MB15F03 Fujitsu Microelectronics, Inc., MB15F03 Datasheet - Page 11

• Manufacturer Part Number: MB15F03
• Description: Dual Serial Input Pll Frequency Synthesizer
• Manufacturer: Fujitsu Microelectronics, Inc.

Note:
PHASE DETECTOR OUTPUT WAVEFORM
Do
Do
Phase error detection range = 2 to +2
Pulses on Do
LD output becomes low when phase error is t
LD output becomes high when phase error is t
t
t
t
WU
WU
WL
IF/RF
IF/RF
fr
fp
LD
(FC bit = High)
(FC bit = Low)
LD Output Logic Table
IF/RF
Locking state / Power saving state
Locking state / Power saving state
Unlocking state
Unlocking state
IF/RF
and t
< 16/fosc: i.e. t
> 8/fosc: i.e. t
WL
depend on OSCin input frequency as follows.
IF–PLL section
IF/RF
Z
Z
signals are output to prevent dead zone.
WU
WL
> 625ns when foscin = 12.8 MHz
< 1250ns when foscin = 12.8 MHz
t
WU
H
Locking state / Power saving state
Unlocking state
Locking state / Power saving state
Unlocking state
WL
WU
t
WL
or less and continues to be so for three cycles or more.
or more.
L
RF–PLL section
LD output
MB15F03
H
L
L
L
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