Fujitsu MB15F74UL Data Sheet
MB15F74UL
4
■
BLOCK DIAGRAM
(9)
Clock
Data
LE
PS
RF
Xfin
RF
fin
RF
OSC
IN
fin
IF
PS
IF
V
CCIF
GND
IF
fp
IF
Do
IF
LD
IF
T1
T2
T1
T2
FC
RF
SW
RF
LDS
Do
RF
OR
LD
/
fout
LD
fr
fr
IF
fr
RF
fp
IF
fp
RF
fr
IF
fr
RF
fp
RF
C
N
N
1
C
N
N
2
AND
V
CCRF
GND
RF
Vp
RF
(19)
( )
(11)
(17)
(18)
(12)
(13)
(10)
(8)
(7)
(3)
(4)
(1)
(5)
(15)
GND
(20)
(16)
14
Xfin
IF
(2)
Vp
IF
(6)
Intermittent
mode control
(IF-PLL)
Prescaler
(IF-PLL)
(32/33, 64/65)
7 bit latch
11 bit latch
Binary 7-bit
swallow counter
(IF-PLL)
Binary 11-bit
programmable
counter (IF-PLL)
Phase
comp.
(IF-PLL)
Charge
pump
(IF-PLL)
Current
Switch
2 bit latch
14 bit latch
1 bit latch
Binary 14-bit pro-
grammable ref.
counter(IF-PLL)
counter(IF-PLL)
C/P setting
counter
Lock Det.
(IF-PLL)
2 bit latch
14 bit latch
1 bit latch
Binary 14-bit pro-
grammable ref.
counter (RF-PLL))
C/P setting
counter
Selector
Prescaler
(RF-PLL)
(64/65, 128/129)
Lock Det.
(RF-PLL)
Intermittent
mode control
(RF-PLL)
3 bit latch
FC
IF
SW
IF
LDS
3 bit latch
7 bit latch
11 bit latch
Binary 7-bit
swallow counter
(RF-PLL)
Binary 11-bit
programmable
counter (RF-PLL)
Phase
comp.
(RF-PLL)
Fast lock
Tuning
Charge
pump
(RF-PLL)
Current
Switch
Schmitt
circuit
Latch selector
Schmitt
circuit
Schmitt
circuit
23-bit shift register
Fast
lock
Tuning
LD
RF
fp
RF