sr-a2a70 series size, mm 9 x 14 i/o 8 pad supply voltage 3.3v / 2.5v patent pending, harmonic multiplication for extremely low jitter high frequency output eliminates the need for pll multiplication stabilities over tempera- tures as low as 20ppm eliminates saw oscillator temperature problems features wide frequency range ? 250.0mhz to 1.7ghz user speci? ed tolerance available will withstand smd re? ow temperatures of 183c for 4 minutes maximum high shock resistance, to 1000g high reliability - nel halt/hass quali? ed for crystal oscillator start-up conditions cover connected to ground 3.3v and 2.5v versions available differential sine wave sr-a2a70 series 0435a rev j frequency range: 250.0 mhz-1.7 ghz creating a part number sr - a2a7x - freq package code sr 8 pad 9x14 mm smd input voltage code speci? cation a 3.3 v b 2.5 v tolerance/performance 0 100 ppm 0-70c 1 50 ppm 0-70c 7 25 ppm 0-70c 9 customer speci? c a 20 ppm 0-70c b 50 ppm -40 to +85 c c 100 ppm -40 to +85 c drawing speci cations description the sr-a2a70 series of quartz crystal oscillators provide differential sine wave signals. this device is to operate using positive voltage and uses multiple ground pins for improved signal integrity. recommended board layout dimensions shown in inches (mm). the metallic center pad was designed for mechanical support. grounding of this pad is optional. it measures 0.088 x 0.190 nom (2.24 x 4.83 nom). for the most up to date speci cations on each nel product, log on to our website?ww.nelfc.com electrical connections pin connection 1 v cc 2 ground 3 nc or ground 4 q output 5 /q output 6 ground 7 ground 8 enable 357 beloit street, p.o. box 457, burlington, wi 53105-0457 u.s.a. phone: 262-763-3591 fax: 262-763-2881 email: nelsales@nelfc.com www.nelfc.com
operating conditions and output c haracteristics electrical characteristics parameter symbol conditions min typical max frequency ? ? 250.0 mhz ? 1.7 ghz harmonic spurious ? ? ? -25dbc -20dbc nonharmonic spurious ? ? ? ? -60dbc output voltage v p - p ? 0.60 v 0.85 v ? jitter rms (5) ? ? ? 0.3 psec 0.5 psec enable voltage (3) ? ? 0.7 v cc ? ? disable voltage ? ? ? ? 0.3 v cc frequency stability (1) df/f overall conditions including: -100ppm ? +100ppm voltage, calibration, temp., 10 yr aging, shock, vibration phase noise (2) ? @100hz ? ? -80 dbc/hz ? @1khz ? ? -115 dbc/hz ? @10khz ? ? -130 dbc/hz ? @100khz ? ? -130 dbc/hz ? @1mhz ? ? -135 dbc/hz ? @10mhz ? ? -135 dbc/hz general characteristics parameter symbol conditions min typical max supply voltage v cc 3.3v 5% 3.135 v 3.3 v 3.465 v supply current i cc 50 ohm termination 0.0 ma ? 120 ma output current i o low level output current 0.0 ma ? 50.0 ma operating temperature t a ? 0 o c ? 70 o c storage temperature t s ? -55 o c ? 125 o c lead temperature t l soldering, 10 sec. ? ? 300 o c load (4) 50 ohm termination start-up time t s ? ? 2 ms 10 ms environmental and mechanical characteristics mechanical shock per mil-std-202, method 213, condition e thermal shock per mil-std-833, method 1011, condition a vibration 0.060" double amplitude 10 hz to 55 hz, 35g ? s 55 hz to 2000 hz soldering condition 300 o c for 10 seconds footnotes: 1) standard frequency stability (20, 25, 50 ppm & others available). 2) phase noise characterization available. phase noise is frequency dependent, phase noise speci ? cation references a 1.0ghz part. 3) open to enable pin also enables the output. 4) internally ac coupled output. 5) jitter performance is frequency dependent. please contact factory for full aero ? ex characterization. rms jitter bandwidth of 12khz to 20mhz. differential sine wave sr-a2a70 series 0435a rev j frequency range: 250.0mhz-1.7 ghz
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