Denon dvd5000 schematic

Optical Pick-up Unit

Spindle Motor Drive

Digital Input

Video Output

S-Terminal

Composite Composite

Analog Output

FIX(LCH)

FIX(RCH)

VAL.(LCH)

VAL.(RCH)

H/ P Output

Digital Output

OPT. COAX.

OPT.

COAX.

Front End Processor4CH Driver

Digital Interface Receiver SelectorSelector

Disc Servo Control Optical Disc Control

Main Microprocessor

AL24 Processor

DXP6001AF

Video Encoder

Lowpass filter

Selector

H/P VR

Video Amp

D/A Converter PCM1704

AMP.

D/A Converter PCM1704

AV Decoder

HDCD

PMD100

AMP.

Video Driver

Pb Pr

Specification

The First Name in Digital Audio

DVD VIDEO PLAYER

DVD-5000

Video Section

Signal System

Disc played

Video Output

S-video output connector

Audio Signal output (Fixed)

Audio Signal output (Varialble)

Y output C output

Component output

Y output

Pb output

Pr output

Audio Section

DVD linear audio

CD audio

PAL DVD Video Disc, Video CD, Music CD 1 Vp-p (with 75 Ω load, sync, negative polarity)

1 Vp-p (with 75 Ω load, sync, negative polarity)

0.3 Vp-p 1 Vp-p (with 75 Ω load)

0.7 Vp-p (with 75 Ω load)

2 Vrms (1 kHz, 0 dB) 0 - 2 Vrms Frequency response: 48 kHz sampling; 2 Hz to 22 kHz 96 kHz sampling; 2 Hz to 44 kHz Frequency response: 44 kHz sampling; 2 Hz to 20 kHz

S/N

118 dB

DVD/CD

Dynamic Range

108 dB

DVD

100 dB

Total harmonic distortion

Sampling Frequency

Power supply

0.0015 %

DVD

0.0018 %

32, 44.1, 48, 96 KHz

General

17 kg

Weight

434 (W) x 135 (H) x 374 (D) mm

Dimensions

(excluding protruding parts) AC 230 V, 50 Hz

NIPPON COLUMBIA CO., LTD.

14-14,AKASAKA 4-CHOME, MINATO-KU, TOKYO 107-8011, JAPAN

Internet Home Page Address www.denon.co.jp

31561098

DVD-5000

Fig.1:AL24 Processor Block Diagram Fig.2:How AL24 Processing Works on Audio Signals

A. Data generated at higher-order bits (1-16)

D. Data added to lower-order bits

State-of-the-Art DVD Player for Superior A/V Entertainment and Future Expandability

The DVD-5000 is a reference-class DVD video player featuring DENON's latest digital technology known as AL24 Processing which produces the ultimate analog

waveform fidelity to suit next-generation media. In order for AL24 Processing to perform at its maximum potential,

the DVD-5000 also incorporates a 4-DAC 24-bit D/A converter section which supports up to 96 kHz sampling.

With the DENON DVD-5000, the audiophile becomes enveloped in a digital sound of an order they have never experienced before. The DVD-5000 is further equipped with

HDCD decoding that has been combined with DENON's digital technology to bring out the highest quality in sound that is possible with HDCD-encoded CDs.

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Newly-developed AL24 Processing

AL24 Processing has inherited the technology of the original ALPHA Processing that was used in DENON's highly-successful S1 series of reference-class audio components. AL24 Processing further reduces quantization distortion and represents the ultimate analog waveform reproduction technology designed to support the higher numbers of bits and higher sampling rate of next-generation media.

AL24 Processing senses the nature of the digital data being input and interpolates the data so that it faithfully replicates the original analog waveform. AL24 Processing supports not only 16-bit digital data but also 18-, 20- and 24-bit data, as well as input data with a sampling frequency of up to 96 kHz.

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Multiple 24-bit, 96-kHz D/A Converter

The DVD-5000 uses a 4-DAC 24-bit, 96-kHz Sampling D/A Converter system in order to D/A convert high-quality 24-bit data obtained from AL24

Processing with utmost fidelity. This design achieves a signal-to-noise (S/N) ratio of 118 dB and a dynamic range of 108 dB, to bring out the beautiful sound of high-bit, high-sampling technology.

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High-speed, Precision 10-bit, 27-MHz Video D/A Converter

The highly accurate video decoder processes the DVD video data (the component luminance and color difference signals). In order to output this high-quality digital signal with its original purity still preserved, the DVD-5000 employs a high-speed, high-precision 10-bit, 27-MHz video D/A converter. This design improves the reproducibility of extremely minute details so that the picture viewed on the screen is completely faithful to the original image in both its colors and high resolution.

