VCC6-Q Series 3.3 volt LVPECL Crystal Oscillator, Output Frequencies > 270MHz Features * 3.3V LVPECL * Output frequencies from 270 to 800 MHz * Enable/Disable for test and board debug * -10/70 or -40/85 C operating temperature * Hermetically sealed ceramic SMD package * Product is compliant to RoHS directive and fully compatible with lead free assembly Applications * SONET/SDH/DWDM The VCC6 Crystal Oscillator * Fiber Channel * Ethernet, Gigabit Ethernet * Storage Area Network * Digital Video Enable/Disable * Broadband Access Description OUT OUT Vectron's VCC6 Crystal Oscillator (XO) is quartz stabilized square wave generator with a LV-PECL output, operating off a 3.3 volt supply. Output Buffer / Disable Vectron International 267 Lowell Road, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail: vectron@vectron.com VCC6-Q 3.3v LVPECL Crystal Oscillator, Output Frequencies > 270MHZ Performance Characteristics Table 1. Electrical Performance Parameter Frequency Supply Voltage 1 , Supply Current Output Logic Levels, -10/70C Output Logic High2 Output Logic Low2 Symbol fO VDD IDD Min 270 3.15 VOH VOL VOH VOL Output Logic Levels, -40/85C Output Logic High2 Output Logic Low2 Transition Times Rise Time2 Fall Time2 Symmetry or Duty Cycle3 Operating temperature (ordering option) Stability (ordering option)4 Jitter, 12kHz to 20MHz 5 Period RMS Jitter Period p/p Jitter Output Enabled6 Output Disabled6 Enable/Disable Leakage Current Output Enable Pull-Up Resistor6 tR tF SYM TOP deltaF/F VIH VIL IIL Typical Maximum 800 3.45 100 Units MHz V mA VDD-1.025 VDD-1.810 VDD-0.880 VDD-1.620 V V VDD-1.085 VDD-1.830 VDD-0.880 VDD-1.555 V V 45 600 600 55 ps ps % C ppm ps 50 -10/70 or -40/85 20, 25, 50 or 100 2 4 30 0.7*VDD 0.3*VDD 200 V V uA 100 1. 2. 3. 4. A 0.01uF and a 0.1uF capacitor should be located as close to the supply as possible and terminated to ground. Figure 1 defines these parameters. Figure 2 illustrates the operating conditions under which these parameters are tested and specified. Symmetry is measured defined as On Time/Period. Includes calibration tolerance, operating temperature, supply voltage variations, aging (40 degreesC/10 years) and shock and vibration (not under operation). 5. Measurements made on a VCC6-QAB-622M080 using a LeCroy 8600, 25K samples. 6. Output will be enabled if Enable/Disable is left open. tF tR 80 % Vs 20 % On Time Period Figure 1. Output Waveform Figure 2. Typical Output Test Conditions (255C) Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail: vectron@vectron.com VCC6-Q 3.3v LVPECL Crystal Oscillator, Output Frequencies > 270MHZ Table 2. VCC6-QAx Pinout Pin # Symbol 1 NC 2 E/D 3 GND 4 fO 5 Cfo 6 VDD Function This pin has no internal connection and is floating. Enable/Disable Function Ground Output Frequency Complementary Output Frequency Supply Voltage Table 3. VCC6-QCx Pinout Pin # Symbol 1 E/D 2 NC 3 GND 4 fO 5 Cfo 6 VDD Function Enable/Disable Function This pin has no internal connection and is floating. Ground Output Frequency Complementary Output Frequency Supply Voltage Contact pads are Gold over Nickel plating Figure 3. VCC6-QCx Package Drawing Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail: vectron@vectron.com VCC6-Q 3.3v LVPECL Crystal Oscillator, Output Frequencies > 270MHZ Terminating PECL Outputs The VCC6 incorporates a standard PECL output scheme, which are un-terminated emitters as shown in Figure 4. There are numerous application notes on terminating and interfacing PECL logic and the two most common methods are a single resistor to ground, Figure 5, and a pull-up/pull-down scheme as shown in Figure 6. An AC coupling capacitor is optional, depending on the application and the input logic requirements of the next stage. One of the most important considerations is terminating the Output and Complementary Outputs equally. An unused output should not be left un-terminated, and if it one of the two outputs is left open it will result in excessive jitter on both. PC board layout must take this and 50 ohm impedance matching into account. Load matching and power supply noise are the main contributors to jitter related problems. Figure 4. Standard PECL Output Configuration Figure 5. Single Resistor Termination Resistor value are typically: 120 to 240ohms for 3.3V Vectron International 267 Lowell Rd, Hudson NH 03051 Figure 6. Pull-up Pull-down Termination Resistor values are typically: 130 and 82 ohms for 3.3V Tel: 1-88-VECTRON-1 e-mail: vectron@vectron.com VCC6-Q 3.3v LVPECL Crystal Oscillator, Output Frequencies > 270MHZ Enable/Disable Functional Description Under normal operation the Enable/Disable is left open, or set to a logic high state, and the VCC6 is oscillating. When the E/D is set to a logic low, the oscillator stops and the both the output and complementary outputs are in a high impedance state. This helps facilitate board testing and troubleshooting. Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings can permanently damage the device. Functional operation is not implied at these or any other conditions in excess of conditions represented in the operational sections of this data sheet. Exposure to absolute maximum ratings for extended periods may adversely affect device reliability. Table 4. Absolute Maximum Ratings Parameter Symbol Power Supply VDD Enable/Disable VIN Storage Temperature Tstorage Ratings -0.5 to +4.6 -0.5 to VDD+0.5 -55/125 Unit Vdc Vdc C Reliability The VCC6 qualification tests included: Table 5. Environnemental Compliance Parameter Mechanical Shock Mechanical Vibration Solderability Gross and Fine Leak Resistance to Solvents Conditions MIL-STD-883 Method 2002 MIL-STD-883 Method 2007 MIL-STD-883 Method 2003 MIL-STD-883 Method 1014 MIL-STD-883 Method 2016 Handling Precautions Although ESD protection circuitry has been designed into the the VCC6, 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 6. ESD Ratings Model Minimum Conditions Human Body Model 1500 MIL-STD-883 Method 3015 Charged Device Model 1500 Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail: vectron@vectron.com VCC6-Q 3.3v LVPECL Crystal Oscillator, Output Frequencies > 270MHZ IR Reflow and Suggested Pad Size Layout The VCC6 has been qualified to meet the JEDEC standard for Pb-Free assembly. The temperatures and time intervals listed are based on the Pb-Free small body requirements and parameters are listed in Table 7. The VCC6 is hermetically sealed so an aqueous wash is not an issue. Table 7. Reflow Profile (IPC/JEDEC J-STD-020B) Parameter Symbol PreHeat Time tS Ramp Up R UP Time Above 217 oC Time To Peak Temperature Time At 260 oC (max) Ramp Down tL t AMB-P tP R DN Value 60 sec Min, 200 sec Max 3 oC/sec Max 60 sec Min, 150 sec Max 480 sec Max 10 sec Max 6 oC/sec Max Figure 7. IR Reflow Diagram Figure 8. Pad Size Diagram Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail: vectron@vectron.com VCC6-Q 3.3v LVPECL Crystal Oscillator, Output Frequencies > 270MHZ Tape and Reel J F D G C B A L I E H K Figure 9. Tape and Reel Diagram Table 8. Tape and Reel Dimensions (mm) Tape Dimensions Product A VCC6 16 B C D E 7.5 1.5 4 8 Reel Dimensions F G H Vectron International 267 Lowell Rd, Hudson NH 03051 2 21 13 Tel: 1-88-VECTRON-1 I J K L 60 2 17 180 e-mail: vectron@vectron.com # Per Reel 250 VCC6-Q 3.3v LVPECL Crystal Oscillator, Output Frequencies > 270MHZ Table 9. Frequencies (MHz) 311.040 333.000 500.000 666.5413 700.000 312.500 350.000 600.000 669.3236 779.5686 320.000 400.000 622.080 693.3265 322.2656 446.000 625.000 693.4829 332.000 472.000 644.5313 693.750 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 VCC6 - Qxx - xxxMxx Product Family Frequency MHz Crystal Oscillator example: 625M00= 625.000MHz Supply Voltage, Output Stability Options/Temperature Q=3.3V, PECL A: 100ppm -10 to 70C B: 50ppm -10 to 70C Enable/Disable C: 100ppm -40 to 85C A: E/D is on Pin 2, Pin 1 is a NC D: 50ppm -40 to 85C C: E/D is on Pin 1, Pin 2 is a NC E: 25ppm -10 to 70C F: 25ppm -40 to 85C NOTE: Not all combinations of options are available. A +/-20ppm over -10/70C, VCC6-107-frequency, is also available. For Additional Information, Please Contact: www.vectron.com 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 Vectron International reserves the right to make changes to the product(s) and/or information contained herein without notice. as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information. No liability is assumed VCC6-Q 270Mhz (REVISION DATE: September7, 2005) Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail: vectron@vectron.com