
84330AV
www.icst.com/products/hiperclocks.html
REV. B AUGUST 30, 2002
1
Integrated
Circuit
Systems, Inc.
ICS84330
700MHZ, LOW JITTER, CRYSTAL-TO-3.3V
DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER
PRELIMINARY
GENERAL DESCRIPTION
The ICS84330 is a general purpose, single output
high frequency synthesizer and a member of the
HiPerClockS family of High Performance Clock
Solutions from ICS. The VCO operates at a fre-
quency range of 200MHz to 700MHz. The VCO
and output frequency can be programmed using the serial or
parallel interfaces to the configuration logic. The output can be
configured to divide the VCO frequency by 1, 2, 4, and 8. Out-
put frequency steps from 250KHz to 2MHz can be achieved
using a 16MHz crystal depending on the output divider setting.
FEATURES
Fully integrated PLL, no external loop filter requirements
1 differential 3.3V LVPECL output
Crystal oscillator interface: 10MHz to 25MHz
Output frequency range: 25MHz to 700MHz
VCO range: 200MHz to 700MHz
Parallel or serial interface for programming M and N dividers
during power-up
RMS Period jitter: TBD
Cycle-to-cycle jitter: 35ps (maximum)
3.3V supply voltage
0°C to 70°C ambient operating temperature
Pin compatible with the MC12430
HiPerClockS
,&6
PIN ASSIGNMENT
BLOCK DIAGRAM
ICS84330
28-Lead PLCC
V Package
11.6mm x 11.4mm x 4.1mm
body package
Top View
25 24 23 22 21 20 19
5
6
7
8
9 10 11
26
27
28
1
2
3
4
18
17
16
15
14
13
12
S_CLOCK
S_DATA
S_LOAD
VCCA
FREF_EXT
XTAL_SEL
XTAL1
M3
M2
M1
M0
nP_LOAD
OE
X
T
AL2
V
EE
TEST
V
CC
V
EE
nFOUT
FOUT
V
CC
N1
N0
M8
M7
M6
M5
M4
OSC
XTAL1
XTAL2
FREF_EXT
XTAL_SEL
S_LOAD
S_DATA
S_CLOCK
nP_LOAD
M0:M8
N0:N1
VCO
PLL
TEST
CONFIGURATION
INTERFACE
LOGIC
÷ M
÷ 16
PHASE DETECTOR
÷ N
1
0
OE
1
0
÷ 2
FOUT
nFOUT
ICS84330
32-Lead LQFP
Y package
7mm x 7mm x 1.4mm
body package
Top View
32 31 30 29 28 27 26 25
9
10 11 12 13 14 15 16
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
17
n/c
N1
N0
M8
M7
M6
M5
M4
S_CLOCK
S_DATA
S_LOAD
VCCA
FREF_EXT
XTAL_SEL
XTAL1
nc
M3
M2
M1
M0
nP_LOAD
OE
X
T
AL2
V
EE
TEST
V
CC
V
CC
V
EE
nFOUT
FOUT
V
CC
The Preliminary Information presented herein represents a product in prototyping or pre-production. The noted characteristics are based on initial
product characterization. Integrated Circuit Systems, Incorporated (ICS) reserves the right to change any circuitry or specifications without notice.