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idt8slvp1102anli revision a february 25, 2014 1 ?2014 integrated device technology, inc. datasheet low phase noise, 1-to-2, 3.3v, 2.5v lvpecl output fanout buffer IDT8SLVP1102I general description the IDT8SLVP1102I is a high-performance differential lvpecl fanout buffer. the device is designed for the fanout of high-frequency, very low additive phase-noise clock and data signals. the IDT8SLVP1102I is characterized to operate from a 3.3v or 2.5v power supply. guaranteed output-to-output and part-to-part skew characteristics make the IDT8SLVP1102I ideal for those clock distribution applications demanding well-defined performance and repeatability. one differential input and two low skew outputs are available. the integrated bias voltage reference enables easy interfacing of single-ended signals to the device input. the device is optimized for low power consumption and low additive phase noise. features ? two low skew, low additive jitter lvpecl output pairs ? differential pclk, npclk pair can accept the following differential input levels: lvds, lvpecl, cml ? maximum input clock frequency: 2ghz ? output skew: 5ps (typical) ? propagation delay: 250ps (maximum) ? low additive phase jitter, rms; f ref = 156.25mhz, v pp =1v, 12khz - 20mhz: 49fs (maximum) ? full 3.3v or 2.5v supply voltage ? maximum device current consumption (i ee ): 34ma (maximum) ? available in lead-free (rohs 6), 16-lead vfqfn package ? -40c to 85c ambient operating temperature ? differential pclka, npclka and pclkb, npclkb pairs can also accept single-ended lvcmos levels. see applications section wiring the differential input levels to accept single-ended levels (figure 1a and figure 1b) block diagram pin assignment IDT8SLVP1102I 16-lead vfqfn 3.0mm x 3.0mm x 0.925mm package body nl package top view pclk npclk v ref q0 nq0 q1 nq1 v cc voltage reference 5678 16 15 14 13 1 2 3 4 12 11 10 9 v ee nc nc nc nq1 q1 nq0 q0 v cc pclk npclk v ref nc nc nc v ee
idt8slvp1102anli revision a february 25, 2014 2 ?2014 integrated device technology, inc. IDT8SLVP1102I data sheet low phase noise, 1-to-2, 3.3v, 2.5v lvpecl output fanout buffer pin descriptions and characteristics table 1. pin descriptions note: pulldown and pullup refers to an internal input resistors. see table 2, pin characteristics, for typical values. table 2. pin characteristics number name type description 1, 16 v ee power negative supply pins. 2, 3, 4, 13, 14, 15 nc unused do not connect. 5v cc power power supply pin. 6 pclk input pulldown non-inverting differential lvpecl clock/data input. 7 npclk input pullup/ pulldown/ inverting differential lvpecl clock/data input. v cc /2 default when left floating. 8v ref output bias voltage reference for the pclk input. 9, 10 q0, nq0 output differential output pair 0. lvpecl interface levels. 11, 12 q1, nq1 output differential output pair 1. lvpecl interface levels. symbol parameter test conditions minimum typical maximum units c in input capacitance 2 pf r pulldown input pulldown resistor 51 k ? r pullup input pullup resistor 51 k ?
