Seagate STT20000N, Руководство по эксплуатации продукта

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Chapter 7 Theory of operations
Page 52 STT20000A Product Manual
Figure 7-1a
Simplified block diagram of the STT20000N
D I G I T A L
C O N T R O L
A S I C
2 5 6 K B
E E P R O M
5 V O L T
1 8 8 u P
2 0 M H z
4 0 M H z
C R Y S T A L
R E A D
W R I T E
T A P E
H E A D
C A P S T A N
M O T O R
S T E P P E R
M O T O R
M O T O R
C O N T R O L L E R
5 1 2 K B
D R A M
S C S I
I N T E R F A C E
S E N S O R S
Figure 7-1b
Simplified Block Diagram of the STT20000N-C Drive
D I G I T A L
C O N T R O L
A S I C
2 5 6 K B
E E P R O M
5 V O L T
1 8 8 u P
2 0 M H z
4 0 M H z
C R Y S T A L
R E A D
W R I T E
R W W
T A P E
H E A D
C A P S T A N
M O T O R
S T E P P E R
M O T O R
M O T O R
C O N T R O L L E R
2 M B
D R A M
S C S I
I N T E R F A C E
S E N S O R S
A L D C - 1 H / W
D A T A
C O M P R E S S I O N