page 1 of 10 i spec 01 i rev.00 i november 2014 crystals ? oscillators ? ceramic resonators ? ceramic filters ? saw components petermann - technik gmbh lechwiesenstr. 13 ? d - 86899 ? landsberg am lech tel: +49/8191/305395 ? fax: +49/8191/305397 info@petermann - technik.com ? www.petermann - technik.com + ultra - low power oscillator for low cost + excellent long time reliability + smallest footprint 1.5 x 0.8 mm + ultra - low power: <1 a + directly interfaces to xtal inputs + supports coin - cell or super - cap battery backup voltages + oscillator output eliminates external load caps + internal filtering eliminates external v dd bypass cap + programmable output swing to reduce power + pb - free, rohs and reach compliant / msl1@260 applications general data notes: 1.no board level underfill. measured as peak - to - peak/2. inclusive of 3x - reflow and 20% load variation. tested with agile nt 53132a frequency counter. due to the low operating frequency, the gate time must be 100 ms to ensure an accurate frequency measurement. 2. initial offset is defined as the frequency deviation from the ideal 32.768 khz at room temperature, post reflow. 3. core operating current does not include output driver operating current or load current. to derive total operating current (n o load), add core operating current + output driver operating current, which is a function of the output voltage swing. see the description titled, calculating loa d c urrent. 4. measured from the time v dd reaches 1.5v. features parameter and conditions symbol min. typ. max. unit condition frequency fixed output frequency f_out 32.768 khz frequency stability frequency tolerance [1] f_tol 10 ppm t a = 25c, post reflow, vdd: 1.5v C 3.63v. 20 ppm t a = 25c, post reflow with board - level underfill, vdd: 1.5v C 3.63v. frequency stability [2] ) f_stab 75 ppm t a = - 10c to +70c, v dd : 1.5v C 3.63v. 100 ppm t a = - 40c to +85c, v dd : 1.5v C 3.63v. 250 ppm t a = - 10c to +70c, v dd : 1.2v C 1.5v. 25c aging f_aging - 1.0 1.0 ppm 1st year operating temperature range operating temperature range t_use - 10 C +70 c commercial - 40 C +85 c industrial storage temperature range t_stor - 55 C +125 c storage supply voltage and current consumption operating supply voltage v dd 1.2 3.63 v t a = - 10c to +70c 1.5 3.63 v t a = - 40c to +85c core operating current [3] i dd 0.90 a t a = 25c, v dd = 1.8v. no load 1.3 a t a = - 10c to +70c, v dd max: = 3.63v. no load 1.4 a t a = - 40c to +85c, v dd max:= 3.63v. no load output stage operating current [3] i dd_out 0.065 0.125 a/vpp t a = - 40c to +85c, vdd: 1.5v C 3.63v. no load power - supply ramp t_ v dd _ ramp 100 ms v dd ramp - up 0 to 90% v dd , t a = - 40c to +85c start - up time at power - up [4] t_start 180 300 ms t a = 25c 10c, valid output 450 ms t a = - 40c to +70c, valid output 500 ms t a = +85c, valid output ultra - low power oscillator 32.768 khz series ?ulpo - rb1 + smart phones + tablets + health and wellness monitors + fitness watches + sport video cams + wireless keypads + ultra - small notebook pc + pulse - per - second (pps) timekeeping + rtc reference clock + battery management timekeeping + wearables + iot + gps + smart metering + home automation
page 2 of 10 i spec 01 i rev.00 i november 2014 crystals ? oscillators ? ceramic resonators ? ceramic filters ? saw components petermann - technik gmbh lechwiesenstr. 13 ? d - 86899 ? landsberg am lech tel: +49/8191/305395 ? fax: +49/8191/305397 info@petermann - technik.com ? www.petermann - technik.com general data (continued) p in description parameter and conditions symbol min. typ . max. unit condition jitter performance (t a = over temp) period jitter t_jitt 35 ns rms cycles = 10,000, t a = 25c, v dd = 1.5v C 3.63v lvcmos output (standard version t a = C 40/+85c, typica l values are at t a = 25c) output rise/fall time tf, tf 100 200 ns 10 - 90% (v dd ), 15 pf load v dd = 1.5v to 3.63v output clock duty cycle dc 48 52 % output voltage high voh 90% v v dd : 1.5v C 3.63v. i oh = - 10 a, 15 pf load output voltage low vol 10% v v dd : 1.5v C 3.63v. i ol = 10 a, 