idt8slvp1102anli revision a february 25, 2014 3 ?2014 integrated device technology, inc. IDT8SLVP1102I data sheet low phase noise, 1-to-2, 3.3v, 2.5v lvpecl output fanout buffer absolute maximum ratings note: stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. these ratings are stress specifications only. functional operation of product at these conditions or any conditions beyond those listed in the dc characteristics or ac characteristics is not implied. exposure to absolute maximum rating conditions for extended periods may affect product reliability. note 1: according to jedec/jesd 22-a114/22-c101. dc electrical characteristics table 3a. power supply dc characteristics, v cc = 3.3v 5%, v ee = 0v, t a = -40c to 85c table 3b. power supply dc characteristics, v cc = 2.5v 5%, v ee = 0v, t a = -40c to 85c item rating supply voltage, v cc 3.63v inputs, v i -0.5v to v cc + 0.5v outputs, i o (lvpecl) continuous current surge current 50ma 100ma input sink/source, i ref 2ma maximum junction temperature, t j,max 125c storage temperature, t stg -65 ? cto150 ? c esd - human body model, note 1 2000v esd - charged device model, note 1 1500v symbol parameter test conditions minimum typical maximum units v cc power supply voltage 3.135 3.3v 3.465 v i ee power supply current 34 ma i cc power supply current q0 and q1 terminated 50 ? to v cc ?2v 106 ma symbol parameter test conditions minimum typical maximum units v cc power supply voltage 2.375 2.5v 2.625 v i ee power supply current 31 ma i cc power supply current q0 and q1 terminated 50 ? to v cc ?2v 103 ma
idt8slvp1102anli revision a february 25, 2014 4 ?2014 integrated device technology, inc. IDT8SLVP1102I data sheet low phase noise, 1-to-2, 3.3v, 2.5v lvpecl output fanout buffer table 3c. lvpecl dc characteristics, v cc = 3.3v 5%, v ee = 0v, t a = -40c to 85c note 1: outputs terminated with 50 ? to v cc ?2v. table 3d. lvpecl dc characteristics, v cc = 2.5v 5%, v ee = 0v, t a = -40c to 85c note 1: outputs terminated with 50 ? to v cc ?2v. symbol parameter test conditions minimum typical maximum units i ih input high current pclk, npclk v cc =v in = 3.465v 150 a i il input low current pclk v cc = 3.465v, v in = 0v -10 a npclk v cc = 3.465v, v in = 0v -150 a v ref reference voltage for input bias i ref = 1ma v cc ? 1.6 v cc ? 1.3 v cc ? 1.1 v v oh output high voltage; note 1 v cc ? 1.1 v cc ? 0.9 v cc ? 0.7 v v ol output low voltage; note 1 v cc ? 2.0 v cc ? 1.65 v cc ? 1.5 v symbol parameter test conditions minimum typical maximum units i ih input high current pclk, npclk v cc =v in = 2.625v 150 a i il input low current pclk v cc = 2.625v, v in = 0v -10 a npclk v cc = 2.625v, v in = 0v -150 a v ref reference voltage for input bias i ref = 1ma v cc ? 1.6 v cc ? 1.3 v cc ? 1.1 v v oh output high voltage; note 1 v cc ? 1.1 v cc ? 0.9 v cc ? 0.7 v v ol output low voltage; note 1 v cc ? 2.0 v cc ? 1.6 v cc ? 1.5 v
idt8slvp1102anli revision a february 25, 2014 5 ?2014 integrated device technology, inc. IDT8SLVP1102I data sheet low phase noise, 1-to-2, 3.3v, 2.5v lvpecl output fanout buffer ac electrical characteristics table 4. ac electrical characteristics, v cc = 3.3v 5% or 2.5v 5%, v ee = 0v, t a = -40c to 85c note: electrical parameters are guaranteed over the specified ambient operating temperature range, which is established when the device is mounted in a test socket with maintained transverse airflow greater than 500 lfpm. the device will meet specifications after thermal equilibrium has been reached under these conditions. note 1: measured from the differential input crossing point to the differential output crosspoint. note 2: defined as skew between outputs at the same supply voltage and with equal load conditions. measured at the differential crosspoints. note 3: this parameter is defined in accordance with jedec standard 65. note 4: defined as skew between outputs on different devices operating at the same supply voltage, same frequency, same temperature and with equal load