Table of Contents
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SECTION 3
SPECIFICATIONS
3-1. DRIVE PERFORMANCE
Table 3-1 lists performance data for the SONY OA-D30V Micro Floppydisk drive.
TABLE 3-1. PERFORMANCE SPECIFICATIONS
Specification
Single Density
Double Density
CAPACITY
Unformatted per disk
218.8 K bytes
437.5 Kbytes
Formatted per disk
161.2 K bytes
322.5 K bytes
Burst TRANSFER RATE
250 K bits/sec.
500 K bits/sec.
ACCESS TIME
Track to track
15 msec.
15 msec.
Ave rage
*
365 msec.
365 msec.
Settling Time
15 msec.
15 msec.
Head load time
60 msec.
60 msec.
Average latency
50 msec.
50 msec.
FUNCTIONAL
Rotational speed
600 RPM
600 RPM
Recording
densit~
(inside track)
3805 BPI
7610 BPI
Track density
135 TPI
135 TPI
Cylinders
70
70
Tracks
70
70
R/W heads
1
1
Encoding method
FM
MFM
HEAT DISSIPATION
Operating mode (Head Load)
7.5 W
7.5 W
Standby mode (Head Unload)
3.3 W
3.3 W
*
Average access time
=
1/3 x (Track Nos.) x (Track to track time) + (Settling Time)
3-2. DIMENSIONAL DATA
Table 3-2 lists the dimensional data for the Micro
Floppydisk drive.
TABLE 3-2. DIMENSIONAL DATA
Physical Dimension
Value
Height
2.0 in.
(51 mm)
Width
4.0 in.
(102 mm)
Depth
5.1 in.
(130 mm)
Weight
1.5 Ibs
(650 g)
-7-
3-3. DC POWER REQUIREMENTS
Table 3-3 lists the DC power requirements for the
drive.
The user need only supply DC power, no
AC operating voltage is required.
TABLE 3-3. DC POWER REQUIREMENT
Voltage
Tolerance
Maximum
Current
Ripple
+12.0 V DC
±5 %
0.1 Vp-p
0.4 A (typ.)
1.5 A (max.)
+ 5.0 V DC
±5 %
0.05 Vp-p
0.6 A (typ.)
0.8 A (max.)
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