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ICS8430AY-51中文资料

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PRELIMINARY

Integrated Circuit

ICS8430AY-51中文资料

Systems, Inc.

600MH Z , LOW JITTER

LVCMOS/ LVTTL-TO -3.3V LVPECL FREQUENCY SYNTHESIZER

F EATURES

•Dual differential 3.3V LVPECL outputs•Selectable crystal oscillator interfaceor 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 counterand 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

ICS8430-51

G ENERAL D ESCRIPTION

The ICS8430-51 is a general purpose, dual outputCrystal-to-3.3V Differential LVPECL High Frequency

Synthesizer and a member of the HiPerClockS™

family of High Performance Clock Solutions fromICS. The ICS8430-51 has a selectable TEST_CLK

or crystal inputs. The VCO operates at a frequency range of200MHz to 700MHz. With FOUT0 configured to divide theVCO frequency by 2, output frequency steps as small as2MHz 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 usingthe serial or parallel interfaces to the configuration logic. The lowjitter and frequency range of the ICS8430-51 make it an idealclock generator for most clock tree applications.

B LOCK D IAGRAM

P IN A SSIGNMENT

VCO_SEL

nP_LOAD

XTAL2

M4

M3

M2

M1

M0

32 31 30 29 28 27 26 25

M5M6M7M8N0N1

12345678

9 10 11 12 13 14 15 16TEST

V CC

FOUT1

nFOUT1

V CCO

FOUT0

nFOUT0

V EE

2423222120191817

XTAL1TEST_CLKXTAL_SELV CCA S_LOADS_DATAS_CLOCKMR

ICS8430-51

N2V EE

32-Lead LQFP

7mm x 7mm x 1.4mm package body

Y PackageT op View

ICS8430AY-51中文资料

ICS8430AY-51中文资料

The Prel
iminary Information presented herein represents a product in prototyping or pre-production. The noted characteristics are based on initialproduct characterization. Integrated Circuit Systems, Incorporated (ICS) reserves the right to change any circuitry or specifications without notice.

The Preliminary Information presented herein represents a product in prototyping or pre-production. The noted characteristics are based on initialproduct characterization. Integrated Circuit Systems, Incorporated (ICS) reserves the right to change any circuitry or specifications without notice.

8430AY-51

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1

REV. D FEBRUARY 11, 2003

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