ICS84329B Datasheet, PDF (1/19 Pages) Integrated Circuit Systems – 700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER

Integrated
Circuit
Systems, Inc.
ICS84329B
700MHZ, LOW JITTER, CRYSTAL-TO-3.3V
DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER
GENERAL DESCRIPTION
The ICS84329B is a general purpose, single
ICS
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.
BLOCK DIAGRAM
FEATURES
• 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
PIN ASSIGNMENT
OE
XTAL_IN
XTAL_OUT
OSC
÷ 16
PLL
PHASE DETECTOR
VCO
÷M
÷1
1
÷2
÷4
÷8
0
S_LOAD
S_DATA
S_CLOCK
nP_LOAD
M0:M8
N0:N1
CONFIGURATION
INTERFACE
LOGIC
25 24 23 22 21 20 19
S_CLOCK 26
18 N1
S_DATA 27
17 N0
S_LOAD 28 _ICS84329B 16 M8
VCCA 1
28-Lead PLCC
15 ^M7
nc
V Package
2 _{11.6mm x 11.4mm x 4.1mm} 14
M6
nc ₃
Top View
13 M5
XTAL_IN ₄
12 M4
FOUT
nFOUT
5 6 7 8 9 10 11
TEST
32 31 30 29 28 27 26 25
S_CLOCK 1
24 nc
S_DATA 2
23 N1
S_LOAD 3 ^ICS84329B 22 N0
VCCA 4
32-Lead LQFP
21 M8
Y package
VCCA
5
20
7mm x 7mm x 1.4mm
M7
nc 6
Top View
19 M6
nc 7
18 M5
XTAL_IN ⁸
17 M4
9 10 11 12 13 14 15 16
84329BV
www.icst.com/products/hiperclocks.html
1
REV. B JANUARY 18, 2006