MPI 40 Series - Write Initiate Timing

I
I
DC POWER
--1
:-1oms
MOTOR ON
--f-I 1-- *35 M SEC
DRIVE SELECT I ._I _-:----:-: --------------------------
: ----I :~1ams
I i---~,:-----------------------------
S TEP I I
__ • ... l ____ ....... 1--.5 sec
WRITE GATE
--n--209±1a"' u•
-~~~~0-F-F"""""":I ON
387 ± 27% µs --1 1--
r-I O_F_F_
-ERASE
WRITE DATA
I
I
I
I
-I :-- 4.0 µs MAX
*IF HEAD LOAD LINE IS USED THEN 35ms DELAY IS FROM ACTIVE HEAD LOAD LINE.
NOTE: TIMES SHOWN ARE MINIMUM TIMES EXCEPT AS NOTED.
RAW
READ DATA
Figure 3-8: Write Initiate Timing
A
1
A B
0
A
0
1
B
0
1 1
A B A B A
-I l-200 :t50ns--l4.00µsl- l-2.ooµsNOM
SEPARATED 1 I NOMI _., __ ,..._..,;
DATA : I I
--+--{ 1--200 ± 50 ns l I
SEPARATED
CLOCK
I I
-i r-- .200 ± 50ns
A• LEADING EDGE OF BIT MAY BE.:!:. 400ns FROM ITS NOMINAL POSITION.
B .. LEADING EDGE OF BIT MAY BE .:!:. 200 ns FROM ITS NOMINAL POSITION.
Figure 3-9: Read Signal Timing for FM Recording
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