VC-806 Di erential (LVPECL, LVDS) Crystal Oscillator VC-806 Description Vectrons VC-806 Crystal Oscillator is a quartz stabilized, di erential output oscillator, operating o either a 2.5 or 3.3 volt supply in a hermetically sealed 5.0x3.2 mm ceramic package. Features Applications Ultra Low Jitter Performance Storage Area Networking Fundamental or 3rd OT Crystal Design Telecom Output Frequencies to 250.000MHz Ethernet, GE, SynchE <0.7 ps RMS jitter, 12kHz-20MHz Fiber Channel Di erential Output PON Enable/Disable Driving A/Ds, D/As, FPGAs -10/70C, -40/85C and -40/105C Operating Temperature Range Test and Measurement Hermetically Sealed 5.0x3.2 mm Ceramic Package Medical COTS Product is compliant to RoHS directive and fully compatible with lead free assembly Block Diagram Complementary Output V Output DD Crystal Oscillator E/D or NC E/D or NC Gnd Page1Performance Speci cations Table 1. Electrical Performance, LVPECL Option Parameter Symbol Min Typ Max Units Supply 1 Supply Voltage (Ordering Option) V 3.135 3.3 3.465 V DD 2.375 2.5 2.625 Current (No Load) I 75 mA DD Frequency 2 Nominal Frequency f 25 250 MHz N 3 Stability (Ordering Option) 25, 50, 100 ppm Outputs 4 Output Logic Levels , -10/70C V Output Logic High V V -1.025 V -0.880 OH DD DD Output Logic Low V V -1.810 V -1.620 OL DD DD 4 Output Logic Levels , -40/105C V Output Logic High V V -1.085 V -0.880 OH DD DD Output Logic Low V V -1.830 V -1.555 OL DD DD 4 Output Rise and Fall Time t / t 700 ps R F Load 50 ohms into V -1.3V DD 5 Duty Cycle 45 50 55 % 6 Phase Jitter , 156.25MHz J 0.3 0.7 ps 12kHz - 20MHz o set 7 Period Jitter J RMS 2.6 ps P/P 23 ps Random Jitter R 2.6 ps J Deterministic Jitter D <0.2 ps J Enable/Disable 8 Output Enabled V 0.7*V V IH DD Output Disabled V 0.3*V V IL DD Enable/Disable Time t 200 ns D Enable/Disable Leakage Current 200 uA Enable Pull-Up Resistor Output Enabled 33 KOhm Output Disabled 1 MOhm Start-Up Time t 10 ms SU 9 Operating Temperature Range (Ordering Option) T -10/70 or -40/85 or -40/105 C OP Package Size 5.0 x 3.2 x 1.3 mm 1. The VC-806 power supply pin should be ltered, eg, a 0.1 and 0.01uf capacitor. 2. See Standard Frequencies and Ordering Information for more information. 3. Includes calibration tolerance, operating temperature, supply voltage variations, aging and IR re ow. 4. Figure 1 shows the test circuit and Figure 2 de nes these parameters. 5. Duty Cycle is de nes as the On/Time Period. 6. Measured using an Agilent E5052 Signal Source Analyzer at 25 C. Phase Jitter will be 1.0ps (max) for carrier frequencies between 25MHz and 100MHz. Above 100MHz carrier frequency, phase jitter will be 0.7ps (max). 7. Measured using a Wavecrest SIA3300C, 90K samples. 8. Outputs will be Enabled if Enable/Disable is left open. 9. Only 50ppm and 100ppm stability options are available for -40 C to 105 C operating temperature range. Page2