EURO QUARTZ EM43S TCXO 10MHz to 27MHz Clipped Sinewave, 4 Pad, FR4 substrate SMD Industry-standard SMD package 11.4 x 9.6 x 3.0mm Close tolerance stabilities from ±0.5ppm over 0° to +50°C ±1ppm over -40 to +85°C Low power consumption EM43S - OUTLINES AND DIMENSIONS DESCRIPTION EM43S series TCXOs are packaged in the industry-standard 11.4 x 9.6 x 3.0mm SMD package. With clipped sinewave output, close tolerances are available from ±0.5ppm over 0° to 50°C or ±1ppm over -40° to +85°C. The part has low power consumption. SPECIFICATION Product Series Code TCXO: VCTCXO: Frequency Range: Output Waveform: Initial Calibration Tolerance**: Standard Frequencies: EM43S VEM43S 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) 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 ( 0.8V p-p minimum 2ms typical, 5ms max. Supply Voltage: Output Voltage Level: Start-up Time: Current Consumption: Output Load: Harmonic Distortion: SSB Phase Noise: FREQUENCY STABILITY Output Format: Storage Temperature: Environmental: 10kOhm//10pF ±10% -10dB typical, -7dB max. DC block, AC coupled -50° to +100°C RoHS Compliant VEM43S VOLTAGE CONTROL SPECIFICATION Control Voltage: Standard = +1.5±1.0Volts for all input voltages. Frequency Deviation: Slope Polarity: ±6.0 ppm min. Positive Input Impedance: 1.0M min. Modulation Bandwidth: 3.0kHz min. measured at -3dB FREQUENCY STABILITY Frequency Stability (ppm) ±0.5 ±1.0 ±1.5 ±2.0 ±2.5 0 ~ +50 ASK ✓ ✓ ✓ ✓ -10 ~ +60 x ✓ ✓ ✓ ✓ -20 ~ +70 x x ✓ ✓ ✓ -30 ~ +75 x x x ✓ ✓✓ -40 ~ +85 x x x x ✓ Temperature Range (°C) ✓ = available, x = not available, ASK = call Technical Sales PHASE NOISE SSB Phase Noise at 25°C Frequency Range +3.0 V +5.0 V 10.0MHz to 13MHz 1.3mA 2.0mA 13.1MHz to 20MHz 1.5mA 2.2mA 20.1MHz to 27MHz 2.0mA 2.5mA 10 100 1k 10k 100k EM44S 13MHz (dBc/Hz) -80 -115 -135 -148 -150 PART NUMBERING PROCEDURE Example: CURRENT CONSUMPTION Offset (Hz) EM43S3-19.44-2.5/-30+75 Series Description TCXO = EM43S VCTCXO = VEM43S 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