conditions. using the same type of inputs on each device, the outputs are measured at the differential crosspoints. note 5: v il should not be less than -0.3v. v ih should not be higher than v cc . note 6: common mode input voltage is defined as the crosspoint. note 7: for single-ended lvcmos input applications, please refer to the applications information, wiring the differential input to accept single-ended levels, figures 1a and 1b. symbol parameter test conditions minimum typical maximum units f ref input frequency pclk, npclk 2 ghz ? v/ ? t input edge rate pclk, npclk 1.5 v/ns t pd propagation delay; note 1 pclk, npclk to any qx, nqx for v pp = 0.1v or 0.3v 70 140 250 ps t sk(o) output skew; note 2, 3 515ps t sk(p) output pulse skew f ref = 100mhz 6 10 ps t sk(pp) part-to-part skew; note 3, 4 80 230 ps t jit buffer additive phase jitter, rms; refer to additive phase jitter section f ref = 122.88mhz sine wave, v pp =1v, integration range: 1khz ? 40mhz 157 fs f ref = 122.88mhz sine wave, v pp =1v, integration range: 10khz ? 20mhz 92 fs f ref = 122.88mhz sine wave, v pp =1v, integration range: 12khz ? 20mhz 91 fs f ref = 156.25mhz square wave, v pp =1v, integration range: 1khz ? 40mhz 38 51 fs f ref = 156.25mhz square wave, v pp =1v, integration range: 10khz ? 20mhz 36 49 fs f ref = 156.25mhz square wave, v pp =1v, integration range: 12khz ? 20mhz 36 49 fs f ref = 156.25mhz square wave, v pp = 0.5v, integration range: 1khz ? 40mhz 60 77 fs f ref = 156.25mhz square wave, v pp = 0.5v, integration range: 10khz ? 20mhz 49 63 fs f ref = 156.25mhz square wave, v pp = 0.5v, integration range: 12khz ? 20mhz 49 63 fs t r /t f output rise/ fall time 20% to 80% 35 110 180 ps v pp peak-to-peak input voltage; note 5, 7 f ref < 1.5ghz 0.1 1.5 v f ref > 1.5ghz 0.2 1.5 v v cmr common mode input voltage; note 5, 6, 7 1.0 v cc ? 0.6 v v o (pp) output voltage swing, peak-to-peak v cc = 3.3v, f ref ?? 2ghz 0.45 0.75 1.0 v v cc = 2.5v, f ref ?? 2ghz 0.4 0.65 1.0 v v diff_out differential output voltage swing, peak-to-peak v cc = 3.3v, f ref ?? 2ghz 0.9 1.5 2.0 v v cc = 2.5v, f ref ?? 2ghz 0.8 1.3 2.0 v
idt8slvp1102anli revision a february 25, 2014 6 ?2014 integrated device technology, inc. IDT8SLVP1102I data sheet low phase noise, 1-to-2, 3.3v, 2.5v lvpecl output fanout buffer additive phase jitter the spectral purity in a band at a specific offset from the fundamental compared to the power of the fundamental is called the dbc phase noise. this value is normally expressed using a phase noise plot and is most often the specified plot in many applications. phase noise is defined as the ratio of the noise power present in a 1hz band at a specified offset from the fundamental frequency to the power value of the fundamental. this ratio is expressed in decibels (dbm) or a ratio of the power in the 1hz band to the power in the fundamental. when the required offset is specified, the phase noise is called a dbc value, which simply means dbm at a specified offset from the fundamental. by investigating jitter in the frequency domain, we get a better understanding of its effects on the desired application over the entire time record of the signal. it is mathematically possible to calculate an expected bit error rate given a phase noise plot. as with most timing specifications, phase noise measurements have issues relating to the limitations of the equipment. often the noise floor of the equipment is higher than the noise floor of the device. this is illustrated above. the device meets the noise floor of what is shown, but can actually be lower. the phase noise is dependent on the input source and measurement equipment. measured using a wenzel 156.25mhz oscillator as the input source. offset from carrier frequency (hz) ssb phase noise dbc/hz
