Anritsu MP1763C - Manual (Page 64)

5-2
Section 5 PRINCIPLES OF OPERATION
Fig. 5.1-1 Mark Ratio 1/4, 1/8 Pattern Generator
Fig. 5.1-2 Example of Pseudorandom Pattern
1 2 3 4 5 6 1/2
Mark ratio
1/4 (1 bit shift)
1/8 (1 bit shift)
1/4 (3 bits shift)
1/8 (3 bits shift)
Shift register
PRBS pattern
generator
(See Table 5.1-1)
DATA1
DATA2
DATA3
DATA4
DATA5
DATA6
DATA7
DATA8
(2 /8)-1 bit N
2 - 1 BIT
N
For example, when PRBS 2 -1, 2 /8=4096 bits.
15 15
2 /8 bits N
leading
2 /8 bits N
leading
2 /8 bits N
leading
2 /8 bits N
leading
2 /8 bits N
leading
2 /8 bits N
leading
2 /8 bits N
leading