15 pf load programmable , reduced swing output (adaptable according to customers requirement) output rise/fall time tf, tf 200 ns 30 - 70% (v ol /v oh ), 10 pf load output clock duty cycle dc 48 52 % ac - coupled programmable output swing v_sw 0.20 to 0.80 v ulpo - rb1 does not internally ac - couple. this output descrip- tion is intended for a receiver that is ac - coupled. v dd : 1.5v C 3.63v, 10 pf load, i oh / i ol = 0.2 a. dc - biased programmable output voltage high range voh 0.6 to 1.225 v vdd: 1.5v C 3.63v. ioh = - 0.2 a, 10 pf load. dc - biased programmable output voltage low range vol 0.35 to 0.80 v vdd: 1.5v C 3.63v. iol = 0.2 a, 10 pf load. programmable output voltage swing tolerance - 0.055 0.055 v t a = - 40c to +85c, vdd = 1.5v to 3.63v. excellent reliability data mtbf 500 million hours shock resistance 10.000 g vibration resistance 70 g pin symbol i/o functionality 1,4 gnd power supply ground connect to ground. acceptable to connect pin 1 and 4 together. both pins must be connected to gnd. 2 clk out out oscillator clock output. the clk can drive into a ref clk input or into an asic or chip - sets 32khz xtal input. when driving into an asic or chip - set oscillator input (x in and x out), the clk out is typically connected directly to the xtal in pin. no need for load capacitors. the output driver is intended to be insensitive to capacitive loading. 3 v dd power supply connect to power supply 1.5v vdd 3.63v. under normal operating conditions, v dd does not require external bypass/ decoupling capacitor(s). for more information about the internal power - supply filtering, see power - supply noise immunity section in the detailed description. contact factory for applications that require a wider operating supply voltage range. gnd clk out v dd 1 2 3 4 figure 1. 1.5x0.8 mm package (top view) gnd
page 3 of 10 i spec 01 i rev.00 i november 2014 crystals ? oscillators ? ceramic resonators ? ceramic filters ? saw components petermann - technik gmbh lechwiesenstr. 13 ? d - 86899 ? landsberg am lech tel: +49/8191/305395 ? fax: +49/8191/305397 info@petermann - technik.com ? www.petermann - technik.com the ulpo - rb1 is the smallest, lowest power 32.768 khz oscilla- tor optimized for mobile and other battery powered applications. the silicon oscillator technology enables the smallest footprint w i t h 1 . 5x 0 .8 mm packaging. this device reduces the 32.768 khz footprint by as much as 85% compared to existing 2.0 x 1.2 mm smd - xtal package. unlike xtals, the ulpo - rb1 oscillator output ena- bles greater component placement flexibility and eliminates exter- nal load capacitors, thus saving additional component count and board space. and unlike standard oscillators, the ulpo - rb1 features pro- grammable output swing, a factory programmable output that reduces the voltage swing to minimize power. the 1.2v to 3.63v operating supply voltage range makes it an ideal solution for mobile applications that incorporate a low - voltage, battery - back - up source such as a coin - cell or super - cap. the ulpo - rb1 oscillators consist of a silicon resonators and a pro- grammable analog circuit using a key sealing process ensuring best performance and reliability. frequency stability the ulpo - rb1 is factory calibrated to guarantee frequency stabil- ity to be less than 10 ppm at room temperature and less than 100 ppm over the full - 40c to +85c temperature range. unlike quartz crystals that have a classic tuning fork parabola temperature curve with a 25c turnover point, the ulpo - rb1 temperature coefficient is extremely flat across temperature. the device maintains less than 100 ppm frequency stability over the full operating temperature range of C 40/+85c when the operating voltage is between 1.5 and 3.63v as shown in figure 2. functionality is guaranteed over the 1.2v - 3.63v operating supply voltage range. however, frequency stability degrades below 1.5v and steadily degrades as it approaches the 1.2v minimum supply due to the internal regulator limitations. between 1.2v and 1.5v, the fre- quency stability is 250 