idt8slvp1102anli revision a february 25, 2014 7 ?2014 integrated device technology, inc. IDT8SLVP1102I data sheet low phase noise, 1-to-2, 3.3v, 2.5v lvpecl output fanout buffer parameter measurement information 3.3v lvpecl output load ac test circuit differential input level part-to-part skew 2.5v lvpecl output load ac test circuit output skew pulse skew scope qx nqx v ee v cc 2v -1.3v 0.165v v cmr cross points v pp v cc v ee npclk pclk t sk(pp) part 1 part 2 qx nqx qy nqy scope qx nqx v ee v cc 2v -0.5v 0.125v qx nqx qy nqy t plh t phl tsk(p)= t phl -t plh pclk npclk qy nqy
idt8slvp1102anli revision a february 25, 2014 8 ?2014 integrated device technology, inc. IDT8SLVP1102I data sheet low phase noise, 1-to-2, 3.3v, 2.5v lvpecl output fanout buffer parameter measurement information, continued propagation delay output rise/fall time t pd nq0, nq1 q0, q1 npclk pclk nq0, nq1 q0, q1
idt8slvp1102anli revision a february 25, 2014 9 ?2014 integrated device technology, inc. IDT8SLVP1102I data sheet low phase noise, 1-to-2, 3.3v, 2.5v lvpecl output fanout buffer applications information wiring the differential input to accept single-ended levels the IDT8SLVP1102I inputs can be interfaced to lvpecl, lvds, cml or lvcmos drivers. figure 1a illustrates how to dc couple a single lvcmos input to the IDT8SLVP1102I. the value of the series resistance rs is calculated as the difference between the transmission line impedance and the driver output impedance. this resistor should be placed close to the lvcmos driver. to avoid cross-coupling of single-ended lvcmos signals, apply the lvcmos signals to no more than one pclk input. a practical method to implement vth is shown in figure 1b below. the reference voltage vth = v1 = v cc /2, is generated by the bias resistors r1 and r2. the bypass capacitor (c1) is used to help filter noise on the dc bias. this bias circuit should be located as close to the input pin as possible. the ratio of r1 and r2 might need to be adjusted to position the v1 in the center of the input voltage swing. for example, if the input clock swing is 2.5v and v cc = 3.3v, r1 and r2 value should be adjusted to set v1 at 1.25v. the values below apply when both the single-ended swing and v cc are at the same voltage. figure 1a. dc-coupling a single lvcmos input to the IDT8SLVP1102I when using single-ended signaling, the noise rejection benefits of differential signaling are reduced. even though the differential input can handle full rail lvcmos signaling, it is recommended that the amplitude be reduced, particularly if both input references are lvcmos to minimize cross talk. the datasheet specifies a lower differential amplitude, however this only applies to differential signals. for single-ended applications, the swing can be larger, however v il cannot be less than -0.3v and v ih cannot be more than v cc + 0.3v. figure 1b shows a way to attenuate the pclk input level by a factor of two as well as matching the transmission line between the lvcmos driver and the IDT8SLVP1102I at both the source and the load. this configuration requires that the sum of the output impedance of the driver (ro) and the series resistance (rs) equals the transmission line impedance. r3 and r4 in parallel should equal the transmission line impedance; for most 50 ? applications, r3 and r4 will be 100 ? . the values of the resistors can be increased to reduce the loading for slower and weaker lvcmos driver. though some of the recommended components of figure 1b might not be used, the pads should be placed in the layout so that they can be utilized for debugging purposes. the datasheet specifications are characterized and guaranteed by using a differential signal. figure 1b. alternative dc coupling a single lvcmos input to the IDT8SLVP1102I
idt8slvp1102anli revision a february 25, 2014 10 ?2014 integrated device technology, inc. IDT8SLVP1102I data sheet low phase noise, 1-to-2, 3.3v, 2.5v lvpecl output fanout buffer recommendations for unused output pins outputs: lvpecl outputs all unused lvpecl outputs can be left floating. we recommend that there is no trace attached. both sides of the differential output pair should either be left floating or terminated.
