SURFACE-MOUNT OSCILLATORS XO44 SERIES SMD OSCILLATOR 4 Pad SMD Package OUTLINES AND DIMENSIONS DESCRIPTION The Euroquartz XO44 series of surface-mount oscillators consist of a TTL and CMOS compatible hybrid circuit coupled with a slimline UM-1quartz hermetically sealed crystal. The oscillators provide a true SMD part that may be supplied in a short leadtime, even for custom frequencies. FEATURES * * * * * * * Industry-standard 4 pad SMD package Wide frequency range, from 20kHz to 160MHz Wide operating temperature range, -40 to +85C Supply Voltage 3.3 Volts or 5.0 Volts Open, ceramic package with hermetically sealed crystal Optional Tristate function Custom specifications produced and delivered quickly SPECIFICATION Input Voltage: +3.3 VDC +5.0VDC Frequency Range: 20kHz ~ 125MHz 20kHz ~ 160MHz Output Logic: TTL/HCMOS TTL/HCMOS Output Voltage TTL HIGH `1': 2.4V min. 2.4V min. HCMOS HIGH'1': 2.97V min. Vcc -0.5V min. TTL LOW `0': 0.4V max. 0.4V max. HCMOS LOW `0': 0.33V max. 0.5V max. Operating Temp. Range Commercial: 0 to +70C Industrial: -40 to +85C Military: -55 to +125C Frequency Stability: see table Output Load TTL: 2 to 10TTL gates HCMOS: 15pF (50pF available) Rise/Fall Times TTL 10ns max., 3ns typical (from 0.4V to 2.4V) (RL=390, CL=15pF) HCMOS: 10ns max., 3ns typical (from 10% to 90%Vdd, CL = 15pF) Symmetry TTL: 40% min. 60% max. (Measured at 1.4V) HCMOS: 40% min. 60% max . (Measured at 50%Vdd) Start-up Time: 10ms max, 5ms typical Current Consumption: 15mA to 45mA (Frequency dependent) Tristate Option: Output is high impedance when `0' (<0.8V) is applied to Pin 1. (Internal pull-up) Disable time = 150ns max. Storage Temperature: -55 to +125C Ageing: 5ppm/year max. LOW FREQUENCY /LOW POWER If you require Hz or kHz frequency oscillators with A current consumption, for example 32.768kHz with 14A current consumption consider our `LPO' oscillator series. STABILITY & PART NUMBER SELECTION Euroquartz Model Number XO44025UC XO44050UC XO44100UC XO44025UI XO44050UI XO44100UI Stability ppm Operating Temperature Range Supply Voltage 25 50 100 25 50 100 0~+70C 0~+70C 0~+70C -40~+85C -40~+85C -40~+85C 3.3/5.0V 3.3/5.0V 3.3/5.0V 3.3/5.0V 3.3/5.0V 3.3/5.0V PART NUMBER GENERATION XO44 Series oscillator part numbers are derived as follows: EXAMPLE: 16.000MHz XO44050UCT3 Frequency Model No: (See table above) Stability 025 = 25ppm 050 = 50ppm 100 = 100ppm U = CMOS/TTL o/p Temperature Range C = 0~+70C I = -40~+85C T = Tristate Blank = 5.0 Volts Supply 3= 3.3 Volts Supply CUSTOM PARTS The Euroquartz factory are able to produce custom frequency and specification specification XO44 series oscillators with short leadtimes. Check with Euroquartz Sales for details. EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE Tel: +44 1460 230000 Fax: +44 1460 230001 email: info@euroquartz.co.uk web: www.euroquartz.co.uk