MT9046 Zarlink Semiconductor, MT9046 Datasheet - Page 2

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

The MT9046 generates ST-BUS clock and framing signals that are phase locked to either a 19.44 MHz,
2.048 MHz, 1.544 MHz, or 8 kHz input reference.
The MT9046 is compliant with AT&T TR62411 and Bellcore GR-1244-CORE Stratum 4 Enhanced, and Stratum 4
and ETSI ETS 300 011 interfaces. It will meet the jitter tolerance, jitter transfer, intrinsic jitter, frequency accuracy,
capture range, phase change slope frequency and MTIE requirements for these specifications.
FLOCK
LOCK
C1.5o
OSCo
TCLR
C19o
OSCi
F16o
RSP
SEC
RST
TSP
Vdd
C2o
V
C4o
Vdd
PRI
Vss
F0o
F8o
Vss
NC
SS
IC
Figure 2 - Pin Connections
Zarlink Semiconductor Inc.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1
2
3
4
5
6
7
8
9
MT9046
SSOP
2
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
TMS
TCK
TRST
TDI
TDO
NC
IC
FS1
FS2
IC
RSEL
MS1
MS2
Vdd
IC
IC
NC
Vss
PCCi
HOLDOVER
Vdd
C6o
C16o
C8o
Data Sheet