control circuits inside a DVD player are potential sources of radiated noise. Low-level signals in the analog audio circuits are particularly susceptible to this noise. That's why the DVP-NS999ES and NC555ES isolate the analog audio circuits on their own board. It's one more measure to help maintain the purity of both DVD-Video sound tracks, and Super Audio CD music. In addition, the DVP-NS999ES uses six separate, identical audio circuits to handle the 5. 1 channels. This ensures uniform frequency response and gain characteristics at the output. Sony's careful design not only maintains the sonic purity of multi-channel Super Audio CD signals, but also preserves the crucial left/right and front/rear symmetry of 5. 1 DVD-Video surround signals. On the DVP-NC555ES, a separate printed circuit board for analog audio employs six separate, identical circuits to handle the 5. 1 channels of output. ES Series DVD-Video/CD/SA-CD Players; Version 3. 0 Page 25 Audio Shield Plate (DVP-NS999ES) The DVP-NS999ES prevents even minute interference between the analog video and analog audio circuit boards. The boards are separated by a substantial shield plate that includes a copper sheet to block radiation. This substantial, copper-lined shield plate protects the analog audio board from even subtle distortions caused by the analog video board. Wideband digital outputs (DVP-NS999ES) To deliver a high quality digital signal, the DVP-NS999ES employs a widebandwidth optical module. It can achieve transmission speeds over 13 Megabits per second. This offers plenty of headroom for the 4. 6 Megabits per second required by 96 kHz/24-bit outputs. The coaxial output delivers comparable quality thanks to a high-performance pulse transformer. [. . . ] Thanks to DSD encoding, the Super Audio CD format offers frequency response to 100 kHz and a theoretical dynamic range of more than 120 dB. But specifications alone cannot express the DSD advantage. DSD one-bit encoding strips away entire classes of distortion that have always characterized PCM. The DSD system provides nothing less than a quantum leap in music resolution. ES Series DVD-Video/CD/SA-CD Players; Version 3. 0 Page 50 The DSD pulse train "looks" remarkably like the analog waveform it represents. [. . . ]