PI6CX100-272 27 MHz 3.3V VCXO Product Features 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. 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) The PI6CX100-272 is designed for Set-Top Box applications. Logic Block Diagram VIN Product Pin Configuration Voltage Controlled X1 CLKOUT Crystal Oscillator X2 X1 1 8 X2 NC 2 8-Pin 7 NC VIN 3 6 CLKOUT GND 4 5 VDD W Pin Description Pin Name Number Type X1, X2 1, 8 I NC 2, 7 VIN 3 I GND 4 PWR VDD 5 O CLKOUT 6 PWR Description Crystal Connection No Connection Voltage Input to VCXO Ground Clock Output Power Supply(1) Note: 1. 0.1µF or 0.01µF bypass capacitor is required. 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.) 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. Storage Temperature .........................................–55°C to 125°C Ambient Temperature ........................................–40°C to 85°C Supply Voltage VDD ..............................................–0.5V to 7V Inputs/Outputs Voltage.............................. –0.5V to VDD +0.5V Output Current ..................................................................10mA Soldering Lead Temperature (10s)................................... 260°C Junction Temperature .......................................–50°C to 150°C DC Electrical Characteristics (Unless otherwise specified, VDD = 3.3V, fO = 27 MHz, VIN = 1.65V, Load = 15pF, TA = 25oC) Symbol Desciption Test Condidtion Min. Typ. Max. 3.135 3.3 3.465 VDD Operating Voltage VOH Output High Volage IOH =-12mA VOL Output Low Voltage IOL = -12mA 0.5 IOH Output High Current VOH = VDD-0.5V -12 IOL Output Low Current VOL =0.5V IDD Supply Current CL = 15pF 5 RS Negative Resistance VIN = 0V -150 fO Input Frequency CL Output load Capacitance 2.8 V 12 20 Units mA Ω 27 30 MHz 15 30 pF Typ. 1.5 Max. 6 55 Units ns % ppm ps % ms AC Electrical Characteristics (Unless otherwise specified, fO = 27 MHz, Load = 15pF, TA = 25oC) Symbol TR/Tf Td ∆f Tj Lin TSTART 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 2 Min. 45 400 50 ±10 1.5 10 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 -20°C to +70°C 240 (max.) 14pF 35Ω (max.) Measurement Circuit VIN X1 X2 NC NC VIN CLKOUT GND 3.3V VDD 0.01µF CL = 15pF Note: 1. 0.1µF or 0.01µF 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 Package Code Package Type Operating Range PI6CX100-272W W 8-pin, 150mil wide SOIC Industrial PI6CX100-272WE W 8-pin, 150mil wide SOIC 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