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MK2761AS Datasheet(PDF) 3 Page - Integrated Circuit Systems |
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MK2761AS Datasheet(HTML) 3 Page - Integrated Circuit Systems |
3 / 6 page SET-TOP CLOCK SOURCE MDS 2761A D 3 Revision 070705 In te gr ated Circuit Systems ● 525 Ra ce Street, San Jose, CA 9512 6 ● tel (4 08) 297-1 201 ● www.icst.com MK2761A External Components The MK2761A requires a minimum number of external components for proper operation. Decoupling capacitors of 0.1µF should be connected between VDD and GND, as close to the MK2761A as possible. A series termination resistor of 33 Ω may be used for each clock output. If a clock input is not used, the 27 MHz crystal must be connected as close to the chip as possible. The crystal should be a fundamental mode (do not use third overtone), parallel resonant, 50 ppm or better. Crystal capacitors should be connected from pins X1 to ground and X2 to ground. The value of these capacitors is given by the following equation, where CL is the crystal load capacitance: Crystal caps (pF) = (CL-4) x 2. So, for a crystal with 16 pF load capacitance, the crystal caps should be 24 pF each. Absolute Maximum Ratings Stresses above the ratings listed below can cause permanent damage to the MK2761A. 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 7 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) +4.5 +5.5 V |
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