MB15F78UL Datasheet, PDF (4/27 Pages) Fujitsu Component Limited. – Dual Serial Input PLL Frequency Synthesizer

MB15F78UL
s BLOCK DIAGRAM
VCCTX GNDTX VpTX
6 (4) 5 (3) 8 (6)
PSTX 7
(5)
Intermittent
mode control
(TX-PLL)
(1)
finTX 3
XfinTX 4
(2)
Prescaler
(TX-PLL)
(16/17, 32/33)
OSCIN 1
(19)
OR
(15)
finRX 17
XfinRX 16
(14)
Prescaler
(RX-PLL)
(32/33, 64/65)
PSRX 13
(11)
Intermittent
mode control
(RX-PLL)
3 bit latch
LDS SWTX FCTX
7 bit latch
Binary 7-bit
swallow counter
TX-PLL)
11 bit latch
Binary 11-bit
programmable
counter (TX-PLL)
Phase
comp.
(TX-PLL)
(CTpXhua-mPrgpLeL)CSuwrirtecnht
9 DoTX
(7)
2 bit latch
T1 T2
14 bit latch
Binary 14-bit pro-
grammable ref.
counter(TX-PLL)
frTX
fpTX
1 bit latch
C/P setting
counter
Lock Det.
(TX-PLL)
LDTX
Fast lock
Tuning
T1 T2
2 bit latch
frRX
Binary 14-bit pro-
grammable ref.
counter (RF-PLL)
14 bit latch
C/P setting
counter
1 bit latch
fpRX
AND
LD/fout
LD
frTX
frRX
fpTX
fpRX
LDRX
Lock Det.
(RX-PLL)
10 LD/
(8) fout
LDS SWRX FCRX
3 bit latch
Binary 7-bit
swallow counter
(RX-PLL)
7 bit latch
Binary 11-bit
programmable
counter (RX-PLL)
11 bit latch
Phase
comp.
(RX-PLL)
Charge
pump ^Current
(RX-PLL) ^Switch
11 DoRX
(9)
LE 18
(16)
(17)
Data 19
Clock 20
(18)
Schmitt
circuit
Schmitt
circuit
Schmitt
circuit
Latch selector
CC
N N ^{23-bit shift register}
12
O : TSSOP
( ) : BCC
4
2 (20)
GND
14 (12) 15 (13)
VCCRX GNDRX
12 (10)
VpRX