Sony DTC-ZE700 사용자 설명서
21
EN
Additional Information
3-
858
-189-12(1)
120 V AC, 60 Hz
10 kilohms
or more
or more
Specifications
System
Tape
Digital audio tape
Recording head
Rotary head
Recording time
Standard: 120 minutes
(when using DT-120)
Long-play: 240 minutes
Tape speed
Standard: 8.15 mm/s
Long-play: 4.075 mm/s
Long-play: 4.075 mm/s
Drum rotation
Standard: 2,000 rpm
Long-play: 1,000 rpm
Long-play: 1,000 rpm
Track pitch
13.6 µm (20.4 µm)
Sampling frequency
48 kHz, 44.1 kHz, 32 kHz
Number of channels
2 channels, stereo
D/A conversion
Standard: 16 - bit linear
(quantization)
Long-play: 12 - bit non-linear
Frequency response*
Standard: 2 - 22,000 Hz (±0.5 dB)
Long-play: 2 - 14,500 Hz (±0.5 dB)
Long-play: 2 - 14,500 Hz (±0.5 dB)
Signal-to-noise ratio*
90 dB or more (Standard and long-play
mode)
mode)
Dynamic range*
90 dB or more (Standard and long-play
mode)
mode)
Total harmonic
Standard: 0.005% or less (1 kHz)
distortion*
Long-play: 0.008% or less (1 kHz)
Wow and flutter
Below measurable limit (±0.001%
W.PEAK)
W.PEAK)
* During analog input with the SBM function off.
Input connectors
Rated input level
Input impedance
Jack type
Connector
ANALOG
Phono jacks
47 kilohms
–4 dBs
Phono jack
75 ohms
DIGITAL
OPTICAL
OPTICAL
Optical
connector
connector
—
—
DIGITAL
COAXIAL
COAXIAL
0.5 Vp-p
Output connectors
ANALOG
PHONES
–4 dBs
Rated
output
level
output
level
470 ohms
Phono
jacks
jacks
Stereo
phone-plug
jack
phone-plug
jack
—
Optical
connector
connector
Output
impedance
impedance
Connector
Jack type
Load
impedance
impedance
DIGITAL
OPTICAL
OPTICAL
(wavelength
660 nm)
660 nm)
—
100 ohms
32 ohms
1.2 mW
General section
Power requirements
Power requirements
Canada
Europe
Where purchased
230 V AC, 50/60 Hz
Power consumption
30 W
Dimensions
Approx 430
×
106
×
325 mm (w/h/d)
(17
×
4
1
/
4
×
12
7
/
8
inches)
Weight
Approx 5.0 kg (11 lb 0.4 oz)
Supplied accessories
See page 4.
Design and specifications are subject to change without notice.
SBM (Super Bit Mapping)
Function
Function
During analog recording, the SBM function lowers
noise within the frequency band to which to the human
ear is most receptive to noise, thereby, sharply
expanding the auditory dynamic range of the recorded
signal.
noise within the frequency band to which to the human
ear is most receptive to noise, thereby, sharply
expanding the auditory dynamic range of the recorded
signal.
High-precision pulse A/D converter
The deck uses a pulse AD converter and decimation
filter to convert an analog signal into a quantized 24-bit
digital signal. The deck, like CD players, uses 16-bit
quantization, and thus the 8-bit difference results in
more precise quantization, more signal information
and less quantizing noise than 16-bit quantization.
During conversion of the 24-bit data to a 16-bit
recording signal, the SBM function boosts sound
quality by reintegrating 4 bits of signal information
that would normally be lost into the 16-bit signal.
filter to convert an analog signal into a quantized 24-bit
digital signal. The deck, like CD players, uses 16-bit
quantization, and thus the 8-bit difference results in
more precise quantization, more signal information
and less quantizing noise than 16-bit quantization.
During conversion of the 24-bit data to a 16-bit
recording signal, the SBM function boosts sound
quality by reintegrating 4 bits of signal information
that would normally be lost into the 16-bit signal.