sit 8926 137 to 150 mhz automotive aec - q100 oscillator advanced rev 0.2 january 16, 2018 www.sitime.com feature s ? aec - q100 with extended temperature range ( - 55 c to 125 c) ? frequencies between 137 mhz and 150 mhz accurate to 6 decimal points ? excellent total frequency stability as low as 20 ppm ? programmable rise/fall time for emi reduction: 8 options, 0.25 to 40 ns ? industry best g - sensitivity of 0.1 ppb/g ? low power consumption of 4.0 ma typical at 1.8v ? lvcmos output ? industry - standard packages ? qfn: 2.0 x 1.6, 2.5 x 2.0, 3.2 x 2.5 mm 2 ? rohs and reach compliant, pb - free, halogen - free and antimony - free applications ? adas camera ecu electrical specifications table 1 . electrical characteristics all min and max limits are specified over temperature and rated operating voltage with 15 pf output load unless otherwise stated. typical values are at 25c and 3.3v supply voltage. parameters symbol min. typ. max. unit condition frequency range output frequency range f 1 37 .000001 ? 150 .000000 mhz frequency stability and aging frequency stability f_stab - 20 ? +20 ppm inclusive of initial tolerance at 25c, 1st year aging at 25c, and variations over operating temperature, rated power supply voltage. spread = off. - 25 ? +25 ppm - 30 ? +30 ppm - 50 ? +50 ppm operating temperature range operating temperature range t_use - 4 0 ? +85 c industrial, aec - q100 grade 3 - 40 ? +10 5 c extended industrial, aec - q100 grade 2 supply voltage and current consumption supply voltage vdd 1.62 1.8 1.98 v 2.25 2.5 2.75 v 2.52 2.8 3.08 v 2.7 3.0 3.3 v 2.97 3.3 3.63 v 2.25 ? 3.63 v current consumption idd ? 6.5 9.0 ma no load condition, f = 148.5 mhz, vdd = 2.5v to 3.3v ? 5.5 7.0 ma no load condition, f = 148.5 mhz, vdd = 1.8v oe disable current i_od ? 5.5 ? ma f = 148.5 mhz, vdd = 2.5v to 3.3v, oe = gnd, output in high - z state ? 5.1 ? ma f = 148.5 mhz, vdd = 1.8v, oe = gnd, output in high - z state standby current i_std ? 2.6 ? a st = gnd, vdd = 2.5v to 3.3v, output is weakly pulled down ? 0.9 ? p a st = gnd, vdd = 1.8v, output is weakly pulled down
SIT8926 1 37 to 150 mhz automotive aec - q100 oscillator rev. 0.2 page 2 of 7 www.sitime.com table 1 . electrical characteristics (continued) parameters symbol min. typ. max. unit condition lvcmos output characteristics duty cycle dc 45 ? 55 % rise/fall time tr, tf ? 1.3 2.5 ns vdd =1.8v, 20% - 80% , default derive strength ? ? 2 ns vdd = 2.5v to 3. 3v, 20% - 80% , default derive strength output high voltage voh 90% ? ? vdd ioh = - 4 ma (vdd = 3.0v or 3.3v) ioh = - 3 ma (vdd = 2.8v and vdd = 2.5v) ioh = - 2 ma (vdd = 1.8v) output low voltage vol ? ? 10% vdd iol = 4 ma (vdd = 3.0v or 3.3v) iol = 3 ma (vdd = 2.8v and vdd = 2.5v) iol = 2 ma (vdd = 1.8v) input characteristics input high voltage vih 70% ? ? vdd pin 1, oe or st input low voltage vil ? ? 30% vdd pin 1, oe or st input pull - up impedance z_in 50 87 150 k ? pin 1, oe logic high or logic low, or st logic high 2 ? ? m ? pin 1, st logic low startup and resume timing startup time t_start ? ? 5 ms measured from the time vdd reaches its rated minimum value enable/disable time t_oe ? ? 180 ns f = 148.5 mhz. for other frequencies, t_oe = 100 ns + 3 * cycles resume time t_resume ? ? 5 ms measured from the time st pin crosses 50% threshold jitter rms period jitter t_jitt ? 1.6 2.5 ps f = 148.5 mhz, vdd = 2.5 to 3.3v ? 1.8 3 ps f = 148.5 mhz, vdd = 1.8v peak - to - peak period jitter t_pk ? 12 20 ps f = 148.5 mhz, vdd = 2.5 to 3.3v ? 14 30 ps f = 148.5 mhz, vdd = 1.8v rms phase jitter (random) t_phj ? 0.7 ? ps f = 148.5 mhz, vdd = 2.5 to 3.3v ? 1.5 ? ps f = 148.5 mhz, vdd = 1.8v
