EURO QUARTZ EM39K ULTRA-LOW CURRENT TCXO Highly stable CMOS TCXO with ultra-low supply current Industry-standard package Consumes less than 4mA at 20.0MHz with 3.3V supply Low phase noise RoHS compliant 14 pin Dual-in-Line compatible TCXO OUTLINES AND DIMENSIONS DESCRIPTION EM39K TCXOs and VCTCXOs are packaged in a 14 pin DIL compatible 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: EM39K VEM39K 12.8MHz to 26.0MHz HCMOS <2.0ppm at +252C 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 (Partial list.) See table 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): See table 1.0 ppm max. first year 1.0 ppm max. 10% change 0.3 ppm max. 10% change 1.0ppm max. for one reflow (Measured after 24 hours) +2.8, 3.0 or 3.3 Volts See table See table 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. Supply Voltage: Current Consumption: Output Logic Levels: Rise and Fall Times: Duty Cycle: Start-up Time: Output Load: Fanout (drive capability): RMS Period Jitter: RoHS Status: Packaging: VEM39K VOLTAGE CONTROL SPECIFICATION Control Voltage: Slope Polarity: Linearity: 5 to 12ppm for +1.5 1.5 Volts Positive (increase of control voltage increases output frequency.) 6% typical, 10% maximum 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 25C typ. typ. typ. typ. typ. typ. typ. typ. Offset Part = VEM39K30 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 EM39K33-20.000-2.5/-30+75 Series Description TCXO = EM39K VCTCXO = VEM39K 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 info@euroquartz.co.uk www.euroquartz.co.uk