EURO QUARTZ EM53S Series TCXO Clipped Sinewave 5 x 3.2 x1.2mm SMD Micro-miniature SMD package 5 x 3.2mm Stability from ±1ppm over -30° to +75°C Supply Voltage from 2.3 Volts to 5.5 Volts Produced as TCXO or VCTCXO with EFC Readily customized EM53S - OUTLINES AND DIMENSIONS DESCRIPTION EM53 series TCXOs are ceramic SMD TCXOs packaged in an industrystandard, micro-miniature 5 x 3.2mm package. This TCXO can be run from a supply voltage of 2.3 to 5.5 Volts. Close tolerances from ±1ppm over -30° to +75°C are available. The part can be produced as either a standard TCXO or a voltage-controlled TCXO (VCTCXO). SPECIFICATION Product Series Code TCXO: VCTCXO: Frequency Range: Output Waveform: Initial Calibration Tolerance*: Standard Frequencies: EM53S VEM53S 10.0MHz to 27.0MHz Clipped Sinewave <±1ppm at 25°C 10.0, 12.80, 13.0, 14.40, 15.36, 16.384, 19.2, 19.440, and 19.68MHz (Partial list) See table Operating Temperature Range: Frequency Stability vs. Ageing: vs. Voltage Change: vs. Load Change: vs. Reflow: ±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) +2.8, +3.0 or +5.0Volts (Specify when ordering) 0.8V p-p minimum 2ms typical, 5ms max. See table below 10kOhm//10pF ±10% -10dB typical, -7dB max. See table DC block, AC coupled -50° to +100°C Supply Voltage: Output Voltage Level: Start-up Time: Current Consumption: Output Load: Harmonic Distortion: SSB Phase Noise: Output Format: Storage Temperature: VEM53S 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. Slope Polarity: Positive (increase of control voltage increases output frequency.) Input Impedance: 1.0M min. Modulation Bandwidth: 3.0kHz min. measured at -3dB Linearity: 10% max. * Stability over temperature is measured from this initial frequency. PHASE NOISE FREQUENCY STABILITY Frequency Stability (ppm) ±0.5 ±1.0 ±1.5 ±2.0 ±2.5 0 ~ +50 ASK P P P P -10 ~ +60 x P P P P -20 ~ +70 x x P P P -30 ~ +75 x x x P PP -40 ~ +85 x x x x P Temperature Range (°C) P SSB Phase Noise at 25°C = available, x = not available, ASK = call Technical Sales CURRENT CONSUMPTION Supply Voltage Frequency Range Max Current 10.0 to 15MHz 1.5mA 15.01 to 26MHz 2.0mA 26.01 to 27MHz 2.5mA Offset (Hz) 10 100 1k 10k 100k EM53S 13MHz (dBc/Hz) -80 -115 -135 -148 -150 PART NUMBERING PROCEDURE Example: EM53S3-19.44-2.5/-30+75 Series Description TCXO = EM53S VCTCXO = VEM53S Supply Voltage 28 = 2.8 VDC 3 = 3.0 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