MB15F03SL Fujitsu Media Devices, MB15F03SL Datasheet - Page 13
MB15F03SL
Manufacturer Part Number
MB15F03SL
Description
Dual Serial Input PLL Frequency Synthesizer
Manufacturer
Fujitsu Media Devices
Datasheet
1.MB15F03SL.pdf
(25 pages)
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Notes:
PHASE COMPARATOR OUTPUT WAVEFORM
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
WU
> 2/fosc: i. e.
< 4/fosc: i. e.
and t
fr
fp
LD
D
D
LD Output Logic Table
OIF RF
OIF RF
IF RF
IF RF
(FC bit = High)
(FC bit = Low)
Locking state/Power saving state
Locking state/Power saving state
Unlocking state
Unlocking state
WL
depend on OSCin input frequency as follows.
IF/RF
t
t
WU
WL
IF-PLL section
signals are output to prevent dead zone.
Z
Z
< 312.5 ns when foscin = 12.8 MHz
> 156.3 ns when foscin = 12.8 MHz
H
t
WU
WU
WL
Locking state/Power saving state
Unlocking state
Locking state/Power saving state
Unlocking state
or more.
or less and continues to be so for three cycles or more.
L
t
WL
RF-PLL section
MB15F03SL
LD output
H
L
L
L
13