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| VSS4 series 3.3 Volt Spread Spectrum CMOS Oscillator Features * CMOS output * Output frequencies to 168 MHz * Tri-state output for board test and debug * -10/70 or -40/85 C operating temperature * Gold over nickel contact pads * Hermetically sealed ceramic SMD package * Product is compliant to RoHS directive and fully compatible with lead free assembly The VSS4 Spread Spectrum Crystal Oscillator Applications * Printers, Copiers, Scanners * Cable Modems, Set Top Box * DVD, Blue Ray Disc players * Computer Peripherals, CPU, Graphic Cards * LCD Displays * GPS * Video Surveillance * Games Description Vectron's VSS4 Crystal Oscillator (XO) is quartz stabilized square wave generator with a CMOS output incorporating spread spectrum technology, operating off a 3.3 volt supply. . Vectron International 267 Lowell Road, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail: vectron@vectron.com VSS4 Data Sheet Performance Characteristics Table 1. Electrical Performance Parameter Frequency Operating Supply Voltage 1 Absolute Maximum Operating Voltage Supply Current, Output Enabled 12.00 to 27.999 MHz 28 to 79.999 MHz 80 to 168 MHz Supply Current, Output disabled Output Logic Levels Output Logic High2 Output Logic Low2 Output Logic High Drive Output Logic Low Drive Output Rise/Fall Time2 Duty Cycle3 Operating Temperature (ordering option) Storage Temperature Stability4 (ordering option) Spread, Center or Down (ordering option) Cycle-Cycle Jitter, FOUT <=19.999MHz FOUT>20MHz Output Enable/Disable5 Output Enabled Output Disabled Internal Enable Pull-Up resistor5 Start-up time Symbol fO VDD IDD 13 15 30 50 0.9*VDD 0.1*VDD 8 8 5 40 -10/70 or -40/85 -40 50, 100 0.5,1,2,4 200 100 2.64 0.66 25 10 Kohm ms 85 60 Min 12 3.135 -0.5 Typical 3.3 Maximum 168 3.465 4.0 Units MHz V V mA IDD VOH VOL IOH IOL tR/tF SYM uA V V mA mA ns % C C ppm % ps V 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 (not under operation). 5. Output will be enabled if enable/disable is left open. tR tF IDD 4 VDD V OH 50% V OL On Time Period + - .1F .01F IC VC 1 + - 2 3 15pF Figure 2. Output Waveform Figure 3. Typical Output Test Conditions (255C) Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail: vectron@vectron.com VSS4 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. Table 2. Outline Diagrams, Pad Layout and Pin Out Pin # Symbol Function 1 E/D Enable/Disable 2 GND Electrical and Case Ground 3 fO Output Frequency 4 VDD Supply Voltage 5.00.2 1.050.1 Frequency Date Code 1.6 0.7 2.6 1.1 Suggested Layout 1.6 1.0 2.6 1.3 Devices will be marked with pin 1, frequency and date code Contact Pads are gold over nickel Figure 3, Package drawing Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail: vectron@vectron.com VSS4 Data Sheet Tape and Reel Table 3: Tape and Reel Dimensions (mm) Tape Dimensions Reel Dimensions # Per Product VSS4 A 12 B 5.5 C 1.55 D 4 E 8 F 2.2 G 20 H 13 I 62 J 2.2 K 12.4 L 180 Reel 1000 J F D A E C G B L I H K Reliability The VSS4 qualification testing will include: Table 4. Environnemental Compliance Parameter Mechanical Shock Mechanical Vibration Temperature Cycle Solderability Gross and Fine Leak Resistance to Solvents Moisture Sensitivity Level Conditions MIL-STD-883 Method 2002 MIL-STD-883 Method 2007 MIL-STD-883 Method 1010 MIL-STD-883 Method 2003 MIL-STD-883 Method 1014 MIL-STD-883 Method 2015 MSL1 Handling Precautions Although ESD protection circuitry has been designed into the the VSS4, 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 500 Conditions MIL-STD-883 Method 3115 JESD 22-C101 Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail: vectron@vectron.com VSS4 Data Sheet Suggested IR profile Devices are built using lead free epoxy and can be subjected to standard lead free IR reflow conditions, Table 6 shows max temperatures and lower temperatures can also be used e.g. peak temperature of 220C. Table 6. Reflow Profile (IPC/JEDEC J-STD-020CurrentRev) Parameter Symbol Time At 260 oC (max) T1/t 1 Time At 225 C (max) T2/t2 Ramp Down R DN Value 10 sec Max 60 sec Max 6 oC/sec Max Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail: vectron@vectron.com VSS4 Data Sheet Table 7. Standard Frequencies (MHz) 25.000 29.412 33.000 50.000 Other frequencies may be available upon request. Standard frequencies are frequencies which the crystal has been designed and does not imply a stock position. Ordering Information VSS4 Product Family Spread Spectrum XO, 5x3.2 B 1 C - 25M00 Output Frequency in MHz Voltage Options B: +3.3 Vdc 5% Temperature Options A: 100ppm over -10 to 70C B: 50ppm over -10 to 70C Spread Range 1: 0.5% Center Spread 2: 1% Center Spread 3: 2% Center Spread 4: -1% Down Spread 5: -2% Down Spread 6: -4% Down Spread Note: Not all combinations are available C: 100ppm over -40 to 85C D: 50ppm over -40 to 85C 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 www.vectron.com Revision History Date 5/13/2008 Release Description Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail: vectron@vectron.com |
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