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M672-4-AA Datasheet(PDF) 2 Page - Integrated Circuit Systems |
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M672-4-AA Datasheet(HTML) 2 Page - Integrated Circuit Systems |
2 / 4 page M672 Datasheet Rev 0.2 2 of 4 Revised 07Apr2004 Integr ate d Circuit Systems , In c. ● Comm unication s Modules ● www.icst.com ● tel (508) 852-5400 Integrated Circuit Systems, Inc. M672 VCSO WITH SELECTABLE OUTPUT FREQUENCY DIVIDER Preliminar y In f o r m atio n PIN DESCRIPTIONS PARAMETER MEASUREMENT INFORMATION Output Rise and Fall Time Figure 3: Output Rise and Fall Time Output Duty Cycle Figure 4: Output Duty Cycle Number Name I/O Configuration Description 1VIN Input Frequency control input. 2 P_SEL Input Internal pull-up resistor1 P Divider selection: Logic 0 selects P=1, so that Fout = Fvcso. Logic 1 selects P=d, so that Fout = 1/d Fvcso.2 3GND Ground Power supply ground connection. 4 5 FOUT nFOUT Output No internal terminator Clock output pair. Differential LVPECL. 6VCC Power Power supply connection, connect to +3.3V. Table 2: Pin Descriptions Note 1: See “P Select Pull-up” in Table 5, DC Characteristics on pg. 3. Note 2: The P divider value d (4, 8, or 2) is specified as part of the order number. Format is M672-d-xx. See Ordering Information on pg. 4. ABSOLUTE MAXIMUM RATINGS1 Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These ratings are stress specifications only. Functional operation of product at these conditions or any conditions beyond those listed in Recommended Conditions of Operation, DC Characteristics, or AC Characteristics is not implied. Exposure to absolute maximum rating conditions for extended periods may affect product reliability. Symbol Parameter Rating Unit V I Inputs -0.5 to V CC +0.5 V V O Outputs -0.5 to V CC +0.5 V V CC Power Supply Voltage 4.6 V T S Storage Temperature -55 to +125 oC Table 3: Absolute Maximum Ratings RECOMMENDED CONDITIONS OF OPERATION Symbol Parameter Min Typ Max Unit V CC Positive Supply Voltage 2.97 3.3 3.63 V T A Ambient Operating Temperature -40 25 +85 oC Table 4: Recommended Conditions of Operation 20% 80% tR 20% tF 80% Clock Outputs VP-P tPW tPERIOD (Output Pulse Width) tPERIOD tPW odc = nFOUT FOUT |
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