Integrated
Circuit
Systems, Inc.
ICS84329B
700MH
Z
, L
OW
J
ITTER
, C
RYSTAL
-
TO
-3.3V
D
IFFERENTIAL
LVPECL F
REQUENCY
S
YNTHESIZER
F
EATURES
•
Fully integrated PLL, no external loop filter requirements
•
One differential 3.3V LVPECL output
•
Parallel resonant crystal oscillator interface
•
Output frequency range: 31.25MHz to 700MHz
•
VCO range: 250MHz to 700MHz
•
Parallel interface for programming counter
and output dividers during power-up
•
Serial 3 wire interface
•
RMS Period jitter: 5.5ps (maximum)
•
Cycle-to-cycle jitter: 35ps (maximuml)
•
3.3V supply voltage
•
0°C to 70°C ambient operating temperature
•
Available in both standard and lead-free RoHS compliant
packages
G
ENERAL
D
ESCRIPTION
The ICS84329B is a general purpose, single
output high frequency synthesizer and a
HiPerClockS™
member of the HiPerClockS™ family of High
Performance Clock Solutions from ICS. The
VCO operates at a frequency range of 250MHz
to 700MHz. The VCO frequency is programmed in steps equal
to the value of the crystal frequency divided by 16. 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.
Output frequency steps as small as 125kHz to 1MHz
can be achieved using a 16MHz crystal depending on the
output dividers.
IC
S
B
LOCK
D
IAGRAM
OE
P
IN
A
SSIGNMENT
FOUT
V
CC
25 24 23 22 21 20 19
S_CLOCK
26
27
28
1
18
17
N1
N0
M8
M7
M6
M5
M4
nFOUT
TEST
V
CC
V
EE
V
EE
XTAL_IN
OSC
XTAL_OUT
÷
16
S_DATA
S_LOAD
V
CCA
nc
nc
ICS84329B
16
28-Lead PLCC
15
V Package
2
14
11.6mm x 11.4mm x 4.1mm
3
13
Top View
4
5
6
OE
PLL
PHASE DETECTOR
1
VCO
÷
M
0
÷1
÷2
÷4
÷8
XTAL_IN
12
7
nP_LOAD
8
M0
9 10 11
M1
M2
M3
FOUT
nFOUT
XTAL_OUT
nFOUT
FOUT
TEST
S_LOAD
S_DATA
S_CLOCK
nP_LOAD
M0:M8
N0:N1
CONFIGURATION
INTERFACE
LOGIC
V
CC
V
CC
V
CC
V
EE
V
EE
TEST
S_CLOCK
S_DATA
S_LOAD
V
CCA
V
CCA
nc
nc
XTAL_IN
1
2
3
4
5
6
7
8
32 31 30 29 28 27 26 25
24
23
nc
N1
N0
M8
M7
M6
M5
M4
ICS84329B
22
32-Lead LQFP
21
Y package
20
7mm x 7mm x 1.4mm
19
Top View
18
17
9 10 11 12 13 14 15 16
XTAL_OUT
OE
nP_LOAD
M0
M1
M2
M3
nc
84329BV
www.icst.com/products/hiperclocks.html
1
REV. B JANUARY 18, 2006
ICS [ INTEGRATED CIRCUIT SYSTEMS ]
