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f2915 datasheet high reliability sp5t rf switch 400 mhz to 8000 mh z f2915, rev o 12/14/2015 1 ? 2015 integrated device technology, inc. g eneral d escription the f2915 is a high reliability, low insertion loss , 50 sp5t absorptive rf switch designed for a multitude of rf applications including wireless communications. this device covers a broad frequency range from 400 mhz to 8000 mhz. in addition to providing low insertion loss, the f2915 also delivers excellent linearity and isolation performance while providing a 50 termination to the unused rf input ports. the f2915 also includes a patent pending constant impedance (k z ) feature. k z improves system hot switching ruggedness, minimizes lo pulling in vcos, and reduces phase and amplitude variations in distribution networks. it is also ideal for dynami c switching/selection between two or more amplifiers while avoiding damage to upstream /downstream sensitive devices such as pas and adcs. the f2915 uses a single positive supply voltage supporting three logic control pins using either 3. 3 v or 1.8 v control logic. connecting a negative voltage to pin 20 disables the internal negative voltage gener ator and becomes the negative supply. c ompetitive a dvantage the f2915 provides constant impedance in all rf por ts during transitions improving a systems hotswitchi ng ruggedness. the device also supports high power handling, and high isolation; particularly importan t for dpd receiver use. constant impedance k k | | z z | | during switching transition rfx to rfc isolation = 50 db* insertion loss = 1.1 db* iip3: +60.5 dbm* extended temperature: 40 c to +105 c * 4 ghz a pplications ? base station 2g, 3g, 4g ? portable wireless ? repeaters and e911 systems ? digital predistortion ? point to point infrastructure ? public safety infrastructure ? military systems, jtrs radios ? cable infrastructure ? test / ate equipment f eatures ? five symmetric, absorptive rf ports ? high isolation: 50 db @ 4000 mhz ? low insertion loss: 1.1 db @ 4000 mhz ? high linearity: o iip2 of 124 dbm @ 2000 mhz o iip3 of 60.5 dbm @ 4000 mhz ? high operating power handling: o 33 dbm cw on selected rf port o 27 dbm on terminated ports ? single 2.7 v to 5.5 v supply voltage ? external negative supply option ? 3.3 v and 1.8 v compatible control logic ? operating temperature 40 c to +105 c ? 4 mm x 4 mm 24 pin qfn package ? pin compatible with competitors f unctional b lock d iagram k | z | vssext rf5 control circuit rf4 rf2 rf1 v1 v2 v3 rfc 50 50 50 50 50 rf3 o rdering i nformation f2915nbgk8 green tape & reel rf p roduct line
f2915 high reliability sp5t rf switch 2 rev o 12/14/2015 a bsolute m aximum r atings parameter symbol min max units v dd to gnd v dd 0.3 +6.0 v v1, v2, v3 to gnd v cntl 0.3 minimum ( 3.6, v dd + 0.3) v rf1, rf2, rf3, rf4, rf5, rfc to gnd v rf 0.3 +0.3 v vss ext to gnd v ext 4.0 +0.3 v input power for any one selected rf through port. (v dd applied @ 2 ghz and t c = +85 c) p maxthru 37 dbm input power for any one selected rf terminated port .(v dd applied @ 2 ghz and t c = +85 c) p maxterm 30 dbm input power for rfc when in the all off state. (v dd applied @ 2 ghz and t c = +85 c) p maxcom 33 dbm continuous power dissipation (t c = 95 c max) 3 w maximum junction temperature t jmax +140 c storage temperature range t st 65 +150 c lead temperature (soldering, 10s) t lead +260 c esd voltageC hbm (per jesd22a114) v esdhbm class 1c (1000v) esd voltage C cdm (per jesd22c101) v esdcdm class iii (1000v) t c = temperature of the exposed paddle stresses above those listed above may cause permane nt damage to the device. functional operation of th e device at these or any other conditions above those indicated in the operational section of this specification i s not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. p ackage t hermal and m oisture c haracteristics ja (junction C ambient) 41 c/w jc (junction C case) [the case is defined as the expos ed paddle] 6.4 c/w moisture sensitivity rating (per jstd020) msl1