SIT8926 1 37 to 150 mhz automotive aec - q100 oscillator rev. 0.2 page 3 of 7 www.sitime.com table 2 . pin description pin symbol functionality 1 o e / st / n c/ sd output enable h [1 ] : specified frequency output l: output is high impedance. only output driver is disabled. standby h [1 ] : specified frequency output l: output is low (week pull down). device goes to sleep mode. supply current reduced to i_std. no connect pin1 has no function (any voltage between 0 and vdd or open) 2 gnd power electrical ground 3 out output oscillator output 4 vdd power power supply voltage [2 ] top view figure 1 . pin assignments notes: 1. in oe or st mode, a pull - up resistor of 10 k or less is recommended if pin 1 is not externally driven. if pin 1 needs to be left floating, use the nc option. 2. a capacitor of value 0.1 f or higher between vdd and gnd is required. table 3 . absolute maximum limits attempted operation outside the absolute maximum ratings may cause permanent damage to the part. actual performance of the ic is only guaranteed within the operational specifications, not at ab solute maximum ratings. parameter min. max. unit storage temperature - 65 150 c vdd - 0.5 4 v electrostatic discharge ? 2000 v soldering temperature (follow standard pb free soldering guidelines) ? 260 c junction temperature [5 ] ? 150 c note: 3. exceeding this temperature for extended period of time may damage the device. table 4 . maximum operating junction temperature [6] max operating temperature (ambient) maximum operating junction temperature 70 c 80 c 85 c 95 c note: 4. datasheet specifications are not guaranteed if junction temperature exceeds the maximum operating junction temperature. table 5 . environmental compliance parameter condition/test method mechanical shock mil - std - 883f, method 2002 mechanical vibration mil - std - 883f, method 2007 temperature cycle jesd22, method a104 solderability mil - std - 883f, method 2003 moisture sensitivity level msl1 @ 260 c 1 2 3 4 vdd out gnd oe / / n c
SIT8926 1 37 to 150 mhz automotive aec - q100 oscillator rev. 0.2 page 4 of 7 www.sitime.com timing diagrams 90% vdd vdd pin 4 voltage clk output t_start t_start: time to start from power-off no glitch during start up [7] hz 50 % vdd vdd st voltage clk output t _resume t_resume: time to resume from st hz figure 1. startup timing figure 2. standby resume timing (st mode only) 50% vdd vdd oe voltage clk output t_oe t_oe: time to re-enable the clock output hz 50 % vdd vdd oe voltage clk output t_oe: time to put the output in high z mode hz t_oe figure 3. oe enable timing (oe mode only) figure 4. oe disable timing (oe mode only) note: 5. SIT8926 has ?no runt? pulses and ?no glitch? output during startup or resume .
