QPSK Demodulator MT312
Bit
Symbol Rate Sub Range MBaud
11
10
9
SYS CLK /2 to SYS CLK/3
SYS CLK/3 to SYS CLK/4
SYS CLK/4 to SYS CLK/6
SYS CLK/6 to SYS CLK/8
SYS CLK/8 to SYS CLK/12
SYS CLK/12 to SYS CLK/16
SYS CLK/16 to SYS CLK/24
SYS CLK/24 to SYS CLK/32
SYS CLK /32 to SYS CLK/48
SYS CLK/48 to SYS CLK/64
SYS CLK /64 to SYS CLK/96
SYS CLK/96 to SYS CLK/128
8
7
6
5
4
3
2
1
0
Table 3 - Symbol sweep ranges for general case
Bit
Symbol Rate Sub Range MBaud
11
10
9
45 - 30
30 - 22.5
22.5 - 15
8
15 - 11.25
7
11.25 - 7.5
6
7.5 - 5.625
5
5.625 - 3.75
3.75 - 2.8125
2.81325 - 1.875
1.875 - 1.40625
1.40625 - 0.9375
0.9375 - 0.703125
4
3
2
1
0
Table 4 - Symbol sweep ranges for 90MHz system clock
37
ZARLINK [ ZARLINK SEMICONDUCTOR INC ]