ppm max. over temperature. when measuring the ulpo - rb1 output frequency with a frequency counter, it is important to make sure the counter's gate time is > 100ms. the slow frequency of a 32.768 khz clock will give false read- ings with faster gate times. contact petermann - technik for applications that require a wider supply voltage range >3.63v or lower frequency options as low as 1hz. description power supply noise i mmunity in addition to eliminating external output load capacitors common with standard xtals, this device includes special power supply filter- ing and thus, eliminates the need for an external v dd bypass - decoupling capacitor to keep the footprint as small as possible. inter- nal power supply filtering is designed to reject more than 150 mv noise and frequency components from low frequency to more than 10 mhz. output voltage the ulpo - rb1 has two output voltage options. one option is a stand- ard lvcmos rail - to - rail dc - coupled output swing, which is mostly used. the second option is the programmable reduced swing output for reducing current consumption. output swing is customer specific and factory programmed between 200 mv and 800 mv. for dc - coupled applications, output voh and vol are individually factory programmed to the customers requirement. voh programming range is between 600 mv and 1.225v in 100 mv increments. similarly, vol programming range is between 350 mv and 800 mv. for exam- ple; an ic or p is internally 1.8v logic compatible and requires a 1.2v vih and a 0.6v vil. simply select ulpo - rb1 programmable output swing factory programming code to be d14 and the correct output thresholds will match the downstream ic or p input requirements. interface logic will vary by manufacturer and we recommend that you review the input voltage requirements for the input interface. for dc - biased output configuration, the minimum vol is limited to 350mv and the maximum allowable swing voh - vol) is 750mv. for exam- ple, 1.1v voh and 400mv vol is acceptable, but 1.2v voh and 400 mv vol is not acceptable. when the output is interfacing to an xtal input that is internally ac - coupied, the ulpo - rb1 output can be factory programmed to match the input swing requirements. for example, if a pmic or mcu input is internally ac - coupied and requires an 800mv swing, then simply choose the ulpo - rb1 programming code "aa8" in the part number. it is important to note that the ulpo - rb1 does not include internal ac - coupling capacitors. please see the part number ordering sec- tion at the end of the datasheet for more information about the part number ordering scheme. figure 2. petermann - technik vs. quartz 150 - 40 20 60 80 - 50 - 100 - 150 frequency stability (ppm) temperature (c) - 20 0 40 100 50 0 quartz xtal C 160 to C 220 ppm over temp ulpo - rb1 measured ulpo - rb1 - industrial temp specification ulpo - rb1 10 ppm max. @ 25c
page 4 of 10 i spec 01 i rev.00 i november 2014 crystals ? oscillators ? ceramic resonators ? ceramic filters ? saw components petermann - technik gmbh lechwiesenstr. 13 ? d - 86899 ? landsberg am lech tel: +49/8191/305395 ? fax: +49/8191/305397 info@petermann - technik.com ? www.petermann - technik.com example: + programmable output swing part number coding: aa2. example part number: ulpo - rb1 - 1508 - 75 - d - 32.768 khz - t - aa2 + output voltage swing: 0.250v the values listed in tables 1 and - 2 are nominal values at 25c and will exhibit a tolerance of 55 mv across v dd and - 40c to 85c oper- ating temperature range. ulpo - rb1 full swing lvcmos output the ulpo - rb1 can be factory programmed to generate full - swing lvcmos levels. figure 4 shows the typical lvcmos waveform (v dd = 1.8v) at room temperature into a 15 pf load. example: + standard lvcmos rail - to - rail output part number coding is always s + example part number: ulpo - rb1 - 33 - 1508 - 75 - d - 32.768khz - t - s figure 3. ulpo - rb1 - 33 - 1508 - 75 - d - 32.768khz - t - s output waveform (10 pf load ) figure 4. lvcmos waveform (v dd = 1.8v) into 15 pf load table 1 shows the supported programmable