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HDCD Decoder

HDCD represents encoding/decoding technology that drastically reduces digital recording distortion while retaining compatibility with the existing CD format. HDCD uses Peak Extension and Low-level Extension technology to convert 24-bit data to the 16-bit data format of existing CDs without sacrificing the high quality of 24-bit sound. This technology prevents the sound

from becoming distorted during peak periods, and boosts the low-level signals to improve the S/N ratio for a substantially richer dynamic range.

Since the DVD-5000 is equipped with an HDCD decoder, the Peak Extension and Low-level Extension features are accessed and combined with DENON's own 96-kHz, 24-bit 4-DAC system to realize the maximum potential of HDCD's remarkable sound quality.

The DVD-5000 also automatically senses the type of disc that has been loaded: an ordinary CD, a DVD disc, or an HDCD. The DVD-5000 then processes the signals based on the type of disc detected.

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Independent D/A converter

The DVD-5000 can also be used as a D/A converter. The front panel Source switch directs the digital input signals coming in through one of the two digital input terminals (optical or coaxial) so that it passes through the unit's AL24 Processor and D/A converter for output as a clean, highly accurate analog signal.

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Color Component Video Output

The DVD-5000 is equipped with a color component signal video output capability that faithfully outputs the analog signals resulting from direct and high-precision D/A conversion of the Y, Cb and Cr signals recorded on DVD. “S” and composite video outputs are also provided (2 of each).

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Vibration-resistant Construction

The DVD-5000 protects the DVD and the transport mechanism from unwanted vibrations using a centrally located holder with low center of gravity firmly secured with mechanism brackets to the unit's highly rigid, copper-plated chassis. This mechanism is further isolated from the digital, video, and audio circuits which have each been mounted on their own

copper-plated board so that the circuits can be thoroughly protected from mutual interference as well as vibrations. The overall chassis of the DVD-5000 is constructed of a 15mm thick aluminum front panel, a double-layered top cover, and a quadruple-layered bottom chassis assembly. All these parts have been secured with vibration-absorbent sintered alloy insulators to produce a construction that is totally protected from both internal and external vibrations.

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Easy-to-use Graphical User Interface (GUI)

B. Extruded rate ofchange

C. Date generated at lower-order bits (17-24)

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Parts strictly selected for sound quality

Three separate transformers have been employed for the

audio, video, and control sections. Transformers spe-

cially constructed with vibration-resistant

materials are used in the audio and

video sections. In addition, the same strictly-selected parts whose performance has

proven to be reliable during

the development of DENON's

S1 series of audio components -- such as the removable ultra-

thick AC power cord; very low ESR electrolytic capacitors, film

capacitors and carbon resistors designed for high sound quality; and the

high speed operational amplifiers selected for highest sound quality.

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High-performance Pickup and Digital Servo Technology

In order to read the maximum of 8.5 gigabytes of data that

can be recorded on one side of a DVD, the DVD-5000 uses a

self-excited oscillator type red laser with a wavelength of 650 nm

to ensure stable, low-noise performance. In addition, the pickup lens used with this laser employs an integral molding hologram that enables DVD and CD program sources to be read by the same pickup. As a result, the DVD-5000 features the shortest possible signal paths, a simplified construction, and superior reliability.

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Gold plated Audio and Video Terminals

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Digital Theater Systems (dts) Compatible Digital Output

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Easy-to-use Remote Control With Backlit Keys

E. Total of all data

AL24 Processing

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Expanding to Input Signal Bit Length of 24 Bits

While the original ALPHA Processing system generated four lower bits of data for the 16-bit input data to obtain data of 20-bit quality, the new AL24 Processing uses two calculating circuits in its lower data generation section to generate eight bits, to which the upper 16 bits of data is then added, producing an output signal of 24-bit quality (Figure 1).

First of all, the data reproduced from a CD is input as is in its 16-bit staircase form to the AL24 processor, as shown in waveform (a) of Fig. 2. The processor then extrudes the rate of change in 1LSB, whether positive or negative, from the portions of waveform (a) where a change in the data has occurred and produces waveform (b). Next, the AL24 processor uses its lower-order bit data generator to produce data for the four lower-order bits, 17-24, that should normally exist below the 16 bits as shown in waveform (c). The result is waveform (d), where lower-order bit data for each 1/16 LSB point of change is generated. Finally, the higher-order bits of waveform (a) are added to waveform (d), producing the synthesized waveform shown in waveform (e). This waveform thus reflects the smooth 24-bit oversampled data that is reproduced with superb audio clarity.

Impulse Response

Conventional AL24 Processing

Square Wave

Conventional AL24 Processing

(96 KHz, 24-bit test signal)