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MT9171 Datasheet, PDF (19/25 Pages) Mitel Networks Corporation – ISO2-CMOS ST-BUS™ FAMILY Digital Subscriber Interface Circuit Digital Network Interface Circuit
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Advance Information
MT9171/72
AC Electrical Characteristics† - Data Timing - DN Mode (Figure 19)
Characteristics
Sym Min Typ* Max Units
Test Conditions
1 DSTi/CDSTi Data Setup Time
tRS
30
2 DSTi/CDSTi Data Hold Time
tRH
50
3a DSTo/CDSTo Data Delay
tTD
3b DSTo/CDSTo High Z to Data Delay tZTD
† Timing is over recommended temperature & power supply voltage ranges.
ns
ns
120
ns CL=40pF
140
ns CL=40pF
Bit
Stream
Bit Cell
2.0V
C4
0.8V
DSTi 2.0V
CDSTi
0.8V
tTD
tZTD
DSTo 2.4V
CDSTo 0.4V
tRS
tRH
tTD
Figure 19 - Data Timing For DN Mode
AC Electrical Characteristics† - Data Timing - MOD Mode (Figure 20)
Characteristics
80 kbit/s
160 kbit/s
Sym
Units
Min Typ* Max Min Typ* Max
Test
Conditions
1 Di/CDi Data Setup Time
tDS 150
150
ns
2 Di/CDi Data Hold Time
tDH 4.5
2.5
µs
3 Do Data Delay Time
tRD
70
70
ns CL=40pF
4 CDo Data Delay Time
tTD
70
70
ns CL=40pF
† Timing is over recommended temperature & power supply voltage ranges.
* Typical figures are at 25°C, for design aid only: not guaranteed and not subject to production testing.
Performance Characteristics of the MT9171 DSIC
Characteristics
Sym Min Typ* Max Units
Test Conditions
1 Allowable Attenuation for Bit Error
Rate of 10-6 (Note 1)
Afb
0
30 25
2 Line Length at 80 kbit/s -24 AWG L80
3.0
-26 AWG
2.2
3 Line Length at 160 kbit/s -24 AWG L160
3.0
-26 AWG
2.2
dB SNR≥16.5dB (300kHz
bandlimited noise)
km attenuation - 6.9 dB/km
attenuation - 10.0 dB/km
km attenuation - 8.0 dB/km
attenuation - 11.5 dB/km
Performance Characteristics of the MT9172 DNIC
Characteristics
Sym Min Typ* Max Units
1 Allowable Attenuation for Bit Error
Rate of 10-6 (Note 1)
Afb
0
40
33
dB
2 Line Length at 80 kbit/s -24 AWG L80
5.0
km
-26 AWG
3.4
3 Line Length at 160 kbit/s -24 AWG L160
4.0
km
-26 AWG
3.0
Note 1: Attenuation measured
* Typical figures are at 25°C, for
from Master LOUT to Slave LIN
design aid only: not guaranteed
at 3/4baud frequency.
and not subject to production
testing.
Test Conditions
SNR≥16.5dB (300kHz
bandlimited noise)
attenuation - 6.9 dB/km
attenuation - 10.0 dB/km
attenuation - 8.0 dB/km
attenuation - 11.5 dB/km
9-133
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