0.24 μs

0.18 μs

0.48 μs

 

1.64 μs

 

 

 

1.16 μs

 

 

 

 

0.84 μs

 

0.92 μs

 

0.84 μs

 

0.84 μs

 

0.84 μs

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PA

SCD

POS

A

POS

B

POS

C

POS

D

PAD

ASM SSM

W/R Recovery Field

7.98μs

Servo

DATA

DATA

Servo

Frame

Frame

 

 

 

115.7 μs

 

 

Figure 4.6 72 servo frames in each track

(1)Write/read recovery

This area is used to absorb the write/read transient and to stabilize the AGC.

(2)Servo mark (SMK1, SMK2)

This area generates a timing for demodulating the gray code and position-demodulating Pos A to D by detecting the servo mark.

C141-E090-01EN

4 - 17

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Image 62
Fujitsu C141-E090-02EN manual Scd Pos Pad Asm Ssm, Data