MT8986 Mitel Semiconductor, MT8986 Datasheet - Page 26

• Manufacturer Part Number: MT8986
• Description: CMOS ST-BUS FAMILY Multiple Rate Digital Switch
• Manufacturer: Mitel Semiconductor

MT8986
AC Electrical Characteristics
† 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 R
.
AC Electrical Characteristics - Serial Streams at 4.096 and 8.192 Mb/s
(refer to Figures 20-25)
2-88
Figure 18 - Serial Outputs and External Control
STo0
to
STo9
CSTo
CLK
STo0
to
STo9
1
2
3
4
1
2
3
4
5
Clock Period
Clock Pulse High
Clock Pulse Low
Frame Sync Setup
Frame Sync Hold
O
U
P
U
S
T
T
STo0/9 Delay - Active to High Z
STo0/9 Delay - High Z to Active
Output Driver Enable Delay
CSTo Output Delay
*
Bit Cell Boundary
Characteristics
Characteristics
t
SAZ
4.096Mb/s
8.192Mb/s
4.096Mb/s
8.192Mb/s
4.096Mb/s
8.192Mb/s
4.096Mb/s
8.192Mb/s
4.096Mb/s
8.192Mb/s
t
SZA
(GCI)
(ST-BUS)
†
t
XCD
- Serial Streams for ST-BUS and GCI Backplanes (2.048 Mb/s)
*
Sym
Sym
t
t
t
t
XCD
SAZ
SZA
OED
t
t
t
t
t
CK
CH
CL
FS
FH
2.0V
0.8V
2.4V
0.4V
2.4V
0.4V
2.4V
0.4V
Min
0
Min
190
110
85
50
85
50
10
10
20
20
L
, with timing corrected to cancel time taken to discharge C
ODE
STo0
to
STo9
Typ
Typ
244
122
122
122
60
60
‡
Figure 19 - Output Driver Enable
t
Max
*
OED
100
100
65
60
Max
300
150
150
150
190
190
70
70
90
90
Units
ns
ns
ns
ns
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
R
C
R
C
L
L
L
L
=1 K *, C
=150 pF
=1 K *, C
=150 pF
t
Test Conditions
OED
Test Conditions
L
L
=150 pF
=150 pF
L
.
*
2.0V
0.8V
2.4V
0.4V