MT9044 Mitel Networks Corporation, MT9044 Datasheet - Page 22

• Manufacturer Part Number: MT9044
• Description: T1/E1/OC3 System Synchronizer
• Manufacturer: Mitel Networks Corporation

MT9044
AC Electrical Characteristics - Performance
† See "Notes" following AC Electrical Characteristics tables.
AC Electrical Characteristics - Timing Parameter Measurement Voltage Levels* -
with respect to ground (V
* Supply voltage and operating temperature are as per Recommended Operating Conditions.
* Timing for input and output signals is based on the worst case result of the combination of TTL and CMOS thresholds.
* See Figure 18.
22
10
11
12
13
14
15
16
17
18
19
1
2
3
1
2
3
4
5
6
7
8
9
ALL SIGNALS
Threshold Voltage
Rise and Fall Threshold Voltage High
Rise and Fall Threshold Voltage Low
Freerun Mode accuracy with OSCi at:
Holdover Mode accuracy with OSCi at:
Capture range with OSCi at:
Phase lock time
Output phase continuity with:
MTIE (maximum time interval error)
Output phase slope
Reference input for Auto-Holdover with:
Characteristics
SS
t
IRF,
Characteristics
) unless otherwise stated.
t
Figure 18 - Timing Parameter Measurement Voltage Levels
ORF
mode switch to Holdover
mode switch to Freerun
mode switch to Normal
reference switch
1.544MHz
2.048MHz
Timing Reference Points
100ppm
100ppm
100ppm
32ppm
32ppm
32ppm
0ppm
0ppm
0ppm
8kHz
Sym
V
V
V
HM
LM
Sym
T
Schmitt
-0.05
-0.05
-0.05
-100
-230
-198
-130
-18k
-36k
-36k
Min
-32
-0
1.5
2.3
0.8
+0.05
+0.05
+0.05
+100
+230
+198
+130
+18k
+36k
+36k
Max
+32
200
200
200
600
+0
30
50
45
t
IRF,
TTL
1.5
2.0
0.8
Units
t
ppm
ppm
ppm
ppm
ppm
ppm
ppm
ppm
ppm
ppm
ppm
ppm
us/s
ORF
Advance Information
ns
ns
ns
ns
ns
s
Conditions/Notes†
5-8
5-8
5-8
1,2,4,6-8,40
1,2,4,6-8,40
1,2,4,6-8,40
1-3,6-8
1-3,6-8
1-3,6-8
1-3,6-14
1-3,6-14
1-2,4-14
1-,4,6-14
1-3,6-14
1-14,27
1-14,27
1-3,6,9-11
1-3,7,9-11
1-3,8-11
0.5V
0.7V
0.3V
CMOS
DD
DD
DD
Voltages are
V
V
Units
V
HM
LM
T
V
V
V