EURO QUARTZ EML572T TCXO CMOS 7 x 5 x 2.5mm SMD, MHz Range 40MHz to 156.0MHz Miniature 7 x 5 x 2.3mm SMD package Frequency range: 40MHz to 156.0MHz Supply voltage 2.5, 3.0, 3.3 or 5.0 Volts Frequency stability from ±0.5ppm DESCRIPTION EML572T - OUTLINES AND DIMENSIONS EML572T series TCXOs are packaged in a miniature 4 pad ceramic SMD package. With squarewave HCMOS output, tolerances are available from ±0.5ppm. The part has a 0.01mF decoupling capacitor built in. SPECIFICATION Product Series Code TCXO: VCTCXO: Frequency Range: Output Waveform: Initial Calibration Tolerance: Operating Temperature Range: Frequency Stability vs. Ageing: vs. Voltage Change: vs. Load Change: vs. Reflow: EML572T VEML572T 40.0MHz to 156.0MHz Squarewave, HCMOS <±2.0ppm at +25°±2°C ±1.0 ppm max. first year ±0.3 ppm max. ±5% change ±0.3 ppm max. ±10% change ±1.0ppm max. for one reflow ( ) +2.8, +3.0, +3.3 or +5.0V Logic High: 90% Vdd min. Logic Low: 10% Vdd max. 10ns max. 50%±10% standard, 50%±5% option 5ms typ., 10ms max. Supply Voltage: Output Logic Levels: Rise and Fall Times: Duty Cycle: Start-up Time: Current Consumption at 40.000MHz: at 77.760MHz: at 155.520MHz: Output Load: Storage Temperature: 10mA max. 32mA max. 50mA max. 15pF -55~+125°C VEML572T VOLTAGE CONTROL SPECIFICATION Control Voltage Centre: Frequency Deviation: Slope Polarity: Standard = +1.5±1.0 Volts for all input voltages. ±5 ppm (Vcon = +1.5±1.0V) Positive Input Impedance: Modulation Bandwidth: Linearity: 50M minimum 20kHz minimum ±10% maximum FREQUENCY STABILITY Frequency Stability (ppm) Temperature 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 PP P -40 ~ +85 x ASK P P P P = available, x = not available, ASK = call Tech. Sales PART NUMBERING PROCEDURE Example: SSB PHASE NOISE at 25°C, 15pF Offset: dBc/Hz 10Hz 100Hz 1kHz 10kHz 100kHz EM572T33 40.000MHz -85 -102 -121 -130 -132 EM572T33 77.760MHz -74 -99 -98 -95 -90 EM572T33 155.52MHz -68 -96 -100 -99 -90 EML572T33-40.000-2.5/-30+75 Series Description TCXO = EML572T VCTCXO = VEML572T Supply Voltage 25 = 2.5VDC 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. 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