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The 4 time oversampling digital filter and original Z filter consisting mainly of right-and-left independent 2D / A converter are carried.
In compact-disk650, 4 time oversampling LSI of the newly developed 16-bit is adopted as this Z filter. It was made to operate at 176.4kHz by this, and the outstanding phase response and the high transient response property which reaches 30kHz of passbands have been acquired.
Moreover, the 3rd Bessel filter excellent in the phase response is used for a low pass filter.
2DCAC scheme which carries an exclusive digital analog converter in right and left is adopted as a digital analog converter, and the occurrence of phase gap is suppressed. Moreover, two sets of digital analog converters were dedicated to LSI of one chip, and also the stability is improved because LSI of a digital filter and a PLL demodulator circuit also throws in a newly developed type and accumulates a decoder circuit on three chips.
The influence of an oscillation or a vibration is suppressed by having adopted as a mechanism CDM-2 which improved the original swing arm mechanism, and also adopting a floating structure.
Inheriting the basic design of a swing arm and 1 beam laser pickup, it is what renewed a material and optical system, and adopted the high-density glass wool + tick, and CDM-2 has realized the fall of a weight saving and resonance frequency.
Furthermore, the pickup part supplied the original replica technology (aspheric surface coat coating) and MC type focusing mechanism, and has realized miniaturization and highly precise-ization.
In addition to the usual analog output terminal, the meister output which took into consideration the phase response in an audio inband and the high region property of analog master compact disk based on musicality is carried.
Moreover, the digital output termination is carried.
Newly developed compact-disk filing bank FTS is carried, by FTS, memory of the special NetWare program is carried out, and it can be saved.
In FTS, programmed compact disk is distinguished automatically and the special NetWare program by which memory was carried out for every compact disk is played. distinction of compact disk is performed by the original ID (identity) code, and the ID code combines the TOC data currently recorded on all the compact disks -- a special NetWare program, simultaneously automatic-input s that measure.
The memory of FTS is possible for a maximum of 155 sheets noting that it programs five music to one compact disk. electrically erasable and programmable ROM (2 K bytes) is used for a memory device, memory is possible also for which of a track / time / index, and a maximum of 20 special NetWare programs per sheet can program it.
The multi-display which indicates an operation and track of each functionalities, such as FTS, an index, and a transit and residual quantity time by intensive is carried.
The random access special NetWare program of a maximum of 20 music, a skip play, a scanning functionality, 5 mode repeat, the auto pause, the copy pause that inserts the blank part for 4 seconds between music, and 3 speed search are carried.
The headphone jack which equipped the volume is carried.
There was sub- wood as an option.
Random access is begun and the remote control which can operate almost all functionalities from a hand is attached.
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| Form | Compact disk player |
| <Audio property> | |
| Digital analog converter | L/R independent 2DAC The 4 time oversampling digital filter of a 16-bit |
| Filter | The 3rd Bessel filter |
| Channel | Two channels |
| Frequency characteristic | 2Hz - 20kHz |
| Dynamic range | 96dB or more |
| S/N ratio | 101dB or more |
| Channel separation | 100dB |
| THD | 0.0015%(1kHz) |
| Wow and flutter | Quartz-crystal precision |
| Error correcting system | CIRC |
| Analog output | 2Vrms |
| Digital output | 0.5 Vp-p/75ohm |
| <Optical reading scheme> | |
| Laser | AIGaAs semiconductor |
| Wavelength | 800nm |
| <Signaling scheme> | |
| Sampling frequency | 44.1kHz |
| Quatization | A 16-bit linear / channel |
| <Others> | |
| Power source | AC100V, 50Hz/60Hz |
| Power consumption | 30W |
| The maximum Dimensions | Width 420x height 89x depth of 300mm |
| Weight | 4kg |
| Adjunct | Wireless remote control |
| Option | Sub- wood WCD650 (4,000yen) |
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