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| EURO QUARTZ Miniature 11.4 x 9.6 x 2.5mm SMD package Wide frequency range: 1.25MHz to 156.0MHz Supply voltage 2.8, 3.0, 3.3 or 5.0 Volts Frequency stability from 1ppm over -30 to +75C RoHS compliant DESCRIPTION EM42GT series TCXOs are packaged in a miniature 4 pad ceramic SMD package. With squarewave (CMOS) output, tolerances are available from 1.0ppm over -30 to +75C. The part has a 0.01mF decoupling capacitor built in. SPECIFICATION Product Series Code TCXO: VCTCXO: Frequency Range: Output Waveform: Initial Calibration Tolerance: Standard Frequencies: EM42GT VEM42GT 1.25MHz to 156.0MHz Squarewave, HCMOS <12.0ppm at +252C 10.0, 12.8, 13.0, 14.4, 15.36, 16.384, 19.2, 19.440, 19.68, 25.0, 20.0, 27.0, 38.880, 40.0, 77.760, 125.0, 155.520 (Partial list) See table 1.0 ppm max. first year 0.3 ppm max. 5% change 0.3 ppm max. 10% change 1.0ppm max. for one reflow (Measured after 24 hours) 3ppm minimum +2.8, +3.0, +3.3 or +5.0V (See table) Logic High: 90% Vdd min. Logic Low: 10% Vdd max. 10ns max. 50%10% standard, 50%5% option 5ms typical, 10ms max. See table below 15pF -55~+125C EM42GT Series TCXO HCMOS, 4 pad SMD, MHz Range EM42GT - OUTLINES AND DIMENSIONS Operating Temperature Range: Frequency Stability vs. Ageing: vs. Voltage Change: vs. Load Change: vs. Reflow (SMD type): Mechanical Frequency Tuning: Supply Voltage: Output Logic Levels: Rise and Fall Times: Duty Cycle: Start-up Time: Current Consumption: Output Load: Storage Temperature: INPUT VOLTAGE & CURRENT CONSUMPTION Input Voltage/ Frequency 8.192MHz 10.0MHz 77.760MHz 155.520MHz +2.8V 2mA 3mA 14mA 26mA +3.0 +3.3V 2mA 4mA 17mA 35mA +5.0 V 5mA 7mA 32mA 50mA SSB PHASE NOISE at 25C FREQUENCY STABILITY Frequency Stability (ppm) 0 ~ +50 -10 ~ +60 Temperature Range (C) -20 ~ +70 -30 ~ +75 -40 ~ +85 P 0.5 ASK x x x x 1.0 P P x x x 1.5 P P P x x 2.0 P P P P x 2.5 P P P PP P Part = M42GT33 Offset at 10.0Mhz (dBc/Hz) at 155.250Mhz (dBc/Hz) 10Hz -115 -72 100Hz -135 -110 1kHz -148 -125 10kHz -152 -132 100kHz -155 -125 PART NUMBERING PROCEDURE Example: = available, x = not available, ASK = call Technical Sales EM42GT33-38.880-2.5/-30+75 VEM42GT VOLTAGE CONTROL SPECIFICATION Control Voltage: Standard = +1.51.0Volts for all input voltages. (Contact technical sales if +2.52.0 Volts is required.) Frequency Deviation: 6.0 ppm min. (Vcon = +4.5V1.0V) Slope Polarity: Positive (increase of control voltage increases output frequency.) Input Impedance: 50k minimum Modulation Bandwidth: 20kHz minimum Linearity: 10% maximum Series Description TCXO = EM42GT VCTCXO = VEM42GT Supply Voltage 28 = 2.8VDC 3 = 3.0VDC 33 = 3.3 VDC 5 = 5.0 VDC Frequency (MHz) Stability over OTR (ppm) Operating Temperature Range (OTR) (C) Lower and upper limits. EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 info@euroquartz.co.uk www.euroquartz.co.uk |
Price & Availability of EM42GT3-38880-25-30
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