zl50021 Zarlink Semiconductor, zl50021 Datasheet - Page 80

• Manufacturer Part Number: zl50021
• Description: Enhanced 4 K Digital Switch With Stratum 3 Dpll
• Manufacturer: Zarlink Semiconductor

Note 1:
Note 2:
Note 1:
Note 2:
15 - 0
15 - 0
External Read/Write Address: 004F
External Read/Write Address: 0050
Reset Value: 3B9A
MNU
Reset Value: 9DE8
MFU
Bit
Bit
15
15
31
15
The default value represents near upper limit for all reference frequencies, which is +9.913 ppm (Stratum 3 compliant
value), regardless of the reference frequency.
The name ’upper’ is based on frequency.
The default value represents far upper limit for all reference frequencies, which is +11.287 ppm (Stratum 3 compliant
value), regardless of the reference frequency.
The name ’upper’ is based on frequency.
MNU
MFU
14
14
30
14
MFU15 - 0
MNU31 - 16
Name
Table 43 - Multi-period Near Upper Limit Register - Upper 16 Bits (MPNULRU)
Name
Table 44 - Multi-period Far Upper Limit Register - Lower 16 Bits (MPFULRL)
MNU
MFU
H
13
13
29
13
H
(Note 1)
(Note 1)
MNU
MFU
12
12
28
12
Multiple-Period Far Upper Limit Bits: Total binary value of these bits and the
MPFULRU register bits defines the far upper limit for the multiple period count of any
reference input, minus 1. The unit of the binary value is measured in 100 MHz clock
periods.
Multiple-Period Near Upper Limit Bits: Total binary value of these bits and the
MPNULRL register bits defines the near upper limit for the multiple period count of
any reference input, minus 1. The unit of the binary value is measured in 100 MHz
clock periods.
H
H
MNU
MFU
11
11
27
11
MNU
MFU
10
10
26
10
MNU
MFU
25
9
9
9
Zarlink Semiconductor Inc.
ZL50021
MNU
MFU
24
8
8
8
80
MNU
MFU
23
7
7
7
Description
Description
MNU
MFU
22
6
6
6
MNU
MFU
21
5
5
5
MNU
MFU
20
4
4
4
MNU
MFU
19
3
3
3
MNU
MFU
18
2
2
2
Data Sheet
MNU
MFU
17
1
1
1
MNU
MFU
16
0
0
0