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ICS840001AK-34 Datasheet(PDF) 1 Page - Integrated Circuit Systems |
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ICS840001AK-34 Datasheet(HTML) 1 Page - Integrated Circuit Systems |
1 / 9 page 840001AK-34 www.icst.com/products/hiperclocks.html REV. A MAY 6, 2005 1 Integrated Circuit Systems, Inc. ICS840001-34 FEMTOCLOCKS™CRYSTAL-TO- LVCMOS/LVTTL FREQUENCY SYNTHESIZER PRELIMINARY GENERAL DESCRIPTION The ICS840001-34 is a two output LVCMOS/ LVTTL Synthesizer and a member of the HiPerClocksTM family of high performance devices from ICS. One output is the LVCMOS/ LVTTL main synthesized clock output (Q) and one output is a three-state LVCMOS/LVTTL reference clock (REF_CLK) output at the frequency of the crystal oscillator. The device can accept crystal from 15.3125MHz to 42.67MHz and can synthesize outputs from 81.67MHz to 213.33MHz.The ICS840001-34 has excellent <1ps phase jitter performance over the 637kHz – 10MHz integration range. The ICS840001-34 is packaged in a 3mm x 3mm 16-pin VFQFN, making it ideal for use on space constrained boards. FEATURES • (2) LVCMOS/LVTTL outputs, 20Ω typical output impedence (1) Main clock output (Q) (1) Three-state reference clock output (REF_CLK) • Crystal oscillator interface can accept crystals from 15.3125MHz to 42.67MHz, 18pF parallel resonant crystal • Output frequency range: 81.67MHz to 213.33MHz • VCO range: 490MHz to 640MHz • RMS phase jitter @ 106.25MHz, using a 26.5625MHz crystal (637kHz - 10MHz): 0.38ps (typical) • 3.3V operating supply • 0°C to 70°C ambient operating temperature HiPerClockS™ ICS BLOCK DIAGRAM PIN ASSIGNMENT OSC Phase Detector VCO 490MHz - 640MHz 00 = ÷3 01 = ÷4 10 = ÷5 11 = ÷6 (default) 11 = ÷15 (default) 10 = ÷24 01 = ÷25 00 = ÷32 XTAL_IN XTAL_OUT OE Q M1 M0 N1 N0 (Pullup) ICS840001-34 16-Lead VFQFN 3mm x 3mm x 0.95 package body K Package Top View OE XTAL_IN XTAL_OUT M0 Q VDDO GND VDD 1 2 3 4 12 11 10 9 5 6 7 8 16 15 14 13 REF_CLK (Pullup) (Pullup) (Pullup) (Pullup) COMMON APPLICATION CONFIGURATION TABLE s t u p n I y c n e u q e r F t u p t u O ) z H M ( n o i t a c i l p p A l a t s y r Cr e d i v i D M) z H M ( O C Vr e d i v i D N 0 45 10 0 66 0 0 1 , ) I S C S ( d e h c a t t A l a i r e S k c o l C r o s s e c o r P , ™ s s e r p x E I C P 5 2 6 5 . 6 24 25 . 7 3 66 5 2 . 6 0 1l e n n a h C e r b i F 0 45 10 0 64 0 5 1k c o l C r o s s e c o r P , ) A T A S ( A T A l a i r e S 5 2 6 5 . 6 24 25 . 7 3 63 5 . 2 1 22 l e n n a h C e r b i F 5 25 25 2 65 5 2 1t e n r e h t E 5 25 25 2 64 5 2 . 6 5 1t e n r e h t E t i b a g i G 0 1 5 . 2 25 25 . 2 6 53 5 . 7 8 1t e n r e h t E t i b a g i G 2 1 4 4 . 9 12 38 0 . 2 2 64 2 5 . 5 5 1T E N O S 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. |
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