euro quartz euroquartz limited blacknell lane crewkerne somerset uk ta18 7he tel: +44 (0)1460 230000 fax: +44 (0)1460 230001 email: info@euroquartz.co.uk www.euroquartz.co.uk vcxo 11.4 x 9.6 x 4.7mm 6 pad smd g64 cmos description frequency range 0.625mhz to 50.0mhz cmos/ttl output supply voltage 5.0 v or 3.3 vdc integrated phase jitter 1ps typical part numbering example: 3 g64 b-80n-27.000 supply voltage 3 = +3.3v 5 = +5.0v series designator g64 stability over temperature range (see table) pullability in ppm pullability determinator n = minimum m = maximum t = typical frequency in mhz g64 vcxos, are packaged in a miniature 11.4mm x 9.6mm x 4.7mm 6 pad smd package. typical phase jitter for g series vcxos is <1ps, output cmos/ttl. g series vcxos use fundamental mode crystal osccillators. applications include phase lock loop, sonet/atm, set- top boxes, mpeg , audio/video modulation, video game consoles and hdtv. 10hz -70dbc/hz 100hz -105dbc/hz 1khz -132dbc/hz 10khz -142dbc/hz 1mhz -150dbc/hz offset frequency 27.0mhz phase noise frequency range vdd = +3.3vdc: 0.625mhz to 50.0mhz vdd = +5.0vdc: 1.0mhz to 50.0mhz supply voltage: +3.3 vdc 5% or +5.0vdc5% output logic: ttl/hcmos integrated phase jitter: 1.0ps maximum 12khz to 20mhz period jitter rms: 2.0ps typical period jitter peak to peak: 14ps maximum phase noise: see table below initial frequency accuracy tune to the nominal frequency with: +3.3vdc: vc= 1.65v 0.2v +5.0 vdc: vc= 2.5v 0.2v output voltage high (1): 90% vdd minimum output voltage low (0): 10% vdd maximum control voltage centre +3.3vdc: 1.65v +5.0vdc: 2.5v control voltage range +3.3vdc: 0.3v to 3.0v +5.0vdc: 0.5v to 4.5v pulling range +3.3vdc 80ppm to 120ppm (standard) +5.0vdc: 80ppm to 150ppm (200ppm available) temperature stability: see table output load: cmos = 15pf, ttl = 2 gates 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: 10 to 45ma, frequency dependent linearity: 10% maximum, 6% typical modulation bandwidth: 10khz minimum input impedance: 1 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 rohs status: fully compliant specification stability code 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 ppm temp. range outline & dimensions
|