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| PI6CX100-272 27 MHz 3.3V VCXO Product Features * * * * * * 3.3V operating voltage Uses an inexpensive external crystal On-chip VCXO with pull range of 400ppm VCXO tuning voltage from 0 to 3.3V 10mA output drive at CMOS levels Packaging: (Pb-free & Green available) --8-pin SOIC (W) Product Description The PI6CX100-272 is a low-cost, high-performance 3.3V VCXO, designed to replace expensive VCXO modules. The on-chip Voltage Controlled Crystal Oscillator accepts a 0 to 3.3V input voltage to cause clocks to vary from -250 ppm to +150 ppm. This device uses an inexpensive external pullable crystal at 27 MHz to produce the same output frequency. The PI6CX100-272 is designed for Set-Top Box applications. Logic Block Diagram VIN X1 X2 Product Pin Configuration X1 NC CLKOUT Voltage Controlled Crystal Oscillator 1 3 4 W 8 6 5 X2 NC 2 8-Pin 7 VIN GND CLKOUT VDD Pin Description Pin Name X1, X2 NC VIN GND VDD CLKOUT Note: 1. 0.1F or 0.01F bypass capacitor is required. Number 1, 8 2, 7 3 4 5 6 I PWR O PWR Type I Description Crystal Connection No Connection Voltage Input to VCXO Ground Clock Output Power Supply(1) 1 PS8813 02/27/06 PI6CX100-272 27 MHz 3.3V VCXO Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature .........................................-55C to 125C Ambient Temperature ........................................-40C to 85C Supply Voltage VDD ..............................................-0.5V to 7V Inputs/Outputs Voltage.............................. -0.5V to VDD +0.5V Output Current ..................................................................10mA Soldering Lead Temperature (10s)................................... 260C Junction Temperature .......................................-50C to 150C Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. DC Electrical Characteristics Symbol VDD VOH VOL IOH IOL IDD RS fO CL (Unless otherwise specified, VDD = 3.3V, fO = 27 MHz, VIN = 1.65V, Load = 15pF, TA = 25oC) Desciption Operating Voltage Output High Volage Output Low Voltage Output High Current Output Low Current Supply Current Negative Resistance Input Frequency Output load Capacitance IOH =-12mA IOL = -12mA VOH = VDD-0.5V VOL =0.5V CL = 15pF VIN = 0V 20 12 5 -150 27 15 30 30 MHz pF Test Condidtion Min. 3.135 2.8 0.5 -12 mA Typ. 3.3 Max. 3.465 V Units AC Electrical Characteristics Symbol TR/Tf Td f Tj Lin TSTART (Unless otherwise specified, fO = 27 MHz, Load = 15pF, TA = 25oC) Desciption Rise / Fall Time Duty Cycle Pull Range Cycle-to-Cycle Jitter Linearity Oscillator Start Time Test Condidtion 0.1VDD - 0.9VDD 0.5VDD VIN = 0 - VDD CL = 15pf VIN = 0.1VDD - 0.9 VDD VDD = 0.9VDD Trigger Min. 45 400 50 10 1.5 Typ. 1.5 Max. 6 55 Units ns % ppm ps % ms 10 2 PS8813 02/27/06 PI6CX100-272 27 MHz 3.3V VCXO Pullability Characteristics Recommended Crystal Specifications (PI6CX100-272 is optmized to work with SRX6737 Crystal) Description Mode of Oscillation Frequency (typ) Frequency Tolerance Temperature plus Aging Stability Operating Temperature C0 /C1 Load Capacitance (CL) Equivalent Series Resistance (ESR) Crystal Fundamental 27.000 MHz 30ppm 50ppm -20C to +70C 240 (max.) 14pF 35 (max.) Measurement Circuit X1 NC VIN VIN GND X2 NC CLKOUT VDD 0.01F 3.3V CL = 15pF Note: 1. 0.1F or 0.01F bypass capacitor is required. 2. Crystal frequency is 27.000 MHz. 3 PS8813 02/27/06 PI6CX100-272 27 MHz 3.3V VCXO Packaging Mechanical: Plastic 8-pin SOIC (W) Ordering Information(1,2,3) Ordering Code PI6CX100-272W PI6CX100-272WE Package Code W W Package Type 8-pin, 150mil wide SOIC 8-pin, 150mil wide SOIC Operating Range Industrial Industrial Notes: 1. Thermal characteristics can be found on the company web site at http://www.pericom.com/packaging/ 2. E = Pb-free and Green 3. X suffix = Tape/Reel Pericom Semiconductor Corporation * 1-800-435-2336 * 4 http://www.pericom.com PS8813 02/27/06 |
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