VCE1

VCE1 series 3.3, 5.0 volt CMOS Oscillator Features • CMOS output • Output frequencies to 66.667 MHz • Tri-state output for board test and debug • 0/70 or –40/85 °C operating temperature • Low cost industry standard 14x9.8 mm package • RoHS and lead free compliant construction The VCE1 Crystal Oscillator Applications • SONET/SDH/DWDM • Ethernet, Gigabit Ethernet • Storage Area Network • Digital Video • Broadband Access fo Output Buffer / Disable • Microprocessors/DSP/FPGA Description Vectron’s VCE1 Crystal Oscillator (XO) is quartz stabilized square wave generator with a CMOS output, operating off a 3.3 or 5.0 volt supply. Vectron International 267 Lowell Road, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail: vectron@vectron.com Performance Characteristics Table 1. Electrical Performance, 5V option Parameter Frequency Operating Supply Voltage 1 Absolute Maximum Supply Voltage Supply Current, Output Enabled Output Logic Levels Output Logic High2 Output Logic Low2 Output Rise/Fall Time2 Duty Cycle3 (ordering option) Operating Temperature (ordering option) Storage Temperature Stability4 (ordering option) Output Enable/Disable5 Output Enabled Output Disabled Start-up time Symbol fO VDD IDD VOH VOL tR/tF SYM TOP TSTOR ∆F/T E/D 0.9*VDD 0.1*VDD 8 40/60 or 45/55 0/70 or -40/85 -55 ±50, ±100 4.0 TSU 0.8 10 ms 125 Min 1.000 4.5 -0.7 Typical 5.0 Maximum 66.667 5.5 7.0 40 Units MHz V V mA V V ns % °C °C ppm V Table 2. Electrical Performance, 3.3V option Parameter Symbol Min Typical Maximum Units Frequency fO 1.000 66.667 MHz Operating Supply Voltage 1 VDD 2.97 3.3 3.63 V Absolute Maximum Operating Voltage -0.5 5.0 V Supply Current, Output Enabled IDD 40 mA Output Logic Levels VOH 0.9*VDD V Output Logic High2 0.1*VDD V Output Logic Low2 VOL Output Rise/Fall Time2 tR/tF 8 ns Duty Cycle3 (ordering option) SYM 40/60 or 45/55 % Operating Temperature (ordering option) TOP 0/70 or –40/85 °C Storage Temperature TSTOR -55 125 °C Stability4 (ordering option) ±50, ±100 ppm ∆F/T V E/D Output Enable/Disable5 2.0 Output Enabled 0.5 Output Disabled Start-up time TSU 10 ms 1. A 0.01uF and a 0.1uF capacitor should be located as close to the supply as possible (to ground) is recommended. 2. Figure 3 defines these parameters. Figure 4 illustrates the operating conditions under which these parameters are tested and specified. For Fo>90MHz, rise and fall time is measured 20 to 80%. 3. Symmetry is measured defined as On Time/Period. 4. Includes calibration tolerance, operating temperature, supply voltage variations, aging and shock and vibration. 5. Output will be enabled if enable/disable is left open. tR tF IDD 4 V DD V OH 50% + - .1 µ F .01 µF IC 1 + - 2 3 15pF V OL On Time Period VC Figure 3. Output Waveform Figure 4. Typical Output Test Conditions (25±5°C) Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail: vectron@vectron.com VCE1 Data Sheet Enable/Disable Functional Description Under normal operation the Enable/Disable is left open or set to a logic high state. When the E/D is set to a logic low, the oscillator stops and the output is in a high impedance state. This helps reduce power consumption as well as facilitating board testing and troubleshooting. Tri-state Functional Description Under normal operation the tri-state is left open or set to a logic high state. When the tri-state is set to a logic low, the oscillator remains active but the output buffer is in a high impedance state. This helps facilitate board testing and troubleshooting. Table 3. Outline Diagrams and Pin Out Pin # 1 2 3 4 Symbol E/D or NC GND fO VDD Function Tri-state, Enable/Disable or NC Electrical and Case Ground Output Frequency Supply Voltage Figure 5, Package drawing Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail vectron@vectron.com VCE1 Data Sheet Reliability The VCE1 qualification tests have included: Table 4. Environnemental Compliance Parameter Mechanical Shock Mechanical Vibration Temperature Cycle Gross and Fine Leak Resistance to Solvents Conditions MIL-STD-883 Method 2022 MIL-STD-883 Method 2007 MIL-STD-883 Method 1010 MIL-STD-883 Method 1014 MIL-STD-883 Method 2015 Handling Precautions Although ESD protection circuitry has been designed into the the VCE1, proper precautions should be taken when handling and mounting. VI employs a Human Body Model and a Charged-Device Model (CDM) for ESD susceptibility testing and design protection evaluation. ESD thresholds are dependent on the circuit parameters used to define the model. Although no industry wide standard has been adopted for the CDM, a standard HBM of resistance = 1.5kohms and capacitance = 100pF is widely used and therefore can be used for comparison purposes. Table 5. ESD Ratings Model Human Body Model Charged Device Model Minimum 1000 1500 Conditions MIL-STD-883 Method 3115 JESD 22-C101 Suggested IR profile Devices are built using lead free epoxy, but are only rated for a maximum 240°C reflow. A typical reflow profile is shown below in Figure 6. TEMPERATURE(°C) TIME(s) Figure 6. Suggested Reflow Profile Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail vectron@vectron.com VCE1 Data Sheet Ordering Information: VCE1 Product Family Crystal Oscillator 14x9.8 plastic package Voltage Options A: +5.0 Vdc +/-10%, 15pF B: +3.3 Vdc +/-10%, 15pF E: +5.0 Vdc +/-10%, 50pF B 3 B- 25M00 Output Frequency In MHZ Electrical Options 3: Tri-state, 45/55% Duty The following codes are not recommended for new designs 0: No tri-state, 40/60% Duty 1: Tri-state, 40/60% Duty 2: No tri-state, 45/55%Duty Stability Options A: ±100ppm, 0 to 70°C C: ±100ppm, -40 to 85°C B: ±50ppm, 0 to 70°C D: ±50ppm, -40 to 85°C Note: Not all combinations are available. Tri-state with a 45/55% is the most common Electrical code and is recommended for most applications. Devices will be shipped in Anti Static Tubes For Additional Information, Please Contact: USA: Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Fax: 1-888-FAX-VECTRON EUROPE: Landstrasse, D-74924, Neckarbischofsheim, Germany • Tel: 49 (0) 7268 8010 • Fax: 49 (0) 7268 801281 ASIA: Vectron Asia Pacific Sales 1F~2F. No.8 Workshop No.308 Fenju Rd., WaiGaoQiao Free Trade Zone, Pudong New Area Shanghai, China 200131 •Tel: 8621 50480777 • Fax: 8621 50481881 July 17, 2006 www.vectron.com Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail vectron@vectron.com