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| EURO QUARTZ 14 pin DIL compatible package Wide frequency range: 27.0MHz to 200.0MHz Supply voltage 3.3 Volts Frequency stability from 1ppm over -30 to +75C EMV38T Series TCXO HCMOS 14 pin DIL compatible, 'V' Group EMV38T - OUTLINES AND DIMENSIONS DESCRIPTION EMV38T series TCXOs are packaged in a 14 pin DIL compatible 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 Models without trimmer: Models with trimmer: Standard Frequencies: EMV38T VEMV38T 27.0MHz to 200.0MHz Squarewave, HCMOS <2.0ppm <1.0ppm 30.0, 32.768, 38.880, 40.0, 50.0, 54.0, 64.0, 65.536, 77.76, 80.0, 128.0, 160.0 and 200.0MHz (Partial list) See table 3.0ppm minimum 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) +3.3 Volts Logic High: 90% Vdd min. Logic Low: 10% Vdd max. 40mA maximum 10ns typical 50%10% standard, 5ms typical, 10ms max. See table below 15pF -55~+125C Operating Temperature Range: Mechanical Frequency Tuning: Frequency Stability vs. Ageing: vs. Voltage Change: vs. Load Change: vs. Reflow (SMD type): Supply Voltage: Output Logic Levels: Current Consumption: Rise and Fall Times: Duty Cycle: Start-up Time: Current Consumption: Output Load: Storage Temperature: VEMV38T VOLTAGE CONTROL SPECIFICATION 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: 2M minimum Modulation Bandwidth: 25kHz minimum Linearity: 10% maximum Control Voltage: SSB PHASE NOISE at 25C FREQUENCY STABILITY Stability (ppm) 0 ~ +50 -10 ~ +60 Temp. Range (C) -20 ~ +70 -30 ~ +75 -40 ~ +85 P 0.5 P ASK X X X 1.0 P P P P X 1.5 P P P P X 2.0 P P P P ASK 2.5 P P P P ASK 3.0 P P P P P Part = EMV38T33 Offset at 77.760Mhz (dBc/Hz) at 155.520Mhz (dBc/Hz) 10Hz -80 -80 100Hz -110 -110 1kHz -135 -125 10kHz -130 -120 100kHz -132 -125 PART NUMBERING SCHEDULE Example: EMV38T33-200.00-2.5/-30+75 = available, x = not available, ASK = call Technical Sales Series Description TCXO = EMV38T VCTCXO = VEMV38T Supply Voltage 33 = 3.3 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 VEV38T33-20000-25-30
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