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 14 pin dual-in-line gf14 vcxo part numbering example: 3gf14b-80n-156.25 supply voltage 3 = +3.3v series designator gf14 stability over temperature range (see table) pullability in ppm pullability determinator n = minimum m = maximum t = typical frequency in mhz outline & dimensions description specification gf14 vcxos, are packaged in an industry-standard, 14 pin dual in line package. gf14 vcxos provide excellent phase jitter performance, less than 1ps. 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 10hz -62dbc/hz 100hz -92dbc/hz 1khz -120dbc/hz 10khz -132dbc/hz 100khz -128dbc/hz 1mhz -140dbc/hz 10mhz -150dbc/hz phase noise offset frequency 155.25mhz 50.01mhz ~ 640.0mhz frequency range 50.01mhz to 640mhz lvcmos output supply voltage 3.3 vdc high q fundamental crystal ultra low jitter less than 1ps frequency range 50.01mhz to 640.0mhz supply voltage: 3.3 vdc 5% output logic: lvcmos integrated phase jitter: 0.4ps typical, 0.5ps maximum (for 156.250mhz) period jitter rms: 3.0ps typical (for 156.250mhz) period jitter peak to peak: 20ps typical (for 156.250mhz) 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 frequency deviation range: 80ppm minimum 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: 0.7ns typical (15pf load) current consumption <100mhz: 30ma maximum (15pf load) >100mhz: 40ma maximum (15pf load) linearity: 10% maximum, 6% typical modulation bandwidth: 25khz minimum input impedance: 60k w minimum slope polarity: monotonic and positive. ( an (transfer function) increase of control voltage increases output frequency.) storage temperature: -50 to +100c ageing: 3ppm per year first year 2ppm per year thereafter enable/disable (tristate): not available ( 4 pad package ) rohs status: fully compliant
|
