DDS lineup--Sony technology makes it possible

DDS lineup--Sony technology makes it possible
Digital Data Storage
DDS
DDS data cartridges: high capacity, compact, and
Ultra-fine magnetic particles
versatile for a wide range of applications and platforms
Although smaller magnetic particles are more difficult to disperse
within the binder, SonyÕs high dispersion technology achieves
outstanding results even with ultra-fine particles. The magnetic
particles for DDS3 and DDS4 tapes are approximately 0.1µm
(100nm), but the output value for the shortest recorded wavelength is
5dB or higher than that of DDS2.
MODEL NAME
GENERAL CHARACTERISTICS
Format
Magnetic Material
Recording Density (kftpmm)
DDS lineup--Sony technology makes it possible
A single tiny DDS4 cartridge (DGD150P) holds a massive 20GB of
uncompressed data. Key to such high-density storage is SonyÕs
helical scan technology, originally developed for video applications.
Outstanding durability and tape travel stability
SonyÕs highly durable HCL (High Cross Linkage) binder raises
reliability and durability to withstand the stress of repeated use. In
addition, SonyÕs RDP mechanism sandwiches the tape between
textured sheets to support smooth tape winding. The cartridge lid is
made of strong plastic to protect the tape against accidental drops
or mechanical shock.
Unique low torque cartridge
As tape winds onto a reel, torque rises along with diameter. To
minimize this torque effect in fast-forward and rewind search modes,
Sony uses special designs for the DDS hubs, lower sheet, and lower
shell. The shell also improves overall cartridge strength to minimize
potential deformation under external stress.
Recording Capacity (Compressed*)
MAGNETIC CHARACTERISTICS (NOMINAL)
Residual Magnetic Flux Density (mT)
Coercive Force (kA/m)
PHYSICAL CHARACTERISTICS (NOMINAL)
Tape Width (mm)
Tape Thickness (µm)
Tape Length (m)
ENVIRONMENTAL REQUIREMENTS
Operation Conditions (ºF(ºC);%RH)
Storage Conditions (ºF(ºC);%RH)
Transportation Conditions (ºF(ºC);%RH)
DIMENSIONS
External Dimensions (mm)
Weight (g)
MODEL NAME
GENERAL CHARACTERISTICS
Format
Magnetic Material
Recording Density (kftpmm)
Recording Capacity (Compressed*)
MAGNETIC CHARACTERISTICS (NOMINAL)
Residual Magnetic Flux Density (mT)
Coercive Force (kA/m)
PHYSICAL CHARACTERISTICS (NOMINAL)
Tape Width (mm)
Tape Thickness (µm)
Tape Length (m)
ENVIRONMENTAL REQUIREMENTS
Operation Conditions (ºF(ºC);%RH)
Storage Conditions (ºF(ºC);%RH)
Transportation Conditions (ºF(ºC);%RH)
DIMENSIONS
External Dimensions (mm)
Weight (g)
DG60P
DG90P
DGD120P
DDS1
Metal HDA
DDS2
HESA
3,000
(76kftpi/61kbpi)
2.0GB (4.0GB*)
1.3GB (2.6GB*)
4.0GB (8.0GB*)
250
121
295
130
3.81
9.0
91
13.0
60
6.8
120
59~131 (15~55);10~80**
41~89.6 (5~32);20~60**
-40~113 (-40~45);5~80**
73.0x54.0x10.5
44 (with case)
DGD125P
DGD150P
DDS3
MP++
DDS4
MP+++
6,000
(152kftpi/122kbpi)
12.0GB (24.0GB*)
20.0GB (40.0GB*)
390
190
400
195
3.81
6.8
125
5.6
150
59~131 (15~55);10~80**
41~89.6 (5~32);20~60**
-40~113 (-40~45);5~80 **
73.0x54.0x10.5
44 (with case)
* 2:1 Compression ratio.
** Maximum wet bulb temperature: 79°F(26°C) at no condensation.
Thin dual-layer coating technology
Sony DDS3 and DDS4 tapes use a dual-layer coating comprising an
ultra-thin magnetic layer and a nonmagnetic layer. The ultra-thin
magnetic layer provides high output even in the high frequency range
essential for high-density recording. The nonmagnetic layer creates a
smooth surface to support tape travel stability and durability.
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