ICS8430-51 Datasheet, PDF (1/16 Pages) Integrated Circuit Systems – 600MHZ, LOW JITTER LVCMOS/ LVTTL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER

Integrated
Circuit
Systems, Inc.
PRELIMINARY
ICS8430-51
600MHZ, LOW JITTER
LVCMOS/ LVTTL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER
GENERAL DESCRIPTION
The ICS8430-51 is a general purpose, dual output
,&6
Crystal-to-3.3V Differential LVPECL High Frequency
HiPerClockS™ _{Synthesizer and a member of the HiPerClockS™}
family of High Performance Clock Solutions from
ICS. The ICS8430-51 has a selectable TEST_CLK
or crystal inputs. The VCO operates at a frequency range of
200MHz to 700MHz. With FOUT0 configured to divide the
VCO frequency by 2, output frequency steps as small as
2MHz can be achieved using a 16MHz crystal or reference clock.
FOUT1 provides an additional divide by 16 and 180° phase shift.
Output frequencies up to 600MHz can be programmed using
the serial or parallel interfaces to the configuration logic. The low
jitter and frequency range of the ICS8430-51 make it an ideal
clock generator for most clock tree applications.
FEATURES
• Dual differential 3.3V LVPECL outputs
• Selectable crystal oscillator interface
or LVCMOS/LVTTL TEST_CLK
• Maximum output frequency: 600MHz
• Crystal input frequency range: 14MHz to 25MHz
• VCO range: 200MHz to 700MHz
• Parallel or serial interface for programming counter
and output dividers
• RMS period jitter: 2.6ps (typical)
• Cycle-to-cycle jitter: 17ps (typical)
• 3.3V supply voltage
• 0°C to 70°C ambient operating temperature
• Industrial temperature information available upon request
BLOCK DIAGRAM
PIN ASSIGNMENT
VCO_SEL
XTAL_SEL
TEST_CLK
XTAL1
XTAL2
OSC
0
1
÷ 16
MR
S_LOAD
S_DATA
S_CLOCK
nP_LOAD
M0:M8
N0:N2
PLL
PHASE DETECTOR
VCO
0
÷N
÷M
1
÷2
÷16
CONFIGURATION
INTERFACE
LOGIC
M5
M6
M7
M8
N0
N1
N2
VEE
FOUT0
nFOUT0
FOUT1
nFOUT1
32 31 30 29 28 27 26 25
1
24
2
23
3
22
4 _ICS8430-51 21
5
20
6
19
7
18
8
17
9 10 11 12 13 14 15 16
XTAL1
TEST_CLK
XTAL_SEL
VCCA
S_LOAD
S_DATA
S_CLOCK
MR
TEST
32-Lead LQFP
7mm x 7mm x 1.4mm package body
Y Package
Top View
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.
8430AY-51
www.icst.com/products/hiperclocks.html
REV. D FEBRUARY 11, 2003
1