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 euro quartz gv42 vcxo outline & dimensions description frequency range 50.01mhz to 200mhz lvcmos output supply voltage 3.3 vdc high q fundamental mode crystal low jitter multiplier circuit low unit cost frequency range: 50.01mhz to 200.0mhz supply voltage: 3.3 vdc 5% output logic: lvcmos integrated phase jitter: 2.3ps typical, 4.0ps maximum (for 155.250mhz) period jitter rms: 4.0ps typical (for 155.250mhz) period jitter peak to peak: 27.0ps typical (for 155.250mhz) phase noise: see table below initial frequency accuracy: tune to the nominal frequency with vc= 1.65 0.2vdc output voltage high (1): 90% vdd minimum output voltage low (0): 10% vdd maximum pulling range: from 30ppm to 150ppm temperature stability: see table output load: 15pf start-up time: 10ms maximum, 5ms typical duty cycle: 50% 5% measured at 50% vdd rise/fall times: 1.2ns typical (15pf load) current consumption: 25ma maximum (15pf load) linearity: 10% maximum, 6% typical modulation bandwidth: 25khz minimum input impedance: 2 m w minimum slope polarity: monotonic and positive. ( an (transfer function) increase of control voltage always increases output frequency.) storage temperature: -50 to +100c ageing: 5ppm per year maximum enable/disable (tristate): not available ( 4 pad package ) rohs status: fully compliant specification gv42 vcxos, are packaged in an industry-standard, 4 pad, 11.4mm x 9.6mm x 2.5mm smd package. the vcxo incorporates a high q fundamental mode crystal and a low jitter multiplier circuit. cmos smd 11.4 x 9.6 x 2.5mm, 4 pad frequency stability a 25 0~+70c b 50 0~+70c c 100 0~+70c d 25 -40~+85c e 50 -40~+85c f 100 -40~+85c if non-standard frequency stability is required use ?i? followed by stability, i.e. i20 for 20ppm stability code stability ppm temp. range part number schedule example: 3gv42b-80n-155.25 supply voltage 3 = +3.3v series designator gv42 stability over temperature range ( see table ) pullability in ppm pullability determinator n = minimum m = maximum t = typical frequency in mhz 10hz -65dbc/hz 100hz -95dbc/hz 1khz -120dbc/hz 10khz -128dbc/hz 100khz -122dbc/hz 1mhz -120dbc/hz 10mhz -140dbc/hz offset frequency 155.25mhz phase noise 50.01mhz ~ 200.0mhz
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