SIT8926 1 37 to 150 mhz automotive aec - q100 oscillator rev. 0.2 page 5 of 7 www.sitime.com rise/fall time (20% to 80%) vs c load tables table 6 . vdd = 1 .8v rise/fall times for specific c load table 7 . vdd = 2.5v rise/fall times for specific c load rise/fall time typ (ns) drive strength \ c load 5 pf 15 pf 30 pf 45 pf 60 pf l 6.16 11.61 22.00 31.27 39.91 a 3.19 6.35 11.00 16.01 21.52 r 2.11 4.31 7.65 10.77 14.47 b 1.65 3.23 5.79 8.18 11.08 t 0.93 1.91 3.32 4.66 6.48 e 0.78 1.66 2.94 4.09 5.74 u 0.70 1.48 2.64 3.68 5.09 f or " \ 0.65 1.30 2.40 3.35 4.56 rise/fall time typ (ns) drive strength \ c load 5 pf 15 pf 30 pf 45 pf 60 pf l 4.13 8.25 12.82 21.45 27.79 a 2.11 4.27 7.64 11.20 14.49 r 1.45 2.81 5.16 7.65 9.88 b 1.09 2.20 3.88 5.86 7.57 t 0.62 1.28 2.27 3.51 4.45 e or " \ 0.54 1.00 2.01 3.10 4.01 u 0.43 0.96 1.81 2.79 3.65 f 0.34 0.88 1.64 2.54 3.32 table 8 . vdd = 2.8v rise/fall times for specific c load rise/fall time typ drive strength \ c load 5 pf 15 pf 30 pf 45 pf 60 pf l 3.77 7.54 12.28 19.57 25.27 a 1.94 3.90 7.03 10.24 13.34 r 1.29 2.57 4.72 7.01 9.06 b 0.97 2.00 3.54 5.43 6.93 t 0.55 1.12 2.08 3.22 4.08 e or " \ ": d efa u lt 0.44 1.00 1.83 2.82 3.67 u 0.34 0.88 1.64 2.52 3.30 f 0.29 0.81 1.48 2.29 2.99 table 9 . vdd = 3.0v rise/fall times for spe cific c load rise/fall time typ (ns) drive strength \ c load 5 pf 15 pf 30 pf 45 pf 60 pf l 3.60 7.21 11.97 18.74 24.30 a 1.84 3.71 6.72 9.86 12.68 r 1.22 2.46 4.54 6.76 8.62 b 0.89 1.92 3.39 5.20 6.64 t or " \ ": d efa u l t 0.51 1.00 1.97 3.07 3.90 e 0.38 0.92 1.72 2.71 3.51 u 0.30 0.83 1.55 2.40 3.13 f 0.27 0.76 1.39 2.16 2.85 ta ble 10. v dd = 3. 3v rise /f all times for spe cific c lo ad rise/fall time typ (ns) drive strength \ c load 5 pf 15 pf 30 pf 45 pf 60 pf l 3.39 6.88 11.63 17.56 23.59 a 1.74 3.50 6.38 8.98 12.19 r 1.16 2.33 4.29 6.04 8.34 b 0.81 1.82 3.22 4.52 6.33 t or " \ ": d efa u l t 0.46 1.00 1.86 2.60 3.84 e 0.33 0.87 1.64 2.30 3.35 u 0.28 0.79 1.46 2.05 2.93 f 0.25 0.72 1.31 1.83 2.61
SIT8926 1 37 to 150 mhz automotive aec - q100 oscillator rev. 0.2 page 6 of 7 www.sitime.com dimensions and patterns package size ? dimensions (unit: mm) [8 ] recommended land pattern (unit: mm) [9 ] 2.0 x 1.6 x 0.75 mm 2.5 x 2.0 x 0.75 mm 2.5 0.05 2.0 0.05 1.1 1.00 0.75 0.5 0.75 0.05 yxxxx #1 #2 #4 #3 #2 #1 #3 #4 1 . 1 1 . 0 1 . 5 1 . 9 3.2 x 2.5 x 0.75 mm 3 . 2 0.05 2.5 0.05 2.1 0.9 0.7 0.9 0.75 0.05 #1 #2 #4 #3 #2 #1 #3 #4 yxxxx 2 . 2 1 . 9 1 . 4 1 . 2 notes: 6. top marking: y denotes manufacturing origin and xxxx denotes manufacturing lot number. the value of ?y? will depend on the assembly location of the device. 7. a capacitor of value 0.1 f or higher between vdd and gnd is required.
SIT8926 1 37 to 150 mhz automotive aec - q100 oscillator rev. 0.2 page 7 of 7 www.sitime.com ordering information the part no. guide is for reference only. to customize and build an exact part number, use the sitime part number generator . frequency 137.000001 to 150.000000 mhz part family sit9025 revision letter a is the revision temperature range supply voltage 18 for 1.8v 10% 25 for 2.5v 10% 28 for 2.8v 10% 33 for 3.3v 10% feature pin e for output enable s for standby n for no connect frequency stability 1 for 20 ppm 2 for 25 ppm 8 for 25 ppm 3 for 50 ppm package size SIT8926aa - 71-18e- 148.500000d 30 for 3.0v 10% packing method d: 8 mm tape & reel, 3ku reel e: 8 mm tape & reel, 1ku reel blank for bulk xx for 2.5v -10% to 3.3v +10% output drive strength C default (datasheet limits) see tables 7 to 11 for rise/fall times 7 2.0 x 1.6 mm 1 2.5 x 2.0 mm 2 3.2 x 2.5 mm l a r b t e u f i industrial -40oc to 85oc e ext. industrial -40oc to 105oc a automotive -40oc to 125oc m ext. automotive -55oc to 125oc
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