an8725fh Panasonic Corporation of North America, an8725fh Datasheet - Page 29

• Manufacturer Part Number: an8725fh
• Description: Semiconductor Laser Power Control Ic
• Manufacturer: Panasonic Corporation of North America

ICs for Optical Disk Drive
2. Timing chart
Switching characteristics
Pulse width
Setup time
Hold time
1) Definition of rising and falling
2) Interface
AD0
DT0
XWR
XRD
Application Notes (continued)
to AD3
to DT7
Parameter
t
2
90%
Write address
Symbol
In write
t
t
10%
t
t
t
t
t
LH
HL
t
t
t
t
t
t
11
10
13
14
4
2
3
9
6
7
t
4
HL
Write data
t
3
10% to 90%
90% to 10%
XWR
XRD
AD defined to XWR
DT defined to XWR
AD defined to XRD
XRD
XWR
XWR
XRD
XRD
t
t
7
6
to XRD
to AD released
to DT released
to DT defined
to XWR
to AD released
to DT released
Conditions
t
9
10%
t
LH
t
10
Read address
90%
In read
t
11
Min
Read data
50
70
10
35
10
0
0
0
0
Typ
t
t
14
13
AN8725FH
Max
10
10
50
30
Unit
ns
ns
ns
ns
29