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PI6CX100-27 27 MHz 3.3V VCXO for Set-Top Box Applications Features * * * * * * 3.3V operating voltage Uses an inexpensive external crystal On-chip VCXO with pull range of 240ppm VCXO tuning voltage from 0 to 3.3V 10mA output drive at CMOS levels Available in SOIC package Description The PI6CX100-27 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 by 120ppm. This device uses an inexpensive external pullable crystal at 27 MHz to produce the same output frequency. The PI6CX100-27 is designed for Set-Top Box applications. Block Diagram VIN X1 X2 Pin Configuration X1 Output Buffer CLKOUT Voltage Controlled Crystal Oscillator 1 3 4 W 8 6 5 X2 NC NC 2 8-Pin 7 VIN GND VDD CLKOUT Pin Description Pin Name X1, X2 NC VIN GND CLKOUT VDD Note: 1. 0.1F or 0.01F bypass capacitor is required. Number 1, 8 2 3 4 5 6 Type I I PWR O PWR Description Crystal Connection No Connection Voltage Input to VCXO Ground Clock Output Power Supply(2) 1 PS8576C 09/22/04 PI6CX100-27 27 MHz 3.3V VCXO for Set-Top Box Applications 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 IOZ 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 Output Off-leakage Negative Resistance Input Frequency Output load Capacitance VIN = 0V 20 -150 27 15 30 30 IOH =-12mA IOL = -12mA VOH = VDD-0.5V VOL =0.5V CL = 15pF 4 -11 12 5 10 A MHz pF Test Condidtion Min. 3.135 2.8 0.5 -4 mA Typ. 3.3 Max. 3.465 V Units AC Electrical Characteristics (Unless otherwise specified, fO = 27 MHz, Load = 15pF, TA = 25oC) Symbol TR/Tf Td f Tj Lin Duty Cycle Rull Range Cycle-to-Cycle Jitter Linearity Oscillator Start Time Desciption Rise / Fall Time Test Condidtion 0.1VDD - 0.9VDD 0.5VDD VIN = 0 - VDD CL = 15pf VIN = 0.1VDD - 0.9 VDD VDD = 0.9VDD Trigger 45 120 50 10 1.5 10 Min. Typ. 1.5 Max. 6 55 Units ns % ppm ps % ms 2 PS8576C 09/22/04 PI6CX100-27 27 MHz 3.3V VCXO for Set-Top Box Applications Pullability Characteristics 160 140 120 100 80 60 f (ppm) 40 20 0 -20 -40 -60 -80 -100 -120 -140 -160 0.0 0.5 1.0 1.5 VIN (V) 2.0 2.5 3.0 3.5 ATS . . . . . . . HC49/U Recommended Crystal Specifications Description Mode of Oscillation Frequency Range Frequency Tolerance Tenperature 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.) 18pF 35 (max.) Measurement Circuit X1 NC VIN VIN GND X2 NC VDD CLKOUT 0.01F CL = 15pF 3.3V Note: 1. 0.1F or 0.01F bypass capacitor is required. 2. Crystal frequency is 27.000 MHz. 3 PS8576C 09/22/04 PI6CX100-27 27 MHz 3.3V VCXO for Set-Top Box Applications Packaging Mechanical: Plastic 8-pin SOIC (W) 8 .149 .157 3.78 3.99 4.80 .189 5.00 .196 1 .016 REF .026 0.406 0.660 .053 .068 1.35 1.75 .0099 .0196 0.25 x 45 0.50 SEATING PLANE 0-8 0.40 .016 1.27 .050 .0075 .0098 0.19 0.25 .050 BSC 1.27 .0040 0.10 .0098 0.25 .013 .020 0.330 0.508 X.XX X.XX DENOTES DIMENSIONS IN MILLIMETERS .2284 .2440 5.80 6.20 Ordering Information Ordering Code PI6CX100-27W PI6CX100-27WE Package Code W W Package Type 8-pin, 150-mil SOIC Pb-free & Green 8-pin, 150-mil SOIC Operating Range Industrial Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ 2. Number of Transistors = TBD Pericom Semiconductor Corporation * 1-800-435-2336 * 4 www.pericom.com PS8576C 09/22/04 |
Price & Availability of PI6CX100-2 |
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