EURO QUARTZ EM57K ULTRA-LOW CURRENT TCXO HCMOS 7 x 5 x 2.5mm SMD Highly stable CMOS TCXO with ultra-low supply current Miniaturized 7 x 5mm SMD package Consumes less than 4mA at 20.0MHz with 3.3V supply Low phase noise RoHS compliant OUTLINES AND DIMENSIONS DESCRIPTION EM57K TCXOs and VCTCXOs are packaged in a 7 x 5 x 2.5mm ceramic SMD package. The part offers the stability of a TCXO and the design convenience of HCMOS output with ultra-low current consumption. SPECIFICATION Product Code TCXO: VCTCXO: EM57K VEM57K 12.8MHz to 26.0MHz HCMOS <±2.0ppm at +25°±2°C 12.8, 13.0, 14.4, 15.36, 16.0, 16.384, 16.8, 19.2, 19.44, 19.68, 20.0 and 26.0MHz ( .) Frequency Range: Output Waveform: Initial Calibration Tolerance: Standard Frequencies: Operating Temperature Range: Frequency Stability vs. Temperature vs. Ageing: vs. Voltage Change: vs. Load Change: vs. Reflow (SMD type): ±1.0 ppm max. first year ±1.0 ppm max. ±10% change ±0.3 ppm max. ±10% change ±1.0ppm max. for one reflow ( ) +2.8, 3.0 or 3.3 Volts Supply Voltage: Current Consumption: Output Logic Levels: Rise and Fall Times: Duty Cycle: Start-up Time: Output Load: Fanout (drive capability): 4ns typical with 15pF load 50%±5% 5ms typical, 10ms max. 15pF 12mA typical, 17mA max. (at TTL level) 3ps max. (1 Sigma, 1000 samples; capacitive coupling between Vdd and Ground). RoHS compliant and pB free 16mm tape, 8mm pitch 1000 pieces per reel. RMS Period Jitter: RoHS Status: Packaging: Chamfered pad is Pad 1. Count counter-clockwise when looking at top view. Count clockwise from bottom view. 0.01mF capacitor is built-in. VEM57K VOLTAGE CONTROL SPECIFICATION Control Voltage: Slope Polarity: ±5 to ±12ppm for +1.5 ±1.5 Volts Positive CURRENT CONSUMPTION Input Voltage Frequency +2.8V 12.800MHz 13.000MHz 14.400MHz 16.384MHz 19.200MHz 19.440MHz 20.000MHz 26.000MHz 2.3mA 2.5mA 2.6mA 2.8mA 3.2mA 3.2mA 3.2mA 3.6mA +3.0V typ. typ. typ. typ. typ. typ. typ. typ. 2.4mA 2.6mA 2.8mA 3.0mA 3.3mA 3.4mA 3.4mA 3.8mA +3.3V typ. typ. typ. typ. typ. typ. typ. typ. 2.6mA 2.8mA 3.1mA 3.2mA 3.6mA 3.7mA 3.7mA 4.1mA SSB PHASE NOISE at 25°C typ. typ. typ. typ. typ. typ. typ. typ. Offset Part = VEM57K30 Temp. Range (°C) P 1kHz 10kHz 100kHz 1MHz -80 -110 -130 -135 -142 PART NUMBER FORMAT Example: FREQUENCY STABILITY OVER TEMPERATURE Stability (ppm) at 13.000MHz (dBc/Hz) 100Hz ±1.0 ±2.0 ±2.5 ±3.0 ±4.0 ±5.0 0 ~ +50 P P P P P P -10 ~ +60 ASK P P P P P -20 ~ +70 X P P P P P P P -30 ~ +75 X P P P P -40 ~ +85 X X X ASK ASK EM57K33-20.000-2.5/-30+75 Series Description TCXO = EM57K VCTCXO = VEM57K Supply Voltage 28=2.8V, 30=3.0V, 33=3.3VDC Frequency (MHz) Stability over OTR (±ppm) Operating Temperature Range (OTR) Lower and upper limits (°C) = available, x = not available, ASK = call Technical Sales 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