ICS84330
700MHZ, LOW JITTER, CRYSTAL-TO-3.3V
DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER
Integrated
Circuit
Systems, Inc.
GENERAL DESCRIPTION
FEATURES
The ICS84330 is a general purpose, single output • Fully integrated PLL, no external loop filter requirements
ICS
HiPerClockS™
high frequency synthesizer and a member of the
HiPerClockS™family of High Performance Clock
• Crystal oscillator interface: 10MHz to 25MHz
Solutions from ICS. The VCO operates at a fre-
• One differential 3.3V LVPECL output
• Output frequency range: 31.25MHz to 700MHz
• VCO range: 250MHz to 700MHz
• Parallel or serial interface for programming M and N
dividers during power-up
quency range of 250MHz to 700MHz.TheVCO and
output frequency can be programmed using the serial or parallel
interfaces to the configuration logic. The output can be config-
ured to divide the VCO frequency by 1, 2, 4, and 8. Output fre-
quency steps from 250kHz to 2MHz can be achieved using a
16MHz crystal depending on the output divider setting.
• RMS Period jitter: 5ps (maximum)
• Cycle-to-cycle jitter: 40ps (maximum)
• 3.3V supply voltage
• 0°C to 70°C ambient operating temperature
• Available in both standard and lead-free RoHS compliant
packages
• Industrial temperature information available upon request
PIN ASSIGNMENT
BLOCK DIAGRAM
25 24 23 22 21 20 19
OE
XTAL_IN
S_CLOCK
26
18
N1
N0
M8
M7
M6
M5
M4
1
0
OSC
S_DATA
S_LOAD
27
28
1
17
16
15
14
13
12
XTAL_OUT
FREF_EXT
ICS84330
28-Lead PLCC
V Package
VCCA
FREF_EXT
XTAL_SEL
÷ 16
11.6mm x 11.4mm x 4.1mm
body package
2
XTAL_SEL
3
TopView
XTAL_IN
4
PLL
PHASE DETECTOR
÷2
÷4
÷8
÷1
5
6
7
8
9 10 11
1
0
FOUT
VCO
÷ 2
nFOUT
TEST
÷ M
S_LOAD
S_DATA
CONFIGURATION
INTERFACE
LOGIC
S_CLOCK
nP_LOAD
32 31 30 29 28 27 26 25
24
1
2
3
4
5
6
7
8
S_CLOCK
S_DATA
S_LOAD
VCCA
n/c
M0:M8
N0:N1
23
22
21
20
19
18
17
N1
N0
M8
M7
M6
M5
M4
ICS84330
32-Lead LQFP
Y package
VCCA
7mm x 7mm x 1.4mm
body package
TopView
FREF_EXT
XTAL_SEL
XTAL_IN
9
10 11 12 13 14 15 16
84330BV
www.icst.com/products/hiperclocks.html
REV.C MAY 16, 2006
1