mt8977ac Mitel, mt8977ac Datasheet - Page 24

• Manufacturer Part Number: mt8977ac
• Description: Iso-cmos St-bus ?amily T1/esf Framer Circuit
• Manufacturer: Mitel

MT8977
AC Electrical Characteristics
† Timing is over recommended temperature & power supply voltage ranges.
‡ Typical figures are at 25 C and are for design aid only; not guaranteed and not subject to production testing
4-122
F0i
C2i
RxFDLClk
RxFDL
TxFDLClk
TxFDL
1
2
3
4
5
C2i
Frame
RxFDLClk
RxFDL
TxFDLClk
TxFDL
Transmit FDL Setup Time
Transmit FDL Hold Time
Receive FDL Output Delay
Receive FDL Clock Delay
Transmit FDL Clock Delay
2.0V
0.8V
2.0V
0.8V
2.0V
0.8V
2.0V
0.8V
2.0V
0.8V
2.0V
0.8V
Frame 12/24
ISO-CMOS
Parameters
t
Figure 22 - Clock & Frame Alignment for RxFDL and TxFDL
RFCD
Figure 23 - Facility Data Link Timing
†
- DS1 Link Timing (Figures 22 and 23)
t
t
t
Sym
t
DLOD
t
t
DLOD
FRCD
TFCD
DLS
DLH
Frame 1
Min
110
70
Typ
‡
Max
185
135
0
Units
ns
ns
ns
ns
t
Preliminary Information
TFCD
Frame 2
50 pF Load
50 pF Load
50 pF Load
t
.
DLS
Test Conditions
t
DLH