6-6
Specifications
6.5 Optical Disc Drive
Table 6-6
24X CD-ROM Specifications
Applicable Disc
CD-ROM mode 1, mode 2
CD-Digital Audio
CD-XA mode 2 (Form 1, Form 2)
CD-I mode 2 (Form1, Form 2)
CD-I Ready
CD-Bridge
CD-WO (fixed/variable packets)
Photo CD (single/multisession)
Drive Size (cm)
1.27 x 12.8 x 12.9
Center Hole Diameter
15 mm
Disc Diameter
12 cm, 8 cm
Disc Thickness
1.2 mm
Track Pitch
1.6
µ
m
Laser
Beam Divergence
53.5
±
1.5 degrees
Output Power
0.24
±
0.1 mw
Type
Semiconductor Laser GaA1As
Wave Length
780 nm
±
25 nm at Ph-4.3 mW
Access time
Random
<
350 ms (150 ms typical)
Full Stroke
<
750 ms
Audio output level
Line Out
0.8 Vrms
Headphone
None
Cache buffer
128 KB
Data transfer rate
Sustained, 24x
3600 KB/sec (outer diameter)
Sustained, single
150 KB/sec
Burst
8.3 MB/sec
Startup Time
<
8 seconds typical
Capacity
Mode 1, 12 cm
550 MB
Mode 2, 12 cm
640 MB
8 cm
180 MB
Содержание Armada 3500
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