MB15F74UL Datasheet, PDF (4/26 Pages) Fujitsu Component Limited. – Dual Serial Input PLL Frequency Synthesizer

MB15F74UL
s BLOCK DIAGRAM
VCCIF GNDIF
(4) (3)
VpIF
(6)
PSIF (5)
Intermittent
mode control
(IF-PLL)
finIF (1)
XfinIF (2)
Prescaler
(IF-PLL)
(32/33, 64/65)
OSCIN (19)
OR
finRF (15)
XfinRF (14)
Prescaler
(RF-PLL)
(64/65, 128/129)
PSRF (11)
Intermittent
mode control
(RF-PLL)
3 bit latch
7 bit latch 11 bit latch
Binary 7-bit
Binary 11-bit
swallow counter programmable
(IF-PLL) counter (IF-PLL)
fpIF
2 bit latch
T1 T2
14 bit latch
Binary 14-bit pro-
grammable ref.
counter(IF-PLL)
1 bit latch
C/P setting
counter
frIF
T1 T2
2 bit latch
frRF
Binary 14-bit pro-
grammable ref.
counter (RF-PLL))
14 bit latch
C/P setting
counter
1 bit latch
fpRF
Phase
comp.
(IF-PLL)
Charge
pump
(IF-PLL)
Current
Switch
(7) DoIF
Lock Det.
(IF-PLL)
LDIF
AND
LDRF
Lock Det.
(RF-PLL)
Fast
lock
Tuning
Selector
LD
frIF
frRF
fpIF
fpRF
(8) LD/
fout
3 bit latch
Binary 7-bit
Binary 11-bit
Phase
swallow counter programmable
comp.
(RF-PLL) counter (RF-PLL)
(RF-PLL)
fpRF
7 bit latch
11 bit latch
Charge
pump
Current
Switch
(RF-PLL)
(9) DoRF
LE (16)
Schmitt
circuit
Latch selector
Data (17)
Clock(18)
Schmitt
circuit
Schmitt
circuit
CC
N N _{23-bit shift register}
12
(20)
GND
(12) (13)
VCCRF GNDRF
(10)
VpRF
4