idt8slvp1102anli revision a february 25, 2014 11 ?2014 integrated device technology, inc. IDT8SLVP1102I data sheet low phase noise, 1-to-2, 3.3v, 2.5v lvpecl output fanout buffer 3.3v lvpecl clock input interface the pclk /npclk accepts lvpecl, lvds, cml and other differential signals. both signals must meet the v pp and v cmr input requirements. figures 2a to 2e show interface examples for the pclk/ npclk input driven by the most common driver types. the input interfaces suggested here are examples only. if the driver is from another vendor, use their termination recommendation. please consult with the vendor of the driver component to confirm the driver termination requirements. figure 2a. pclk/npclk input driven by a cml driver figure 2c. pclk/npclk input driven by a 3.3v lvpecl driver figure 2e. pclk/npclk input driven by a 3.3v lvds driver figure 2b. pclk/npclk input driven by a built-in pullup cml driver figure 2d. pclk/npclk input driven by a 3.3v lvpecl driver with ac couple p c l k np c l k lvpe c l in p u t c m l 3 . 3v 3 . 3v 3 . 3 v r3 125 r4 125 r1 84 r2 84 3.3v o= 50 o= 50 pclk npclk 3.3v 3.3v lvpecl lvpecl input 3 . 3v r1 1 00 ? ? ? pclk npclk 3.3v lvpecl input 3.3v o=50 o=50 r1 100 cml built-in pullup
idt8slvp1102anli revision a february 25, 2014 12 ?2014 integrated device technology, inc. IDT8SLVP1102I data sheet low phase noise, 1-to-2, 3.3v, 2.5v lvpecl output fanout buffer 2.5v lvpecl clock input interface the pclk /npclk accepts lvpecl, lvds, cml and other differential signals. both signals must meet the v pp and v cmr input requirements. figures 3a to 3e show interface examples for the pclk/ npclk input driven by the most common driver types. the input interfaces suggested here are examples only. if the driver is from another vendor, use their termination recommendation. please consult with the vendor of the driver component to confirm the driver termination requirements. figure 3a. pclk/npclk input driven by a cml driver figure 3c. pclk/npclk input driven by a 2.5v lvpecl driver figure 3e. pclk/npclk input driven by a 2.5v lvds driver figure 3b. pclk/npclk input driven by a built-in pullup cml driver figure 3d. pclk/npclk input driven by a 2.5v lvpecl driver with ac couple p c l k np c l k lvpe c l in p u t c m l 2. 5v 2. 5v 2. 5 v 2. 5v p c l k np c l k 2. 5v 2. 5v lvpe cl lvpe c l in p u t p c l k np c l k p c l k np c l k 2. 5v lvpe c l in p u t 2. 5v cml built-in pullu p
idt8slvp1102anli revision a february 25, 2014 13 ?2014 integrated device technology, inc. IDT8SLVP1102I data sheet low phase noise, 1-to-2, 3.3v, 2.5v lvpecl output fanout buffer vfqfn epad thermal release path in order to maximize both the removal of heat from the package and the electrical performance, a land pattern must be incorporated on the printed circuit board (pcb) within the footprint of the package corresponding to the exposed metal pad or exposed heat slug on the package, as shown in figure 4. the solderable area on the pcb, as defined by the solder mask, should be at least the same size/shape as the exposed pad/slug area on the package to maximize the thermal/electrical performance. sufficient clearance should be designed on the pcb between the outer edges of the land pattern and the inner edges of pad pattern for the leads to avoid any shorts. while the land pattern on the pcb provides a means of heat transfer and electrical grounding from the package to the board through a solder joint, thermal vias are necessary to effectively conduct from the surface of the pcb to the ground plane(s). the land pattern must be connected to ground through these vias. the vias act as ?heat pipes?. the number of vias (i.e. ?heat pipes?) are application specific and dependent upon the package power dissipation as well as electrical conductivity requirements. thus, thermal and electrical analysis and/or testing are recommended to determine the minimum number needed. maximum thermal and electrical performance is achieved when an array of vias is incorporated in the land pattern. it is recommended to use as many vias connected to ground as possible. it is also recommended that the via diameter should be 12 to 13mils (0.30 to 0.33mm) with 1oz copper via barrel plating. this is desirable to avoid any solder wicking inside the via during the soldering process which may result in voids in solder between the exposed pad/slug and the thermal land. precautions should be taken to eliminate any solder voids between the exposed heat slug and the land pattern. note: these recommendations are to be used as a guideline only. for further information, please refer to the application note on the surface mount assembly of amkor?s thermally/ electrically enhance leadframe base package, amkor technology. figure 4. p.c. assembly for exposed pad thermal release path ? side view (drawing not to scale) solder solder pin pin exposed heat slug pin pad pin pad ground plane land pattern (ground pad) thermal via
