Preliminary Information
MT9173/74
AC Electrical Characteristics† - Data Timing - DN Mode (Figure 19)
Characteristics
DSTi/CDSTi Data Setup Time
DSTi/CDSTi Data Hold Time
Sym
tRS
Min
30
Typ* Max
Units
ns
Test Conditions
1
2
-10
10
tRH
50
ns
3a DSTo/CDSTo Data Delay
tTD
60
60
120
140
ns
CL=40pF
CL=40pF
3b DSTo/CDSTo High Z to Data Delay
tZTD
ns
† 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.
Bit
Stream
Bit Cell
2.0V
C4
0.8V
2.0V
DSTi
CDSTi
0.8V
t
TD
t
t
t
t
RS
TD
RH
ZTD
2.4V
0.4V
DSTo
CDSTo
Figure 19 - Data Timing For DN Mode
AC Electrical Characteristics† - Data Timing - MOD Mode (Figure 20)
80 kbit/s
160 kbit/s
Test
Conditions
Characteristics
Sym
Units
Min Typ* Max Min Typ* Max
1 Di/CDi Data Setup Time
2 Di/CDi Data Hold Time
3 Do Data Delay Time
4 CDo Data Delay Time
tDS
tDH
tRD
tTD
150
4.5
150
2.5
ns
µs
70
70
70
70
ns CL=40pF
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 MT9173 DSIC
Characteristics
Sym Min Typ*
Max
Units
Test Conditions
SNR≥16.5dB (300kHz
bandlimited noise)
1
2
3
Allowable Attenuation for Bit Error
Afb
0
30
25
dB
-6
Rate of 10 (Note 1)
Line Length at 80 kbit/s -24 AWG
-26 AWG
L80
3.0
2.2
km
km
attenuation - 6.9 dB/km
attenuation - 10.0 dB/km
Line Length at 160 kbit/s -24 AWG
-26 AWG
L160
3.0
2.2
attenuation - 8.0 dB/km
attenuation - 11.5 dB/km
Performance Characteristics of the MT9174 DNIC
Characteristics
Sym Min Typ*
Max
Units
Test Conditions
1
2
3
Allowable Attenuation for Bit Error
Rate of 10 (Note 1)
Afb
0
40
33
dB
SNR≥16.5dB
bandlimited noise)
(300kHz
-6
Line Length at 80 kbit/s -24 AWG
-26 AWG
L80
5.0
3.4
km
km
attenuation - 6.9 dB/km
attenuation - 10.0 dB/km
Line Length at 160 kbit/s -24 AWG
-26 AWG
L160
4.0
3.0
attenuation - 8.0 dB/km
attenuation - 11.5 dB/km
Note 1: Attenuation measured from Master L
to Slave L at 3/4baud frequency.
OUT
IN
* Typical figures are at 25°C, for design aid only: not guaranteed and not subject to production testing.
9-155
MITEL [ MITEL NETWORKS CORPORATION ]
