EM14GT EUROQUARTZ | Alldatasheet
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EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE TCXO HCMOS, 14 pin DIL, MHz Range EM14GT Series
DESCRIPTION
14 pin DIL industry-standard 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 +75°C RoHS compliant EM14GT series TCXOs are packaged in the industry-standard 14 pin DIL package. With squarewave (CMOS) output, tolerances are available from ±1.0ppm over -30° to +75°C. The part has a 0.01mF decoupling capacitor built in. EM14GT - OUTLINES AND DIMENSIONS SPECIFICATION Product Series Code TCXO: EM14GT VCTCXO: VEM14GT Frequency Range: 1.25MHz to 156.0MHz Output Waveform: Squarewave, HCMOS Initial Calibration Tolerance: <±1.0ppm at +25°±2°C 40.0, 77.760, 125.0, 155.520 ( Partial list) Operating Temperature Range: See table Frequency Stability vs. Ageing: ±1.0 ppm max. first year vs. Voltage Change: ±0.3 ppm max. ±5% change vs. Load Change: ±0.3 ppm max. ±10% change vs. Reflow (SMD type): ±1.0ppm max. for one reflow ( Measured after 24 hours) Mechanical Frequency Tuning: ±3ppm minimum Supply Voltage: +2.8, +3.0, +3.3 or +5.0V ( See table) Output Logic Levels: Logic High: 90% Vdd min. Logic Low: 10% Vdd max. Rise and Fall Times: 10ns max. Duty Cycle: 50%±10% standard, 50%±5% option Start-up Time: 5ms typical, 10ms max. Current Consumption: See table below Output Load: 15pF Storage Temperature: -55~+125°C PART NUMBERING SCHEDULE Example: EM14GT33-38.880-2.5/-30+75 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. Series Description TCXO = EM14GT VCTCXO = VEM14GTControl Voltage: Standard = +1.5±1.0Volts for all input voltages. (Contact technical sales if +2.5±2.0 Volts is required.) Frequency Deviation: ±6.0 ppm min. (Vcon = +4.5V±1.0V) Slope Polarity: Positive (increase of control voltage increases output frequency.) Input Impedance: 50k minimum Modulation Bandwidth: 20kHz minimum Linearity: ±10% maximum VEM14GT VOLTAGE CONTROL SPECIFICATION Offset 10Hz 100Hz 1kHz 10kHz 100kHz Part = EM14GT33 at 10.0Mhz (dBc/Hz) -115 -135 -148 -152 -155 at 155.250Mhz (dBc/Hz) -72 -110 -125 -132 -125 SSB PHASE NOISE at 25°C Input Voltage/ Frequency 8.192MHz 2mA 2mA 5mA 10.0MHz 3mA 4mA 7mA 77.760MHz 14mA 17mA 32mA 155.520MHz 26mA 35mA 50mA INPUT VOLTAGE & CURRENT CONSUMPTION Temperature Range (°C) 0 ~ +50 ASK P P P P -10 ~ +60 x P P P P -20 ~ +70 x x P P P -30 ~ +75 x x x P PP -40 ~ +85 x x x x P P = available, x = not available, ASK = call Technical Sales FREQUENCY STABILITY