idt8slvp1102anli revision a february 25, 2014 14 ?2014 integrated device technology, inc. IDT8SLVP1102I data sheet low phase noise, 1-to-2, 3.3v, 2.5v lvpecl output fanout buffer termination for 3.3v lvpecl outputs the clock layout topology shown below is a typical termination for lvpecl outputs. the two different layouts mentioned are recommended only as guidelines. the differential outputs are a low impedance follower output that generate ecl/lvpecl compatible outputs. therefore, terminating resistors (dc current path to ground) or current sources must be used for functionality. these outputs are designed to drive 50 ? transmission lines. matched impedance techniques should be used to maximize operating frequency and minimize signal distortion. figures 5a and 5b show two different layouts which are recommended only as guidelines. other suitable clock layouts may exist and it would be recommended that the board designers simulate to guarantee compatibility across all printed circuit and clock component process variations. figure 5a. 3.3v lvpecl output termination figure 5b. 3.3v lvpecl output termination r1 84 ? r2 84 ? 3.3v r3 125 ? r4 125 ? o =50 ? o =50 ? lvpecl input 3.3v 3.3v + _
idt8slvp1102anli revision a february 25, 2014 15 ?2014 integrated device technology, inc. IDT8SLVP1102I data sheet low phase noise, 1-to-2, 3.3v, 2.5v lvpecl output fanout buffer termination for 2.5v lvpecl outputs figure 6a and figure 6b show examples of termination for 2.5v lvpecl driver. these terminations are equivalent to terminating 50 ? to v cc ?2v.forv cc = 2.5v, the v cc ? 2v is very close to ground level. the r3 in figure 6b can be eliminated and the termination is shown in figure 6c. figure 6a. 2.5v lvpecl driver termination example figure 6c. 2.5v lvpecl driver termination example figure 6b. 2.5v lvpecl driver termination example 2.5v lvpecl driver v cc = 2.5v 2.5v 2.5v 50 50 r1 250 r3 250 r2 62.5 r4 62.5 + ? 2.5v lvpecl driver v cc = 2.5v 2.5v 50 50 r1 50 r2 50 + ? 2.5v lvpecl driver v cc = 2.5v 2.5v 50 50 r1 50 r2 50 r3 18 + ?
idt8slvp1102anli revision a february 25, 2014 16 ?2014 integrated device technology, inc. IDT8SLVP1102I data sheet low phase noise, 1-to-2, 3.3v, 2.5v lvpecl output fanout buffer power considerations this section provides information on power dissipation and junction temperature for the IDT8SLVP1102I. equations and example calculations are also provided. 1. power dissipation. the total power dissipation for the IDT8SLVP1102I is the sum of the core power plus the power dissipated in the load(s). the following is the power dissipation for v cc = 3.465v, which gives worst case results. note: please refer to section 3 for details on calculating power dissipated in the load. ? power (core) max =v cc_max *i ee_max = 3.465v * 34ma = 117.81mw ? power (outputs) max = 33.2mw/loaded output pair if all outputs are loaded, the total power i s 2 * 33.2mw = 66.4mw total power_ max (3.465v, with all outputs switching) = 117.81mw + 66.4mw = 184.21mw 2. junction temperature. junction temperature, tj, is the temperature at the junction of the bond wire and bond pad directly affects the reliability of the device. the maximum recommended junction temperature is 125c. limiting the internal transistor junction temperature, tj, to 125c ensures that the bond wire and bond pad temperature remains below 125c. the equation for tj is as follows: tj = ? ja * pd_total + t a tj = junction temperature ? ja = junction-to-ambient thermal resistance pd_total = total device power dissipation (example calculation is in section 1 above) t a = ambient temperature in order to calculate junction temperature, the appropriate junction-to-ambient thermal resistance ? ja must be used. assuming no air flow and a multi-layer board, the appropriate value is 74.7c/w per table 5 below. therefore, tj for an ambient temperature of 85c with all outputs switching is: 85c + 0.184w * 74.7c/w = 98.7c. this is below the limit of 125c. this calculation is only an example. tj will obviously vary depending on the number of loaded outputs, supply voltage, air flow and the type of board (multi-layer). table 5. thermal resistance ? ja for 16-lead vfqfn, forced convection ? ja by velocity meters per second 0 1 2.5 multi-layer pcb, jedec standard test boards 74.7c/w 65.3c/w 58.5c/w
