VL-821_11

VL-821 CMOS Crystal Oscillator Previous Vectron Model VCS3 VL-821 Description Vectron’s VL-821 Crystal Oscillator (XO) is a quartz stabilized square wave generator with a CMOS output, operating off either a 1.8, 2.5, or 3.3 volt supply. The VL-821 utilizes a high performance, low frequency quartz resonator followed by a custom ASIC to synthesize the output frequency. Features • • • • • • • • • Applications • • • • • • SONET/SDH/DWDM Ethernet, GE, SynchE Storage Area Networking Digital Video Broadband Access Microprocessors/DSP/FPGA Quick delivery CMOS Output 3.2mm x 2.5mm x 1.2mm Output frequencies to 200.00 MHz Tri-state output for the board test and debug -10/70°C or -40/85°C operating temperature Gold over nickel contact pads Hermetically Sealed SMD Package Product is compliant to RoHS directive and fully compatible with lead free assembly Block Diagram VDD Crystal Output Osc PLL E/D Gnd Page1 Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com Performance Specifications Table 1. Electrical Performance, 3.3V Option Parameter Operating Supply Voltage 1 Symbol VDD IDD Min Supply 2.97 -0.05 Typical 3.3 Maximum 3.63 5.0 10 15 20 25 Units V V mA mA mA mA uA MHz ppm Absolute Maximum Operating Voltage Supply Current, Output Enabled 10MHz Duty Cycle3 Output Enable/Disable Output Enable Output Disable Start-Up Time Operating Temp, (Ordering Option) 1] 2] 3] 4] 5] 5 VOH VOL IOH IOL tR/tF SYM 0.9*VDD 0.1*VDD 8 8 3 2 45 Enable/Disable 50 55 V V mA mA ns ns % VIH VIL tSU TOP 0.7*VDD 0.3V*DD 100 2 -10/70 or -40/85 V V KΩ ms °C Internal Pull-Up Resistor A 0.01 uF and a 0.1uF capacitor should be located as close to the supply as possible (to ground). VDD supply ramp should be