MT9046 Zarlink Semiconductor, MT9046 Datasheet - Page 23

• Manufacturer Part Number: MT9046
• Description: T1/E1 System Synchronizer with Holdover
• Manufacturer: Zarlink Semiconductor

AC Electrical Characteristics - Performance
† See “Notes” following AC Electrical Characteristics tables.
* 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 CMOS thresholds.
* See Figure 12.
AC Electrical Characteristics - Timing Parameter Measurement Voltage Levels* -
with respect to ground (V
10
11
12
13
14
15
16
17
18
19
1
2
3
4
5
6
7
8
9
1
2
3
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: 8kHz,
19.44 MHz
Threshold Voltage
Rise and Fall Threshold Voltage High
Rise and Fall Threshold Voltage Low
SS
) unless otherwise stated
Characteristics
Characteristics
mode switch to Holdover
mode switch to Freerun
reference switch
mode switch to Normal
Zarlink Semiconductor Inc.
±0 ppm
± 0 ppm
±0 ppm
MT9046
1.544 MHz
2.048 MHz
±100 ppm
±100 ppm
±100 ppm
±32 ppm
±32 ppm
±32 ppm
23
Sym.
Sym.
-30 k
-30 k
-30 k
Min.
-100
-230
-198
-130
V
-0.2
-0.2
-0.2
V
-32
V
-0
HM
LM
T
+30 k
+30 k
+30 k
Max.
+100
+230
+198
+130
+0.2
+0.2
+0.2
+32
200
200
200
600
+0
30
50
45
0.5 V
0.7 V
0.3 V
CMOS
Units
ppm
ppm
ppm
ppm
ppm
ppm
ppm
ppm
ppm
ppm
ppm
ppm
us/s
ns
ns
ns
ns
ns
s
DD
DD
DD
5-9
5-9
5-9
1,2,4,6-9,41
1,2,4,6-9,41
1,2,4,6-9,41
1-3,6-9
1-3,6-9
1-3,6-9
1-3,6-15
1-3,6-15
1-2,4-15
1-,4,6-15
1-3,6-15
1-15,28
1-15,28
1-3,6,9,10-12
1-3,7,10-12
1-3,8,10-12
Conditions/
Data Sheet
Notes†
Voltages are
Units
V
V
V