euro quartz 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 tcxo hcmos 11.4 x 9.6 x 4.7mm smd EM64K ultra-low current description highly stable cmos tcxo with ultra-low supply current industry-standard smd package consumes less than 4ma at 20.0mhz with 3.3v supply low phase noise rohs compliant EM64K tcxos and vctcxos are packaged in a 11.4 x 9.6 x 4.7mm ceramic smd package. the part offers the stability of a tcxo and the design convenience of hcmos output with ultra-low current consumption. outlines and dimensions p = available, x = not available, ask = call technical sales specification product code tcxo: EM64K vctcxo: vEM64K frequency range: 12.8mhz to 26.0mhz output waveform: hcmos initial calibration tolerance: <2.0ppm at +252c standard frequencies: 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 .) operating temperature range: see table frequency stability vs. temperature see table vs. ageing: 1.0 ppm max. first year vs. voltage change: 1.0 ppm max. 10% change vs. load change: 0.3 ppm max. 10% change vs. reflow (smd type): 1.0ppm max. for one reflow ( measured after 24 hours ) supply voltage: +2.8, 3.0 or 3.3 volts current consumption: see table output logic levels: see table rise and fall times: 4ns typical with 15pf load duty cycle: 50%5% start-up time: 5ms typical, 10ms max. output load: 15pf fanout (drive capability): 12ma typical, 17ma max. (at ttl level) rms period jitter: 3ps max. (1 sigma, 1000 samples; capacitive coupling between vdd and ground). rohs status: rohs compliant and pb free packaging: 16mm tape, 8mm pitch 1000 pieces per reel. part number format example: EM64K33-20.000-2.5/-30+75 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) series description tcxo = EM64K vctcxo = vEM64K current consumption offset 100hz 1khz 10khz 100khz 1mhz part = vEM64K30 at 13.000mhz (dbc/hz) -80 -110 -130 -135 -142 ssb phase noise at 25c 12.800mhz 2.3ma typ. 2.4ma typ. 2.6ma typ. 13.000mhz 2.5ma typ. 2.6ma typ. 2.8ma typ. 14.400mhz 2.6ma typ. 2.8ma typ. 3.1ma typ. 16.384mhz 2.8ma typ. 3.0ma typ. 3.2ma typ. 19.200mhz 3.2ma typ. 3.3ma typ. 3.6ma typ. 19.440mhz 3.2ma typ. 3.4ma typ. 3.7ma typ. 20.000mhz 3.2ma typ. 3.4ma typ. 3.7ma typ. 26.000mhz 3.6ma typ. 3.8ma typ. 4.1ma typ. input voltage +2.8v +3.0v +3.3v frequency stability (ppm) 1.0 2.0 2.5 3.0 4.0 5.0 temp. range (c) 0 ~ +50 p p p p p p -10 ~ +60 ask p p p p p -20 ~ +70 x p p p p p -30 ~ +75 x p p p p p -40 ~ +85 x x x ask ask p frequency stability over temperature control voltage: 5 to 12ppm for +1.5 1.5 volts slope polarity: positive (increase of control voltage increases output frequency.) linearity: 6% typical, 10% maximum vEM64K voltage control specification
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