EURO QUARTZ EMV44T Series TCXO HCMOS 4 pad SMD, 'V' Group Miniature 11.4 x 9.6 x 4.7mm SMD package Wide frequency range: 27.0MHz to 200.0MHz Supply voltage 3.3 Volts Frequency stability from 1ppm over -30 to +75C EMV44T - OUTLINES AND DIMENSIONS DESCRIPTION EMV44T 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 Models without trimmer: Models with trimmer: Standard Frequencies: EMV44T VEMV44T 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 Operating Temperature Range: Mechanical Frequency Tuning: Frequency Stability vs. Ageing: vs. Voltage Change: vs. Load Change: vs. Reflow (SMD type): 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 Supply Voltage: Output Logic Levels: Current Consumption: Rise and Fall Times: Duty Cycle: Start-up Time: Current Consumption: Output Load: Storage Temperature: VEMV44T 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: 2M minimum Modulation Bandwidth: 25kHz minimum Linearity: 10% maximum SSB PHASE NOISE at 25C Offset FREQUENCY STABILITY Stability (ppm) Temp. Range (C) P 0.5 1.0 1.5 2.0 2.5 3.0 0 ~ +50 P P P P P P -10 ~ +60 ASK P P P P P -20 ~ +70 X P P P P P -30 ~ +75 X P P P P P -40 ~ +85 X X X ASK ASK P = available, x = not available, ASK = call Technical Sales Part = EMV44T33 10Hz 100Hz 1kHz 10kHz 100kHz at 77.760Mhz (dBc/Hz) -80 -110 -135 -130 -132 at 155.520Mhz (dBc/Hz) -80 -110 -125 -120 -125 PART NUMBERING SCHEDULE Example: EMV44T33-200.00-2.5/-30+75 Series Description TCXO = EMV44T VCTCXO = VEMV44T 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