EURO QUARTZ EMW44T Series TCXO HCMOS 4 pad SMD, 'W' Group Miniature 11.4 x 9.6 x 4.7mm SMD package Frequency range: 200.01MHz to 800.0MHz Supply voltage 3.3 Volts Frequency stability from ±1ppm over -30 to +75°C EMW44T - OUTLINES AND DIMENSIONS DESCRIPTION EMW44T series TCXOs are packaged in a 4 pad SMD package with trimmer. 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. SPECIFICATION Product Series Code TCXO: VCTCXO: Frequency Range: Output Waveform: Initial Calibration Tolerance: Standard Frequencies: EMW44T VEMW44T 200.01MHz to 800.0MHz Squarewave, HCMOS <±2.0ppm at +25°±2°C 200.0, 204.8, 311.04, 400.0, 409.6 and 622.08MHz (Partial list) ±3ppm minimum (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~+125°C 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: VEMW44T VOLTAGE CONTROL SPECIFICATION Control 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: 2M minimum Modulation Bandwidth: 25kHz minimum Linearity: ±10% maximum SSB PHASE NOISE at 25°C 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 = EMW44T33 10Hz 100Hz 1kHz 10kHz 100kHz -50 -77 -102 -115 -108 at 622.080MHz (dBc/Hz) PART NUMBERING SCHEDULE Example: EMW44T33-409.60-2.5/-30+75 Series Description TCXO = EMW44T VCTCXO = VEMW44T 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 [email protected] www.euroquartz.co.uk