Sony Cleaning Tape Datasheet

H
D-1
eights of Component Digital
4:2:2 Performance: D-1A Digital
Video Cassettes
With the D-1A series, Sony takes its original D-1 digital
4:2:2 component format to new levels of performance.
Improvements in the magnetic particles, binder system, and
backcoating add up to greater reliability.
Improved magnetic characteristics for high output
Thanks to Sony's Hi-packing
technology and powerful
magnetic particles, retentivity is
now 25% higher and coercivity is
5% higher than the previous D-1
tape. This helps raise RF output
by 2dB to achieve excellent high
data integrity.
D-1A Modulation Noise Spectrum
Carrier-to-Noise Ratio(dB)
New reel improves tape winding
-10
The D-1 reels have been designed with specially molded
radial grooves. They not only protect against air being trapped
between tape layers during FFW and REW operations, but have
also reduced tape damage caused by uneven tape winding.
-20
-30
-40
20
30
40
50
60
Frequency(MHz)
Low rubbing noise
Physical properties
With the D-1 magnetic layer's
high output characteristics and
optimized tape surface design,
rubbing noise has been reduced.
In low humidity environments
especially, this suppression of
rubbing noise has also
successfully improved error rate.
A superb backcoating further
improves tape stability to
maintain low friction after
repeated high-speed passes while
editing.
Item
Friction Coefficient Changes
µs.SF-30V/20`C,63%
0.4
0.3
µ
0.2
0
0
50
100
Shuttle Time [pass]
150
µm
µm
µm
µm
mm
Typical value
D1-A
9.0
0.8
2.5
12.3
19.010
Unit
kA/m
mT
Ð
Typical value
74.0
150
0.85
Unit
Magnetic properties
D-1A
Current
0.1
Thickness: Base
Thickness: Backcoating
Thickness: Magnetic layer
Thickness: Total
Width
200
Item
Intrinsic coercivity (Hc)
Retentivity (Br)
Squareness (Br/Bm)
Video and Audio (Digital) performance*
Item
Video S/N
Still frame
Frequency response (20 kHz/20Hz)
Dynamic range
Unit
dB
hours
dB
dB
Typical value
56
1 or more
0
90
* Compared with Sony reference tape.
34
35
Digital Video
D-1A
Current
0

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