output swing v oh , v ol factory programming options. table 1. acceptable v oh /v ol programmable output swing levels vol/voh 1.225 1.100 1.000 0.900 0.800 0.700 0.600 0.800 d28 d18 d08 0.700 d27 d17 d07 d97 0.525 d26 d16 d06 d96 d86 0.500 d25 d15 d05 d95 d85 d75 0.400 d14 d04 d94 d84 d74 d64 0.350 d13 d03 d93 d83 d73 d63 power - up the ulpo - rb1 starts - up to a valid output frequency within 300 ms (150ms typ). to ensure the device starts - up within the specified limit, make sure the power - supply ramps - up in approximately 10 - 20ms (to within 90% of v dd ). start - up time is measured from the time v dd reaches 1.5v. for applications that operate between 1.2v and 1.5v, the start - up time will be longer. ulpo - rb1 programmabl e output swing figure 4 shows a typical ulpo - rb1 output waveform (into a 10 pf load) when factory programmed for a 0.70v swing and dc bias (v oh / v ol ) for 1.8v logic: example: + programmable output swing part number coding: d14. example part number: ulpo - rb1 - 18 - 1508 - 75 - d - 32.768khz - t - d14 + v oh = 1.1v, v ol = 0.4v (v sw = 0.70v) table 2 shows the supported ac coupled swing levels. the ac - coupled terminology refers to the programming description for appli- cations where the downstream chipset includes an internal ac - coupling capacitor, and therefore, only the output swing is important and v oh /v ol are not relevant. for these applications, refer to table 2 for the acceptable voltage swing options. table 2. acceptable ac - coupled swing levels swing 0.800 0.700 0.600 0.500 0.400 0.300 0.250 0.200 output code aa8 aa7 aa6 aa5 aa4 aa3 aa2 aa1
page 5 of 10 i spec 01 i rev.00 i november 2014 crystals ? oscillators ? ceramic resonators ? ceramic filters ? saw components petermann - technik gmbh lechwiesenstr. 13 ? d - 86899 ? landsberg am lech tel: +49/8191/305395 ? fax: +49/8191/305397 info@petermann - technik.com ? www.petermann - technik.com calculating load cur rent no load supply current when calculating no - load power for the ulpo - rb1, the core and output driver components need to be added. since the output voltage swing can be programmed for reduced swing between 250 mv and 800 mv, the output driver current is variable. therefore, no - load operating supply current is broken into two sections; core and output driver. the equation is as follows: total supply current (no load) = i dd core + (65na/v)(voutpp) example 1: full - swing lvcmos + v dd = 1.8v + i dd core = 900na (typ) + vout pp = 1.8v supply current = 900na + (65na/v)(1.8v) = 1017na example 2: programmed reduced swing + v dd = 1.8v + i dd core = 900na (typ) + vout pp (programmable) = voh C vol = 1.1v - 0.6v = 500 mv supply current = 900na + (65na/v)(0.5v) = 932na total supply current with load to calculate the total supply current, including the load, follow the equation listed below. note the 30% reduction in power with pro- grammable output swing. total current = i dd core + i dd output driver (65na/v*vout pp ) + load current (c*v*f) example 1: full - swing lvcmos + v dd = 1.8v + i dd core = 900na + load capacitance = 10pf + i dd output driver: (65na/v)(1.8v) = 117na + load current: (10pf)(1.8v)(32.768khz) = 590na + total current = 900na+117na+590na = 1.6a example 2: programmed reduced swing + v dd = 1.8v + i dd core = 900na + load capacitance = 10pf + vout pp (programmable): voh C vol = 1.1v - 0.6v = 500mv + idd output driver: (65na/v)(0.5v) = 33na + load current: (10pf)(0.5v)(32.768khz) =164na + total current = 900na + 33na + 164na = 1.1a
page 6 of 10 i spec 01 i rev.00 i november 2014 crystals ? oscillators ? ceramic resonators ? ceramic filters ? saw components petermann - technik gmbh lechwiesenstr. 13 ? d - 86899 ? landsberg am lech tel: +49/8191/305395 ? fax: +49/8191/305397 info@petermann - technik.com ? www.petermann - technik.com typical operating cu rves figure 5. initial tolerance hi stogram figure 9. start - up time figure 6. frequency stability over temperature frequency stability (ppm) temperature (c) number of devices initial tolerance (ppm) t a = 25c post reflow, no underfill figure 7. core current over t emperature figure 8. output stage curre nt over temperature output stage current (na/vpp) temperature (c) voltage (v) time (sec) core current (ua) temperature (c)
