Specifications

System

Audio playing system

MiniDisc digital audio system

Laser diode properties Material: GaAlAs Wavelength: λ = 780 nm Emission duration: continuous Laser output: less than 44.6 µW

(This output is the value measured at a distance of 200 mm from the lens surface on the optical pick-up block with 7 mm aperture.)

Recording and playback time

Maximum 74 minutes (MDW-74, stereo recording)

Maximum 148 minutes (MDW-74, monaural recording)

Revolutions

400 rpm to 900 rpm (CLV)

Error correction

Advanced Cross Interleave Reed Solomon Code (ACIRC)

Sampling frequency 44.1 kHz

Sampling rate converter

Input: 32 kHz/44.1 kHz/48 kHz

Coding

Adaptive TRansform Acoustic Coding (ATRAC)

Modulation system

EFM (Eight to Fourteen Modulation)

Number of channels 2 stereo channels

1 monaural channel

Frequency response

20 to 20,000 Hz ± 3 dB

Wow and Flutter Below measurable limit

Inputs

MIC (PLUG IN POWER): stereo mini-jack, 0.35–1.38 mV

(OPTICAL) LINE IN: stereo mini-jack with optical (digital) in

•Line in: 69–194 mV

•Optical (digital) in: wave length 660 nm

Outputs

PHONES/REMOTE: stereo mini-jack, maximum output level 5 mW+ 5 mW, load impedance 16 ohm

LINE OUT: stereo mini-jack, 194 mV, load impedance 10 kilohm or greater

General

Power requirements

Sony AC Power Adaptor (supplied) connected at the DC IN 4.5 V jack:

120 V AC, 60 Hz (US model) 220–230 V AC, 50/60 Hz (European model)

230–240 V AC, 50 Hz (UK model)

240 V AC, 50 Hz (Australia and New Zealand model)

Two nickel-cadmium rechargeable batteries NC-AA (supplied)

Two LR6 (size AA) alkaline batteries (not supplied)

Battery operation time See “Battery life” (page 24)

Dimensions

Approx. 116.8 x 18.5 x 86.1 mm (w/h/d) (4 5/8 x 3/4 x 3 1/2 in.)

Mass

Approx. 160 g (5.6 oz) the recorder only Approx. 220 g (7.8 oz) incl. a recordable MD, and two NC-AA nickel-cadmium rechargeable batteries

Supplied accessories

Optical cable (1)

AC power adaptor (1)

Headphones with a remote control (1) NC-AA nickel-cadmium rechargeable batteries (2)

Rechargeable battery carrying case (1)

32-GB