SP8858
PHASE
DETECTOR GAIN
CONTROL
(SEE TABLE 3)
G2 G1 2
18
2
17
2
16
2
15
2
14
2
13
2
12
2
11
2
10
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
MSB
LSB
C2 C1
15-BIT PROGRAMMABLE COUNTER (M COUNTER)
PHASE
DETECTOR
SENSE BIT
4-BIT
PROGRAMMABLE
COUNTER
(A COUNTER)
Fig. 6a F1 or F2 word, bit allocation with
4
16/17 selected
PHASE
DETECTOR GAIN
CONTROL
(SEE TABLE 3)
MUST BE ZERO
LSB
MSB
G2 G1 2
17
2
16
2
15
2
14
2
13
2
12
2
11
2
10
2
9
2
8
2
7
2
6
2
5
2
4
2
3
0
2
2
2
1
2
0
15-BIT PROGRAMMABLE COUNTER (M COUNTER)
PHASE
DETECTOR
SENSE BIT
Fig. 6b F1 or F2 word, bit allocation with
4
8/9 selected
DUAL MODULUS
N RATIO SELECT
0 =
416/17
1 =
48/9
MSB
LSB
PD1 PD2
2
12
2
11
2
10
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
PHASE
DETECTOR
BISTABLE
CONTROL
(SEE TABLE 4)
DATA
22 BITS
CLOCK
22 CLOCKS
ENABLE
DATA LOADS ON FALLING EDGES
13-BIT PROGRAMMABLE COUNTER (R COUNTER)
CONTROL
LOGIC
(SEE
TABLE 3)
Fig. 6c Reference word bit allocation
F1 WORD
0 0
F2 WORD
22 BITS
1 0
22 CLOCKS
16 CLOCKS
Fig. 6d Data load sequence
Fig. 6 Data formats
C
2
C
1
REF WORD
16 BITS
1 1
3-BIT
CONTROL
PROGRAMMABLE LOGIC
COUNTER
(SEE
(A COUNTER) TABLE 3)
CONTROL
LOGIC
(SEE
TABLE 3)
C2 C1
7
MITEL [ MITEL NETWORKS CORPORATION ]
