mh89760b Mitel, mh89760b Datasheet - Page 28

• Manufacturer Part Number: mh89760b
• Description: St-bus? Family T1/esf Framer & Interface
• Manufacturer: Mitel

MH89760B
NB: Frame Pulse is repeated every 125 s in synchronization with the clock.
† 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.
4-82
AC Electrical Characteristics
1
2
3
4
5
6
7
8
AA
AA
F0i
RxSF
TxSF
C2i
ST-BUS
BIT CELLS
C2i
F0i
RxSF
AAAA
AAAA
F0i
C2i
TxSF
C2i Clock Period
C2i Clock Width High or Low
Frame Pulse Setup Time
Frame Pulse Hold Time
Frame Pulse Width
RxSF Output Delay
TxSF Hold Time
TxSF Setup Time
AAAA
AAAA
AAAA
AAAA
V
V
V
V
V
V
V
V
V
V
OH
OL
IH
IH
IH
IH
IL
IL
IL
IL
AAAA
AAAA
Characteristics
AAAA
AAAA
Bit
7
Frame 12/24
AAAA
AAAA
Frame 12/24
Bit
AAAA
AAAA
6
Figure 20 - Clock & Frame Pulse Timing for ST-BUS Streams
Figure 19 - Clock & Frame Alignment for ST-BUS Streams
AAAA
AAAA
t
Bit
FPS
5
AAAA
AAAA
Bit
4
AAAA
AAAA
t
FPH
†
AAAA
AAAA
- Clock Timing (Figures 19 & 20)
AAAA
AAAA
t
FPOD
t
t
t
Sym
TxSFH
t
TxSFS
t
FPOD
t
t
t
W20
FPW
FPS
t
p20
FPH
FPS
t
AAAA
AAAA
t
P20
TxSFH
t
FPW
AAAA
AAAA
Bit
Frame 1
7
AAAA
AAAA
Min
400
200
0.5
0.5
50
50
50
AAAA
AAAA
Bit
t
6
W20
AAAA
AAAA
Typ
Bit
488
244
5
AAAA
AAAA
‡
Bit
AAAA
AAAA
4
t
FPOD
124.5
124.5
AAAA
AAAA
Max
600
300
125
AAAA
AAAA
AAAA
AAAA
t
TxSFS
Frame 1
Units
AAAA
AAAA
ns
ns
ns
ns
ns
ns
Preliminary Information
s
s
AAAA
AAAA
Bit
7
AAAA
AAAA
Frame 2
t
t
50 pF Load
W20
P20
AAAA
AAAA
Test Conditions
Bit
6
= 488 ns
AAAA
AAAA
Bit
5
AAAA
AAAA
AAAA
AAAA
Bit
4
AAAA
AAAA
AA
AA