ICS309 Integrated Circuit System, ICS309 Datasheet
ICS309
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ICS309 Summary of contents
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... Description The ICS309 is a versatile serially programmable, triple PLL with spread spectrum clock source. The ICS309 can generate any frequency from 250kHz to 200 MHz, and different output frequencies simultaneously. The outputs can be reprogrammed on the fly, and will lock to a new frequency less. ...
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... Output clock 5. Default of Reference frequency output when unprogrammed. Connect to Ground. Connect to +3.3V. Connect to +3.3V. Powers down entire chip, tri-states all outputs when low. Internal pull-up. Serial Shift register clock. See timing diagram. Strobe to load data. See timing diagram. 2 ICS309 ROGRAMMABLE RIPLE Pin Description Revision 053003 ...
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... DATA pin in this order: MSB (left most bit) first. As show in Figure 2, after these 160 bits are clocked into the ICS309, taking STROBE high will send this data to the internal hatch and the CLK output will lock within 10 ms. ...
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... The nominal impedance of the clock output Decoupling Capacitors As with any high performance mixed-signal IC, the ICS309 must be isolated from system power supply noise to perform optimally. Decoupling capacitors of 0.01µF must be connected between each VDD and the PCB ground plane. Crystal Load Capacitors ...
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... ICS309 Configuration Capabilities The architecture of the ICS309 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 ...
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... Absolute Maximum Ratings Stresses above the ratings listed below can cause permanent damage to the ICS309. 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 ...
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... PDTS goes high until stable CLK out t Reference Clock j t All other clocks Configuration dependent Symbol Conditions Still air JA 1 m/s air flow JA 3 m/s air flow ICS309 ROGRAMMABLE RIPLE Min. Typ. Max. Units 2.4 0.4 VDD-0.4 +70 4 525 250 Min. Typ. ...
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... ICS309R ICS308R YYWW (2nd line) ICS309R-T While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems (ICS) assumes no responsibility for either its use or for the infringement of any patents or other rights of third parties, which would result from its use. No other circuits, patents, or licenses are implied. This product is intended for use in normal commercial applications ...