ics291 Integrated Device Technology, ics291 Datasheet
ics291
Available stocks
Related parts for ics291
ics291 Summary of contents
Page 1
... VDDO voltage. VDDO may vary from 1 VDD. Using Phase-Locked Loop (PLL) techniques, the device runs from a standard fundamental mode, inexpensive crystal, or clock. It can replace multiple crystals and oscillators, saving board space and cost. The ICS291 is also available in factory programmed custom versions for high-volume applications. Block Diagram S2:S0 X1/ICLK ...
Page 2
... Output clock 6. Weak internal pull-down when tri-state. Power Connect to ground. Power-down tri-state. Powers down entire chip and tri-states clock outputs Input when low. Internal pull-up resistor. Connect to +3.3 V. Power Input Select pin 2. Internal pull-up resistor. EPROM CLOCK SYNTHESIZER Pin Description ICS291 REV D 061306 ...
Page 3
... Example: For a crystal with load capacitance, each crystal capacitor would [(16- 20. ICS291 Configuration Capabilities The architecture of the ICS291 allows the user to easily configure the device to a wide range of output frequencies, for a given input reference frequency. The frequency multiplier PLL provides a high degree of precision ...
Page 4
... Absolute Maximum Ratings Stresses above the ratings listed below can cause permanent damage to the ICS291. These ratings, which are standard values for ICS commercially rated parts, are stress ratings only. Functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. ...
Page 5
... S2:S0, PDTS PUS R CLK outputs PD C Inputs IN EPROM CLOCK SYNTHESIZER Min. Typ. Max. Units 3.135 3.465 1.80 VDD 25 500 VDD/2+1 0.4 VDD-0.5 0.4 VDD/2+1 VDD/2-1 VDD-0.4 2.4 VDDO-0.4 0.4 ±40 ±70 20 190 120 4 ICS291 µ Ω kΩ kΩ pF REV D 061306 ...
Page 6
... JC EPROM CLOCK SYNTHESIZER Min. Typ. Max. Units 5 27 MHz 3 166 MHz 0.314 200 MHz 0.314 150 MHz 1.0 ns 2 49- TBD ppm 0 +200 ps -250 250 ps Min. Typ. Max. Units °C/W 93 °C/W 78 °C/W 65 °C/W 20 ICS291 REV D 061306 ...
Page 7
... Pb (lead) free package. 5. Bottom marking: country of origin. IDT™ / ICS™ TRIPLE PLL FIELD PROG. SPREAD SPECTRUM CLOCK SYNTHESIZER 7 Marking Diagrams (Pb free EPROM CLOCK SYNTHESIZER 20 11 ###### YYWW 291PGL ###### YYWW 291PGIL 10 1 ICS291 REV D 061306 ...
Page 8
... EPROM CLOCK SYNTHESIZER Millimeters Min Max Min A — 1.20 — A1 0.05 0.15 0.002 A2 0.80 1.05 0.032 b 0.19 0.30 0.007 C 0.09 0.20 0.0035 D 6.40 6.60 0.252 E 6.40 BASIC 0.252 BASIC E1 4.30 4.50 0.169 e 0.65 Basic 0.0256 Basic L 0.45 0.75 .018 α 0° 8° 0° L ICS291 Inches Max .047 0.006 0.041 0.012 0.008 0.260 0.177 .030 8° c REV D 061306 ...
Page 9
... The ICS291G-XX, ICS291G-XXLF, ICS291GI-XX, and ICS291GI-XXLF are factory programmed versions of the ICS291PG, ICS291PGLF, ICS291PGI, and ICS291PGILF. A unique “-XX” suffix is assigned by the factory for each custom configuration, and a separate data sheet is kept on file. For more information on custom part numbers programmed at the factory, please contact your local IDT sales and marketing representative ...
Page 10
... ICS291 TRIPLE PLL FIELD PROG. SPREAD SPECTRUM CLOCK SYNTHESIZER Innovate with IDT and accelerate your future networks. Contact: www.IDT.com For Sales 800-345-7015 408-284-8200 Fax: 408-284-2775 Corporate Headquarters Integrated Device Technology, Inc. www.idt.com © 2006 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the IDT logo are trademarks of Integrated Device Technology, Inc ...