MB15F86UL Datasheet, PDF (4/28 Pages) Fujitsu Component Limited. – Fractional-N PLL Frequency Synthesizer

MB15F86UL
s BLOCK DIAGRAM
PSIF ⁷
(5)
PSIF
finIF
3
(1)
4
XfinIF ₍₂₎
Prescaler
(IF-PLL)
8/9, 16/17
OSCIN
1
(19)
OR
4-bit latch 11-bit latch
Binary 4-bit Binary 11-bit
swallow counter programmable
(IF-PLL) counter (IF-PLL)
VCCIF GNDIF
6 (4) 5 (3)
VpIF
8 (6)
Phase
comp.
(IF-PLL)
Charge
pump
(IF-PLL)
9 _DoIF
(7)
Binary 14-bit
programmable
ref. counter
(IF-PLL)
14-bit latch
Binary 8-bit
programmable
ref. counter
(RF-PLL)
8-bit latch
6-bit latch
Q1 Q2 Q3 Q4 Q5
Lock Det.
(IF-PLL)
Selector
LDIF
LDRF
frIF
frRF
fpIF
fpRF
10
(8) ^LD/fout
10-bit latch
Lock
Det.
(RF-PLL)
17
finRF ₍₁₅₎
16
XfinRF ₍₁₄₎
Prescaler
(RF-PLL)
16/17
32/33
MD2
Q1~Q5 CNT
Fractional Counter
3 to 16
13
PSRF ₍₁₁₎
PSRF
Binary 5-bit
Binary 10-bit
swallow counter _programmable
(RF-PLL) _{counter (RF-PLL)}
5-bit latch 10-bit latch
LE ¹⁸
(16)
Schmitt
circuit
Data ¹⁹
(17)
Schmitt
circuit
Clock
20
(18)
Schmitt
circuit
Latch selector
C CC
N NN
1 23
23-bit shift
register
2 (20)
GND
frRF
frRF
Selector
fpRF
fpRF
Phase
comp.
(RF-PLL)
Charge
OR
pump
(RF-PLL)
SC
(RF-PLL)
11
(9)
DoRF
FFFF
1234
4-bit latch
14 (12)
VccRF
15 (13) 12 (10)
GNDRF VpRF
O : TSSOP 20
( ) : BCC 20
4