MB15U10 Datasheet, PDF (4/19 Pages) Fujitsu Component Limited. – Dual Serial Input PLL Frequency Synthesizer On-Chip 1.1 GHz Prescaler

MB15U10
s BLOCK DIAGRAM
VDD1
4
18 _VP
fin1 ⁶
PS ⁵
Power sav-
ing circuit
PS1
17-bit latch (comparisonal division)
Main counter
fp1
(binary 17-bit)
PLL1
Phase
comparator
LD1
Charge
pump
CR1
ISET
3 _Do1
OSCin ⁸
OSCout 10
fin2 ¹⁵
LE ¹³
Data ¹²
Clock ¹¹
Crystal
oscillator
fr1
Reference counter
fr2
+1/+2
SR
TS
14-bit latch (referencial division)
Power sav-
ing circuit
PS2
17-bit latch (comparisonal division)
P0
LD2
Selector
OLA, B
fr2
Selector
fp1
fp2
Main counter
(binary 17-bit)
fp2
Phase
comparator
PLL2
P0
P1, 2, 3
10-bit latch
OLA, B
CR1, 2
Latch selector
Charge
pump
CR2
Shift register (21-bit)
14
VDD2
7
DGND
16
AGND
19 _P0/LD
9 _P3/fr2
1 _P1/fp1
2 _P2/fp2
17 _Do2
20 _ISET
4