EM57T

EURO QUARTZ SUPERCEDED BY EM572T DECEMBER 2009 EM57T TCXO 20.0kHz to 50.0kHz CMOS 7 x 5 x 2.5mm SMD, kHz Range Miniature 7 x 5 x 2.5mm SMD package Frequency range: 20.0 to 50.0kHz; 32.768kHz Supply voltage 3.3 or 5.0 Volts Frequency stability from ±1ppm over -30 to +75°C RoHS compliant EM57T - OUTLINES AND DIMENSIONS DESCRIPTION EM57T 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 +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 Models with mech. trimmer: Models without trimmer: Operating Temperature Range: Frequency Stability vs. Ageing: vs. Voltage Change: vs. Load Change: vs. Reflow: Supply Voltage: Output Logic Levels: Rise and Fall Times: Duty Cycle: Start-up Time: Current Consumption: FREQUENCY STABILITY Output Load: Storage Temperature: EM57T VEM57T 32.768kHz Standard frequency 20.0kHz to 50.0kHz Squarewave <1.0ppm (at t. 25°±2°C) <2.0ppm (at t. 25°±2°C) See table ±1.0 ppm max. first year ±0.3 ppm max. ±5% change ±0.3 ppm max. ±10% change ±1ppm max. for one reflow (Measured after 24 hours) +3.3 or +5.0Volts (Specify when ordering) Logic High: 90% Vdd min. Logic Low: 10% Vdd max. 10ns max. 50%±5% 2ms typical, 5ms max. See table below 15pF -55~+125°C VEM57T VOLTAGE CONTROL SPECIFICATION Control Voltage: Standard = +1.5±1.0Volts for all input vo...