ICS84329 Datasheet, PDF (1/19 Pages) Integrated Circuit Systems – 700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER

Integrated
Circuit
Systems, Inc.
ICS84329
700MHZ, LOW JITTER, CRYSTAL-TO-3.3V
DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER
GENERAL DESCRIPTION
ICS
The ICS84329 is a general purpose, single output
high frequency synthesizer and a member of the
HiPerClockS™ _{HiPerClockS™family of High Performance Clock}
Solutions from ICS. The VCO operates at a fre-
quency range of 200MHz 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
• 1 differential 3.3V LVPECL output
• Series resonant crystal oscillator interface
• Output frequency range: 25MHz to 700MHz
• VCO range: 200MHz 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 (maximum)
• 3.3V supply voltage
• 0°C to 70°C ambient operating temperature
• Lead-Free package fully RoHS compliant
• Pin compatible with the MC12429
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 _ICS84329
16 ^M8
VCCA 1
28-Lead PLCC
15 ^M7
nc
2
V Package
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
S_LOAD 3
23 N1
ICS84329 _{22 N0}
VCCA 4
32-Lead LQFP
21 M8
Y package
VCCA 5 _{7mm x 7mm x 1.4mm} 20 M7
nc 6
Top View
19 M6
nc 7
18 M5
XTAL_IN ⁸
17 M4
9 10 11 12 13 14 15 16
84329AV
www.icst.com/products/hiperclocks.html
1
REV. D DECEMBER 15, 2004