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| EURO QUARTZ 8 pin DIL package with trimmer Frequency range: 200.01MHz to 800.0MHz Supply voltage 3.3 Volts Frequency stability from 1ppm over -30 to +75C EMW9T Series TCXO HCMOS 8 pin DIL, 'W' Group EMW9T - OUTLINES AND DIMENSIONS DESCRIPTION EMW9T series TCXOs are packaged in a standard 8 pin DIL package with trimmer. 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: EMW9T VEMW9T 200.01MHz to 800.0MHz Squarewave, HCMOS <2.0ppm at +252C 200.0, 204.8, 311.04, 400.0, 409.6 and 622.08MHz (Partial list) Not implemented (see table) (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) +3.3 Volts Logic High: 90% Vdd min. Logic Low: 10% Vdd max. 65mA max. (Freq. dependant) 1.2ns typical 50%5% 5ms typical, 10ms max. See table below 15pF -55~+125C Mechanical Frequency Tuning: Operating Temperature Range: 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: VEMW9T 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 Offset 10Hz -50 100Hz -77 1kHz -102 10kHz -115 100kHz -108 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 = EMW9T33 at 622.080MHz (dBc/Hz) PART NUMBERING SCHEDULE Example: EMW9T33-409.60-2.5/-30+75 = available, x = not available, ASK = call Technical Sales Series Description TCXO = EMW9T VCTCXO = VEMW9T 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 |
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