ICS813078I Datasheet, PDF (2/26 Pages) Integrated Device Technology – FEMTOCLOCKS™ VCXO-PLL FREQUENCY GENERATOR FOR WIRELESS INFRASTRUCTURE EQUIPMENT

ICS813078I
FEMTOCLOCKS™ VCXO-PLL FREQUENCY GENERATOR
Block Diagram
ISET
XTAL_IN
XTAL_OUT
f_XTAL = 30.72MHz
nSTOPA
f_OUT
CLK0
nCLK0
CLK1
REF_SEL
R[2:0]
FLM
MF
BYPASS[1:0]
nSTOPB
NA[1:0]
NB[1:0]
NC[1:0]
nMR
nSTOPC
f_REF
0_{0 P}
÷1, ÷2,
1 _{÷4, ÷5,}
÷125
3 _LUT
f_PD
PD
f_VCXO
CP VCXO
11
10
f_VCO
Femto
PLL
0x
MV
÷1, ÷2, ÷12,
÷192, ÷256, ÷384
Internal VCXO
÷16,
÷20
Multiplier
NA
÷2, ÷4
÷5, ÷8
NB
÷1, ÷4
÷5, ÷8
2
NC
÷4, ÷5,
÷8, ÷16
LOCK
QA0
nQA0
QA1
nQA1
QA2
nQA2
QB0
nQB0
QB1
nQB1
QC0
QC1
QC2
QC3
FEMTOCLOCKS™ VCXO-PLL FREQUENCY GENERATOR
2
ICS813078BYI REV. A OCTOBER 6, 2008