MB15F02L Fujitsu Media Devices, MB15F02L Datasheet - Page 12
MB15F02L
Manufacturer Part Number
MB15F02L
Description
Dual Serial Input PLL Frequency Synthesizer
Manufacturer
Fujitsu Media Devices
Datasheet
1.MB15F02L.pdf
(24 pages)
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12
MB15F02L
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
IF/RF
IF/RF
WU
WU
WL
fr
fp
LD
(FC bit = High)
(FC bit = Low)
LD Output Logic Table
IF/RF
IF/RF
and t
Locking state / Power saving state
Locking state / Power saving state
Unlocking state
Unlocking state
8/fosc: i.e. t
4/fosc: i.e. t
WL
depend on OSCin input frequency as follows.
IF-PLL section
IF/RF
Z
Z
WL
WU
signals are output to prevent dead zone.
625.0 ns when foscin = 12.8 MHz
312.5 ns 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
RF-PLL section
or less and continues to be so for three cycles or more.
or more.
L
LD output
H
L
L
L