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ICS662M-03LF Datasheet(PDF) 3 Page - Integrated Device Technology |
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ICS662M-03LF Datasheet(HTML) 3 Page - Integrated Device Technology |
3 / 7 page ICS662-03 HDTV AUDIO/VIDEO CLOCK SOURCE CLOCK SYNTHESIZER IDT™ / ICS™ HDTV AUDIO/VIDEO CLOCK SOURCE 3 ICS662-03 REV E 101807 Application Information Series Termination Resistor Clock output traces should use series termination. To series terminate a 50 Ωtrace (a commonly used trace impedance), place a 33 Ωresistor in series with the clock line, as close to the clock output pin as possible. The nominal impedance of the clock output is 20 Ω. Decoupling Capacitors As with any high performance mixed-signal IC, the ICS662-03 must be isolated from system power supply noise to perform optimally. Decoupling capacitors of 0.01µF must be connected between VDD (pin 2) and the PCB ground plane (pin 3). PCB Layout Recommendations For optimum device performance and lowest output phase noise, the following guidelines should be observed. 1) Each 0.01µF decoupling capacitor should be mounted on the component side of the board as close to the VDD pin as possible. No vias should be used between decoupling capacitor and VDD pin. The PCB trace to VDD pin should be kept as short as possible, as should the PCB trace to the ground via. Distance of the ferrite bead and bulk decoupling from the device is less critical. 2) To minimize EMI and obtain the best signal integrity, the 33 Ω series termination resistor should be placed close to the clock output. 3) An optimum layout is one with all components on the same side of the board, minimizing vias through other signal layers (the ferrite bead and bulk decoupling capacitor can be mounted on the back). Other signal traces should be routed away from the ICS662-03. This includes signal traces just underneath the device, or on layers adjacent to the ground plane layer used by the device. Absolute Maximum Ratings Stresses above the ratings listed below can cause permanent damage to the ICS662-03. 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. Exposure to absolute maximum rating conditions for extended periods can affect product reliability. Electrical parameters are guaranteed only over the recommended operating temperature range. Recommended Operation Conditions Item Rating Supply Voltage, VDD 5.5 V All Inputs and Outputs -0.5 V to VDD+0.5 V Ambient Operating Temperature 0 to +70 ° C Storage Temperature -65 to +150 ° C Junction Temperature 125 ° C Soldering Temperature 260 ° C Parameter Min. Typ. Max. Units Ambient Operating Temperature 0 +70 ° C Power Supply Voltage (measured in respect to GND) +3.0 +3.6 V |
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