ICS843034 Datasheet, PDF (2/23 Pages) Integrated Circuit Systems – MULTI-RATE 3.3V, 2.5V LVPECL FREQUENCY SYNTHESIZER

Integrated
Circuit
Systems, Inc.
BLOCK DIAGRAM
PRELIMINARY
ICS843034
FEMTOCLOCKS™
MULTI-RATE 3.3V, 2.5V LVPECL FREQUENCY SYNTHESIZER
OE_A
VCO_SEL
XTAL_IN0
XTAL_OUT0
XTAL_IN1
XTAL_OUT1
CLK
nCLK
TEST_CLK
SEL1
SEL0
OE_B
MR
OE_REF
S_LOAD
S_DATA
S_CLOCK
nP_LOAD
M8:M0
NA2:NA0
NB2:NB0
OSC 0 0
OSC 0 1
10
11
0
PHASE
DETECTOR ^VCO
1
÷M
000 ÷1
001 ÷2
010 ÷3
011 ÷4
÷5
101 ÷6
÷8
111 ÷16
V_{CCO_A}
FOUTA0
nFOUTA0
001
V_{CCO_B}
011
101
FOUTB0
nFOUTB0
111 ÷16
V_{CCO_REF}
REF_CLK
C
I
L
TEST
843034AY
www.icst.com/products/hiperclocks.html
2
REV. A JULY 25, 2005