MT8986
†
AC Electrical Characteristics - Serial Streams for ST-BUS and GCI Backplanes (2.048 Mb/s)
‡
Characteristics
Sym
tSAZ
Min
Typ
Max
Units
Test Conditions
O
U
T
P
U
T
1
2
3
4
STo0/9 Delay - Active to High Z
STo0/9 Delay - High Z to Active
Output Driver Enable Delay
CSTo Output Delay
100
100
65
ns
ns
ns
ns
R =1 KΩ*, C =150 pF
L
L
tSZA
C =150 pF
L
tOED
tXCD
R =1 KΩ*, C =150 pF
L L
0
60
C =150 pF
L
S
† Timing is over recommended temperature & power supply voltages.
‡ Typical figures are at 25°C and are for design aid only: not guaranteed and not subject to production testing.
* High Impedance is measured by pulling to the appropriate rail with RL, with timing corrected to cancel time taken to discharge CL.
Bit Cell Boundary
(GCI)
2.0V
CLK
2.0V
0.8V
0.8V
ODE
(ST-BUS)
STo0
to
STo9
2.4V
0.4V
*
2.4V
0.4V
STo0
to
STo9
*
*
tSAZ
tOED
tOED
2.4V
0.4V
STo0
to
STo9
*
tSZA
Figure 19 - Output Driver Enable
2.4V
0.4V
CSTo
tXCD
Figure 18 - Serial Outputs and External Control
.
AC Electrical Characteristics - Serial Streams at 4.096 and 8.192 Mb/s
(refer to Figures 20-25)
Characteristics
Clock Period
Sym
Min
Typ
Max
Units
Test Conditions
1
2
3
4
5
tCK
4.096Mb/s
8.192Mb/s
190
110
244
122
300
150
ns
ns
Clock Pulse High
Clock Pulse Low
Frame Sync Setup
Frame Sync Hold
tCH
tCL
tFS
tFH
4.096Mb/s
8.192Mb/s
85
50
122
60
150
70
ns
ns
4.096Mb/s
8.192Mb/s
85
50
122
60
150
70
ns
ns
4.096Mb/s
8.192Mb/s
10
10
190
90
ns
ns
4.096Mb/s
8.192Mb/s
20
20
190
90
ns
ns
2-88
MITEL [ MITEL NETWORKS CORPORATION ]
