Kenwood 1050MD Service Manual page 40

1050MD/DM-5090/DM-9090
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DM-9090
[Format]
System..........................................................................................Minidisc digital audio system
Laser ............................................................................................Semiconductor laser
Recording method ........................................................................Field modulation overwrite method
Audio compression ......................................................................ATRAC (Adaptive TRansform Acoustic Coding)
Playing rotation ............................................................................Approx. 400 rpm ~ 900 rpm (CLV)
[D/A conversion]
D/A conversion ............................................................................1 Bit (24 bit Fine D.R.I.V.E.)
Oversampling ..............................................................................8 fs (352.8 kHz)
[A/D converter]
A/D converter................................................................................4 th order sigma-delta conversion+ D.R.I.V.E. con-
version
Sampling frequency......................................................................44.1 kHz
[Digital audio performance]
Frequency response (playback mode) ........................................8 Hz ~ 20 kHz, ±1 dB
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Signal to noise ratio (playback mode) ..........................................More than 110 dB
Dynamic range (playback mode)..................................................More than 98 dB
Total harmonic distortion (1 kHz, playback mode) ......................Less than 0.004 %
Wow & flutter ................................................................................Less than unmeasurable limit
Analog input sensitivity / input impedance....................................500 mV / 22 kΩ
Analog output level / output impedance ......................................2.0 V / Less than 300 Ω
Headphone output ........................................................................20 mW/32 Ω load
Digital input
Coaxial........................................................................................0.5 Vp-p / 75 Ω
Optical(Wave length 660 nm) ....................................................- 15 dBm ~ - 21 dBm
Digital output
Coaxial........................................................................................0.5 Vp-p / 75 Ω
Optical(Wave length 660 nm) ....................................................- 15 dBm ~ - 21 dBm
[General]
Power consumption ......................................................................20 W
Dimensions ..................................................................................W : 440 mm (17 - 5 / 16 " )
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Weight (Net) ................................................................................5.4 kg (11.9 lb)
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Note:
Component and circuit are subject to modification to insure best operation
under differing local conditions. This manual is based on Europe (E) standard,
and provides information on regional circuit modification through use of alter-
nate schematic diagrams, and information on regional component variations
through use of parts list.
SPECIFICATIONS
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H : 125 mm ( 4 - 15 / 16 " )
D : 373 mm (14 - 11 / 16 " )
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14-6,Dogenzaka 1-chome, Shibuya-ku, Tokyo, 150 Japan
KENWOOD SERVICE CORPORATION
P.O BOX 22745, 2201 East Dominguez St., Long Beach, CA 90801-5745, U.S.A.
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