Mb15e07sl – FUJITSU MB15E07SL User Manual
Page 10
MB15E07SL
10
Table 5. Prescaler Data Setting
Table 6. Charge Pump Current Setting
Table 7. LD/fout Output Select Data Setting
(2) Relation between the FC Input and Phase Characteristics
The FC bit changes the phase characteristics of the phase comparator. Both the internal charge pump output
level (D
O
) and the phase comparator output (
φ
R,
φ
P) are reversed according to the FC bit. Also, the monitor pin
(f
OUT
) output is controlled by the FC bit. The relationship between the FC bit and each of D
O
,
φ
R, and
φ
P is shown
below.
Table 8. FC Bit Data Setting (LDS = “H”)
* : High-Z
SW
Prescaler divide ratio
H
32/33
L
64/65
CS
Current value
H
±
6.0 mA
L
±
1.5 mA
LDS
LD/
f
OUT
output signal
H
fout signal
L
LD signal
FC = High
FC = Low
D
O
φφφφ
R
φφφφ
P
LD/fout
D
O
φφφφ
R
φφφφ
P
LD/fout
fr > f
P
H
L
L
fout = fr
L
H
Z*
fout = fp
fr < f
P
L
H
Z*
H
L
L
fr = f
P
Z*
L
Z*
Z*
L
Z*