idt8slvp1102anli revision a february 25, 2014 17 ?2014 integrated device technology, inc. IDT8SLVP1102I data sheet low phase noise, 1-to-2, 3.3v, 2.5v lvpecl output fanout buffer 3. calculations and equations. the purpose of this section is to calculate the power dissipation for the lvpecl output pair. lvpecl output driver circuit and termination are shown in figure 7. figure 7. lvpecl driver circuit and termination to calculate power dissipation into the load, use the following equations which assume a 50 ? load, and a termination voltage of v cc ?2v. these are typical calculations. ? for logic high, v out =v oh_max = v cc_max ? 0.7v (v cc_max ?v oh_max )= 0.7v ? for logic low, v out =v ol_max = v cc_max ? 1.5v (v cc_max ?v ol_max )= 1.5v pd_h is power dissipation when the output drives high. pd_l is the power dissipation when the output drives low. pd_h = [(v oh_max ?(v cc_max ? 2v))/r l ]*(v cc_max ?v oh_max )=[(2v?(v cc_max ?v oh_max ))/r l ]*(v cc_max ?v oh_max )= [(2v ? 0.7v)/50 ? ] * 0.7v = 18.2mw pd_l = [(v ol_max ?(v cc_max ? 2v))/r l ]*(v cc_max ?v ol_max )=[(2v?(v cc_max ?v ol_max ))/r l ]*(v cc_max ?v ol_max )= [(2v ? 1.5v)/50 ? ] * 1.5v = 15mw total power dissipation per output pair = pd_h + pd_l = 33.2mw v out v cc v cc - 2v q1 rl
idt8slvp1102anli revision a february 25, 2014 18 ?2014 integrated device technology, inc. IDT8SLVP1102I data sheet low phase noise, 1-to-2, 3.3v, 2.5v lvpecl output fanout buffer reliability information table 6. ? ja vs. air flow table for a 16-lead vfqfn transistor count the transistor count for the IDT8SLVP1102I is: 204 ? ja at 0 air flow meters per second 0 1 2.5 multi-layer pcb, jedec standard test boards 74.7c/w 65.3c/w 58.5c/w
idt8slvp1102anli revision a february 25, 2014 19 ?2014 integrated device technology, inc. IDT8SLVP1102I data sheet low phase noise, 1-to-2, 3.3v, 2.5v lvpecl output fanout buffer 16-lead vfqfn package outline and package dimensions
idt8slvp1102anli revision a february 25, 2014 20 ?2014 integrated device technology, inc. IDT8SLVP1102I data sheet low phase noise, 1-to-2, 3.3v, 2.5v lvpecl output fanout buffer ordering information table 7. ordering information note: parts that are ordered with an ?g? suffix to the part number are the pb-free configuration and are rohs compliant. table 8. pin 1 orientation in tape and reel packaging part/order number marking package shipping packaging temperature 8slvp1102anlgi 102ai ?lead-free? 16-lead vfqfn tube -40 ? cto85 ? c 8slvp1102anlgi8 102ai ?lead-free? 16-lead vfqfn tape & reel, pin 1 orientation: eia-481-c -40 ? cto85 ? c 8slvp1102anlgi/w 102ai ?lead-free? 16-lead vfqfn tape & reel, pin 1 orientation: eia-481-d -40 ? cto85 ? c part number suffix pin 1 orientation illustration 8 quadrant 1 (eia-481-c) /w quadrant 2 (eia-481-d)
idt8slvp1102anli revision a february 25, 2014 21 ?2014 integrated device technology, inc. IDT8SLVP1102I data sheet low phase noise, 1-to-2, 3.3v, 2.5v lvpecl output fanout buffer revision history sheet rev table page description of change date a t7, t8 19 ordering information table - added additional row. added orientation packaging table. 8/02/2012 a t4a 1 5 10 1 added features bullet: differential pclka, npclka and pclkb, npclkb pairs can also accept single-ended lvcmos levels. added note 7 to v pp ,v cmr. updated the ?wiring the differential input to accept single-ended levels? note. changed datasheet title to low phase noise, 1-to-2, 3.3v, 2.5v lvpecl output fanout buffer 2/1/2013 at4 5 changed note 5 to read: v il should not be less than -0.3v. v ih should not be higher than v cc . 1/23/2014 at720 ordering information: changed tray to tube. 2/25/2014
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