EURO QUARTZ EM572T Series TCXO HCMOS 7 x 5 x 2.3mm SMD, kHz Range Miniature 7 x 5 x 2.3mm SMD package Frequency range: 20.0kHz to 52.7kHz including 32.768kHz Supply voltage 3.3 or 5.0 Volts Frequency stability from ±1ppm over -30 to +75°C RoHS compliant EM572T - OUTLINES AND DIMENSIONS DESCRIPTION EM572T 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: Standard Frequency: Output Waveform: Initial Calibration Tolerance: Operating Temperature Range: Frequency Stability vs. Ageing: vs. Voltage Change: vs. Load Change: vs. Reflow (SMD type): EM572T VEM572T 20.0kHz to 52.7kHz 32.768kHz Squarewave, HCMOS <±2.0ppm at +25°±2°C See table ±1.0 ppm max. first year ±0.2 ppm max. ±5% change ±0.2 ppm max. ±10% change ±1.0ppm max. for one reflow (Measured after 24 hours) +2.8, +3.0, +3.3 or +5.0V (See table) Logic High: 90% Vdd min. Logic Low: 10% Vdd max. 10ns max. 50%±10% standard, 50%±5% option 10ms max. See table below 15pF -55~+125°C Supply Voltage: Output Logic Levels: Rise and Fall Times: Duty Cycle: Start-up Time: Current Consumption: Output Load: Storage Temperature: FREQUENCY STABILITY Frequency Stability (ppm) Temperature Range (°C) ±0.5 ±1.0 ±1.5 ±2.0 ±2.5 0 ~ +50 P P P P P -10 ~ +60 P P P P P -20 ~ +70 P P P P P -30 ~ +75 ASK P P P STDP -40 ~ +85 x ASK P P P Pad Connections: 1. VCTCXO: Voltage control TCXO: Not connected 2. Ground 3. Output 4. Supply Voltage VEM572T 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: ±5 ppm (Vcon = +1.5±1.0V) Slope Polarity: Positive (increase of control voltage increases output frequency.) Input Impedance: 1M minimum Modulation Bandwidth: 20kHz minimum Linearity: ±10% maximum = available, x = not available, ASK = call Tech. Sales STD = Standard P CURRENT CONSUMPTION Frequency +3.3 V 32.768kHz 8.0mA 50kHz 12mA PART NUMBERING PROCEDURE Example: EM572T33-32.768k-2.5/-30+75 Series Description TCXO = EM572T VCTCXO = VEM572T Supply Voltage 33 = 3.3 VDC 5 = 5.0 VDC Frequency (kHz) 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