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ICS84320AYI-01 Datasheet(PDF) 1 Page - Integrated Circuit Systems |
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ICS84320AYI-01 Datasheet(HTML) 1 Page - Integrated Circuit Systems |
1 / 5 page 84320AYI-01 www.icst.com/products/hiperclocks.html REV. A AUGUST 11, 2005 1 Integrated Circuit Systems, Inc. ICS84320I-01 780MHZ, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER GENERAL DESCRIPTION The ICS84320I-01 is a general purpose, dual output Cr ystal-to-3.3V Differential LVPECL High Frequency Synthesizer and a member of the HiPerClockS™ family of High Performance Clock Solutions from ICS. The ICS84320I-01 has a selectable TEST_CLK or crystal inputs. The VCO operates at a frequency range of 620MHz to 780MHz. The VCO frequency is programmed in steps equal to the value of the input reference or crystal frequency. The VCO and output frequency can be programmed using the serial or parallel interfaces to the configuration logic. The low phase noise characteristics of the ICS84320I-01 make it an ideal clock source for 10 Gigabit Ethernet, SONET, and Serial Attached SCSI applications. BLOCK DIAGRAM FEATURES • Dual differential 3.3V LVPECL outputs • Selectable crystal oscillator interface or LVCMOS/LVTTL TEST_CLK • Output frequency range: 77.5MHz to 780MHz • Crystal input frequency range: 14MHz to 40MHz • VCO range: 620MHz to 780MHz • Parallel or serial interface for programming counter and output dividers • Duty cycle: 44% - 56% (N > 1) • RMS period jitter: 2.0ps (typical) • RMS phase jitter at 155.52MHz, using a 38.88MHz crystal (12kHz to 20MHz): 2.38ps (typical) • RMS phase noise at 155.52MHz (typical) Offset Noise Power 100Hz ................ -90.5 dBc/Hz 1 kHz ............... -114.2 dBc/Hz 10 kHz ............... -123.6 dBc/Hz 100 kHz ............... -128.1 dBc/Hz • 3.3V supply voltage • -40°C to 85°C ambient operating temperature • Available in both, Standard and RoHS/Lead-Free compliant packages 32 31 30 29 28 27 26 25 9 10 11 12 13 14 15 16 1 2 3 4 5 6 7 8 24 23 22 21 20 19 18 17 XTAL_OUT TEST_CLK XTAL_SEL VCCA S_LOAD S_DATA S_CLOCK MR M5 M6 M7 M8 N0 N1 nc VEE ICS84320I-01 32-Lead LQFP 7mm x 7mm x 1.4mm package body Y Package Top View HiPerClockS™ ICS OSC VCO_SEL XTAL_SEL TEST_CLK XTAL_IN XTAL_OUT S_LOAD S_DATA S_CLOCK nP_LOAD M0:M8 N0:N1 VCO PLL FOUT0 nFOUT0 FOUT1 nFOUT1 TEST CONFIGURATION INTERFACE LOGIC ÷ M 0 1 0 1 PHASE DETECTOR ÷ 1 ÷ 2 ÷ 4 ÷ 8 MR ÷ N 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. PIN ASSIGNMENT |
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