MT8986
AC Electrical Characteristics - Serial Streams at 4.096 and 8.192 Mb/s
(refer to Figures 20-25)
Characteristics
Frame Sync Width
Sym
Min
Typ
Max
Units
Test Conditions
6
7
8
9
tFW
4.096Mb/s
8.192Mb/s
244
122
ns
ns
Valid Data Delay from CK Input
4.096Mb/s
tDD
tDS
tDH
tAZ
40
30
80
45
ns
ns
C =150 pF
L
C = 50 pF
8.192Mb/s
L
Input Data Setup
Input Data Hold
4.096Mb/s
8.192Mb/s
0
0
ns
ns
4.096Mb/s
8.192Mb/s
20
20
ns
ns
10 STo Delay from Active to High Z
4.096Mb/s
8.192Mb/s
80
45
ns
ns
C =150 pF, R =1 KΩ*
L L
C = 50 pF, R =1 KΩ*
L
L
11 STo Delay from High Z to Active
tZA
4.096Mb/s
8.192Mb/s
80
45
ns
ns
C =150 pF
L
C = 50 pF]
L
12 Output Drive Enable Delay
tOED
4.096Mb/s
8.192Mb/s
65
65
ns
ns
C =150 pF, R =1 KΩ*
L L
C = 50 pF, R =1 KΩ*
L
L
*
High Impedance is measured by pulling to the appropriate rail with RL, with timing corrected to cancel time taken to discharge CL.
2-89
MITEL [ MITEL NETWORKS CORPORATION ]
