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Specifications
Additional Information
model name1[MDS-JE640] model name2[MDS-JE440]
[4-229-587-11(1)]
Specifications
Inputs
Outputs
General
Power requirements
Supplied accessories
See page 10.
US and foreign patents licensed from Dolby Laboratories.
Design and specifications are subject to change without
notice.
System
MiniDisc digital audio system
Disc
MiniDisc
Laser
Semiconductor laser (
λ
= 780 nm)
Emission duration: continuous
Laser output
MAX 44.6 µW
1)
1) This output is the value
measured at a distance of
200 mm from the objective lens
surface on the Optical Pick-up
Block with 7 mm aperture.
Laser diode
Material: GaAlAs
Revolutions (CLV)
400 rpm to 900 rpm
Error correction
ACIRC (Advanced Cross Interleave
Reed Solomon Code)
Sampling frequency
44.1 kHz
Coding
ATRAC (Adaptive TRansform
Acoustic Coding)/ATRAC 3
Modulation system
EFM (Eight-to-Fourteen
Modulation)
Number of channels
2 stereo channels
Frequency response
5 to 20,000 Hz ±0.3 dB
Signal-to-noise ratio
MDS-JE440: Over 96 dB during
play
MDS-JE640: Over 98 dB during
play
Wow and flutter
Below measurable limit
ANALOG IN
Jack type: phono
Impedance: 47 kilohms
Rated input: 500 mVrms
Minimum input: 125 mVrms
DIGITAL IN
Connector type: square optical
Impedance: 660 nm (optical wave
length)
DIGITAL OPTICAL IN
(MDS-JE640 European
models only)
Connector type: square optical
Impedance: 660 nm (optical wave
length)
DIGITAL COAXIAL IN
(MDS-JE640 European
models only)
Jack type: phono
Impedance: 75 ohms
Rated input: 0.5 Vp-p, ±20 %
PHONES (MDS-JE640
only)
Jack type: stereo phone
Rated output: 28 mW
Load impedance: 32 ohms
ANALOG OUT
Jack type: phono
Rated output: 2 Vrms (at 50
kilohms)
Load impedance: over 10 kilohms
DIGITAL OUT
Connector type: square optical
Rated output: –18 dBm
Load impedance: 660 nm (optical
wave length)
DIGITAL OPTICAL OUT
(MDS-JE640 European
models only)
Connector type: square optical
Rated output: –18 dBm
Load impedance: 660 nm (optical
wave length)
Where purchased Power requirements
U.S.A. and Canada 120 V AC, 60 Hz
Europe 220 – 230 V AC, 50/60 Hz
Australia 240 V AC, 50/60 Hz
Hong Kong 220 – 240 V AC, 50/60 Hz
Other countries
110 – 120 or 220 – 240 V AC
selectable, 50/60 Hz
Power consumption
15 W
Dimensions (approx.)
430
×
95
×
285 mm (17
×
3
3
/
4
×
11
1
/
4
in.) (w/h/d) incl. projecting
parts and controls
Mass (approx.)
MDS-JE440: 3.0 kg (6 lbs 10 oz)
MDS-JE640: 3.1 kg (6 lbs 14 oz)