page 7 of 10 i spec 01 i rev.00 i november 2014 crystals ? oscillators ? ceramic resonators ? ceramic filters ? saw components petermann - technik gmbh lechwiesenstr. 13 ? d - 86899 ? landsberg am lech tel: +49/8191/305395 ? fax: +49/8191/305397 info@petermann - technik.com ? www.petermann - technik.com typical operating cu rves figure 10. power supply noi se rejection (+/ - 150mv noise) noise injection frequency (hz) figure 11. programmable output swing waveform (v oh = 1.1v, v ol = 0.4v, ulpo - rb1) figure 12. lvcmos output wave form (v swing = 1.8v, ulpo - rb1) frequency error (ppm)
page 8 of 10 i spec 01 i rev.00 i november 2014 crystals ? oscillators ? ceramic resonators ? ceramic filters ? saw components petermann - technik gmbh lechwiesenstr. 13 ? d - 86899 ? landsberg am lech tel: +49/8191/305395 ? fax: +49/8191/305397 info@petermann - technik.com ? www.petermann - technik.com dimensions and patte rns package size C dimen sions (unit:mm) 1.55 x 0.85 mm recommended land pat tern (unit:mm) reflow solder profi le #1 #2 0.840.02 1.00 bsc #4 #3 #1 #2 #3 0.41 bsc 0.3150.015 0.60 max 0.04 polymer coating 1.540.02 #4 recommended 4 - mil (0.1mm) stencil thickness (soldermask openings shown with heavy dashed line) 1.00 #4 0.41 #1 #3 #2 0.35 (4x) soldermask opening ? 0.25 (4x) nsmd pads
page 9 of 10 i spec 01 i rev.00 i november 2014 crystals ? oscillators ? ceramic resonators ? ceramic filters ? saw components petermann - technik gmbh lechwiesenstr. 13 ? d - 86899 ? landsberg am lech tel: +49/8191/305395 ? fax: +49/8191/305397 info@petermann - technik.com ? www.petermann - technik.com ordering information e xample : ulpo - rb1 - x1 - 1508 - 75 - d - 32.768khz - t - s please indicate your required parameters output drive strength s standard (datasheet limits) for rail - to - rail lvcmos dc - coupled please contact peter- mann - technik for other values oscillator family ulpo - rb1 supply voltage x1 any 1.2 - 3.63 for C 10/+70c x2 any 1.5 - 3.63 for C 40/+85c frequency 32.768 k h z package size 1508 for 1.5 x 0.8 mm frequency stability 75 for 75 ppm ( - 10 to 70oc) 100 for 100 ppm ( - 40 to 85oc) ulpo - rb1 - x1 - 1508 - 75 - d - 32.768khz - t - s temperature range d for - 10 +70c w for - 40 +85c packing method t: tape & reel t: tape & reel 3000 pcs . per reel smaller quantities possible express samples are deliverable on the same day if ordered until 02:00 pm!
page 10 of 10 i spec 01 i rev.00 i november crystals ? oscillators ? ceramic resonators ? ceramic filters ? saw components petermann - technik gmbh lechwiesenstr. 13 ? d - 86899 ? landsberg am lech tel: +49/8191/305395 ? fax: +49/8191/305397 info@petermann - technik.com ? www.petermann - technik.com premium quality by petermann - technik our company is certi fied according to is o 9001:2008 in october 2013 by the dmsz certi- fikation gmbh. this is for you to e nsure that the princip- les of quality management are fully im- plemented in our quality management system and quality control methods also dominate our quality standards. ? petermann - technik gmbh 2014. the information contained herein is subject to change at any time without notice. petermann - techn ik owns all rights, title and interest to the intellectual property related to petermann - technik's products, including any software, fir mware, copyright, pa- tent, or trademark. the sale of petermann - technik products does not convey or imply any license under patent or other rights. pe termann - technik retains the copyright and trademark rights in all documents, catalogs and plans supplied pursuant to or ancillary to the sale of products or services by petermann - technik. unless otherwise agreed to in writing by petermann - technik, any reproduction, modification, trans lation, com- pilation, or representation of this material shall be strictly prohibited.
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