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MH89770 Datasheet(PDF) 28 Page - Mitel Networks Corporation

Part # MH89770
Description  T1/ESF Framer & Interface Preliminary Information
PDF  36 Pages
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Manufacturer  MITEL [Mitel Networks Corporation]
Direct Link  http://www.mitel.com
Logo MITEL - Mitel Networks Corporation

MH89770 Datasheet(HTML) 28 Page - Mitel Networks Corporation

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4-152
MH89770
Preliminary Information
NB: Frame Pulse is repeated every 125
µs 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.
Figure 19 - Clock & Frame Alignment for ST-BUS Streams
Figure 20 - Clock & Frame Pulse Timing for ST-BUS Streams
AC Electrical Characteristics† - Clock Timing (Figure 19 & 20)
Characteristics
Sym
Min
Typ‡
Max
Units
Test Conditions
1
C2i Clock Period
tp20
400
488
600
ns
2
C2i Clock Width High or Low
tW20
200
244
300
ns
tP20 = 488 ns
3
Frame Pulse Setup Time
tFPS
50
ns
4
Frame Pulse Hold Time
tFPH
50
ns
5
Frame Pulse Width
tFPW
50
ns
6
RxSF Output Delay
tFPOD
125
ns
50pF Load
7
TxSF Hold Time
tTxSFH
0.5
124.5
µs
8
TxSF Setup Time
tTxSFS
0.5
124.5
µs
F0i
RxSF
TxSF
C2i
ST-BUS
BIT CELLS
Frame 12/24
Frame 1
Frame 2
Bit
7
Bit
6
Bit
5
Bit
4
Bit
7
Bit
6
Bit
5
Bit
4
Bit
7
Bit
6
Bit
5
Bit
4
C2i
F0i
RxSF
F0i
C2i
TxSF
VIH
VIL
VIH
VIL
VOH
VOL
VIH
VIL
VIH
VIL
tP20
tW20
tFPS
tFPH
tFPS
tFPOD
tFPOD
tTxSFH
tTxSFS
Frame 12/24
Frame 1
tFPW
tW20



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