EURO QUARTZ DFXO OSCILLATORS LVDS-LVPECL-CMOS Differential Oscillator 20MHz to 300MHz Page 1 of 3 FEATURES LVDS - LVPECL - CMOS outputs available Low phase noise - Low phase jitter Internal 0.01µF SMD decoupling capacitor option Low Allen deviation High Frequency Fundamental Mode Crystal Extended Industrial temperature range OUTLINE & DIMENSIONS DESCRIPTION The DFXO series, 7 x 5mm SMD differential output oscillator is designed for applications requiring low jitter and ultra high frequency differential poutputs in a small footprint. Offered at frequencies from 20MHz to 300MHz with operation over a wide temperature range (-40° to +105°C). No external decoupling capacitor is required with optional internal capacitor. APPLICATIONS Military & Aerospace Avionics Communications Networking SPECIFICATION Frequency Range: Supply Voltage1: Operating Temperature: Shock, survival: Vibration, Survival: 20MHz to 300MHz +3.3Volts ±10% (+2.5V ±10% available) -40° to +85°C 5,000g 0.3ms, ½ sine 20g, 10-2000Hz swept sine PACKAGING OPTIONS ABSOLUTE MAXIMUM RATINGS Supply Voltage VDD: Storage Temperature: Maximum Process Temperature: ESD Protection Human Body Model -0.5Volts to 1.6 Volts -65° to +150°C 260°C for 10 seconds 2kV. DFXO: Tray Pack Tape and Reel per EIA 481 ENABLE/DISABLE OPTIONS (T/N) TERMINATIONS Designation SM1 SM3 SM5 Termination Gold Plated (Pb Free) Solder dipped Solder dipped (Pb Free) There are two Enable/Disable options, T and N. THe 'T' version has a Tri-state output and continues to oscillate internally when the output is put into the High Z state. As a result, when re-enabled, the oscillator does not have to restart and output with a stable frequency resumes almost immediately. The 'N' version does not have PIN 2 connected internally and so has no enable/disable function. The following table describes the Enable/Disable option 'T'. ENABLE (Pin 1 High) Output Oscillator Current Frequency Output Oscillates Normal DISABLE (Pin 1 Low) High Z State Oscillates Lower than normal EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 [email protected] www.euroquartz.co.uk EURO QUARTZ DFXO OSCILLATORS LVDS-LVPECL-CMOS Differential Oscillator 20MHz to 300MHz Page 2 of 3 SPECIFICATIONS TABLE Parameter Symbol Frequency Stability Units Tightest Standard Maximum ppm ±75 ±100 ±150 -40° to +105°C ppm ±25 ±50 ±100 -40° to +85°C Ageing ppm Calibration Tolerance ppm ±25 ±50 ±100 @25°C, other tolerances available Frequency Tolerance (Total) ppm ±25 ±50 ±100 -40° to +85°C VDD Units mV Minimum 247 Typical 355 Maximum 454 ∆VDD mV -50 Output High Voltage VOH V Output Low Voltage VOL V 0.9 1.1 Offset Voltage V V 1.125 1.2 0 LVDS Output Parameter Output Differential Voltage Symbol VDD Magnitude Change OS ±5 Conditions/Comments First year, dependant upon frequency 50 1.4 1.375 ∆VOS mV 3 25 Power-off Leakage IOXD µA ±1 ±10 Short Circuit Current (Output) IOSD mA -6 -8 Rise Time (Differential Clock) tR ns 0.2 0.7 1 0.2 tF ns Supply Current (Outputs Loaded) IDD mA Duty Cycle (Output Clock) % LVPECL Output Parameter Output High Voltage Symbol Minimum VOUT=VDD or GND (VDD=0V) RL = 100Ω 20% to 80% (See Figures 3 & 4) 0.7 1 30* 80 *Typical for 125MHz 60 @1.25V 40 Units RL = 100Ω (See Figure 2.) 1.6 Offset Magnitude Change Fall Time (Differential Clock) Conditions/Comments Typical Maximum Conditions/Comments VDD -1.025 Output Low Voltage V DD RL = 50Ω to (VDD - 2V) See Figure 5.) -1.620 Rise Time tR ns 0.6 1.5 20% to 80% (See Figure 6) Fall Time tF ns 0.5 1.5 20% to 80% (See Figure 6) Supply Current (Outputs Loaded) IDD mA Duty Cycle (Output Clock) 100 % 40 60 @VDD -1.3V CMOS Output Parameter Short Circuit Current Symbol Units mA Minimum Typical ±50 Output Drive Current IOH mA 20 25 VOH = VDD -0.4V, VDD = 3.3V 20 25 VOL = 0.4V, VDD = 3.3V (CMOS) IOL mA Rise/Fall Time (CMOS) tRtF ns Output Load (CMOS) CL pF Supply Current (Outputs Loaded) IDD mA Duty Cycle (Output Clock) % Maximum 1.5 Conditions/Comments 10% to 90% 3.3V, 15pF 15 40 (See Figure 1) 40 200MHz maximum 60 @50% VDD 0.4 125MHz (12kHz to 20MHz RMS) Timing Jitter Jitter (Integrated) (LVDS) ps 0.3 Jitter (Period) (LVDS) ps 2 Phase Noise - 125MHz Typical (LVDS) 125MHz (10,000 cycles RMS) Offset Frequency @10Hz @100Hz @1kHz @10kHz @100kHz dBc/Hz -85 -110 -133 -143 -148 EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 [email protected] www.euroquartz.co.uk EURO QUARTZ DFXO OSCILLATORS LVDS-LVPECL-CMOS Differential Oscillator 20MHz to 300MHz Page 3 of 3 HOW TO ORDER DFXO OSCILLATORS DFXO C Output Type C = CMOS D = LVDS P = LVPECL Figure 1. 4 T Supply Voltage 2 = 2.5V 4 = 3.3V Enable/Disable Option T or N SM3 - 300.0M , 50 Terminations Blank = SM1 =Gold plated, (Pb free) SM3 = Solder Dipped SM5 = Solder Dipped (Pb free) Frequency M = MHz / 50 - Calibration Tolerance @25° (in ppm) ALTERNATIVELY -- / -- / Frequency Stability over Temp. Range (in ppm) 100 Total Frequency Tolerance (±ppm) /I Temp. Range C = -10° to +70°C I = -40° to +85°C E = -40° to +105°C S = Customer specified /I Temp. Range C = -10° to +70°C I = -40° to +85°C E = -40° to +105°C S = Customer specified Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 [email protected] www.euroquartz.co.uk