rev o 12/14/2015 f2915 r ecommended o perating c parameter symbol supply voltage (s) v dd pin 20 grounded pin 20 driven with vss vss ext negative supply operating temp range t case expos rf frequency range f rf rf continuous input cw power 2 p rf selected port terminated ports rf continuous input cw power for hot rf switching 2 p rfsw rfc as the input rf1 thru rf5 as the inputs rf1 5 port impedance z rfx rfc port impedance z rfc note 1: for normal operation, connect vss by applying vss ext to pin 20, the negative voltage generator is disabl ed completely eliminating any generator spurious responses. note 2: levels based on t c 85c. see figure 1 power de note 3: in any of the insertion loss modes or switching int o any insertion loss mode, any 3 of the 4 remaining terminated port paths may be each exposed to the maximum stated power le switching operation. figure 1 - maximum rf 3 high reliability sp5t rf c onditions conditions min typ pin 20 grounded 2.7 pin 20 driven with vss ext 2.7 negative supply 1 3.6 3.4 expos ed paddle temperature 40 400 selected port terminated ports 3 rfc as the input switch to rf1 thru rf5. switched into or out of all off state. rf1 thru rf5 as the inputs switched to rfc or into term 3 . switch into or out of all off condition. 50 50 for normal operation, connect vss ext = 0 v (pin 20) to gnd to enable the internal negative v oltage generator. to pin 20, the negative voltage generator is disabl ed completely eliminating any 85c. see figure 1 power de rating curve for higher case temperatures. in any of the insertion loss modes or switching int o any insertion loss mode, any 3 of the 4 remaining be each exposed to the maximum stated power le vel during continuous or hot maximum rf operating input power vs . rf frequency f2915 high reliability sp5t rf switch max units 5.5 v 5.5 3.2 +105 o c 8000 mhz 33 dbm 27 27 dbm 24 27 27 v (pin 20) to gnd to enable the internal negative v oltage generator. to pin 20, the negative voltage generator is disabl ed completely eliminating any rating curve for higher case temperatures. in any of the insertion loss modes or switching int o any insertion loss mode, any 3 of the 4 remaining vel during continuous or hot . rf frequency
f2915 high reliability sp5t rf switch 4 rev o 12/14/2015 f2915 s pecification typical application circuit, normal mode (v dd = 3.3 v, vss ext = 0 v) or bypass mode (v dd = 3.3 v, vss ext = 3.3 v), t c = +25 c, f rf = 2000 mhz, input power = 0 dbm, z s = z l = 50 , rfx = one of the five input ports, pcb boar d trace and connector losses are deembedded unless o therwise noted. parameter symbol conditions min typ max units logic input high threshold v ih 1.1 minimum ( 3.6, v dd ) v logic input low threshold v il -0.3 0.6 v logic current i ih, i il for each control pin -2 +2 a dc current (v dd ) i dd normal mode 3.3 v or 1.8v logic 290 360 a bypass mode 3.3 v or 1.8v logic 270 340 dc current (vss ext ) i vss vss ext = 3.3 v 46 -60 a insertion loss rfx to rfc il 900 mhz 0.93 1.4 1 db 2100 mhz 1.1 1.5 2700 mhz 1.2 1.6 2700 mhz C 4000 mhz 1.1 1.65 2 4000 mhz C 8000 mhz 2.3 isolation rfx to rfc isoc 400 mhz C 900 mhz 58 63 db 900 mhz C 2100 mhz 52 57 2100 mhz C 2700 mhz 50 55 2700 mhz C 4000 mhz 45 50 4000 mhz C 8000 mhz 31 45 isolation rfx to rfx isox 400 mhz C 900 mhz 54 64 db 900 mhz C 2100 mhz 49 57 2100 mhz C 2700 mhz 47 55 2700 mhz C 4000 mhz 45 52 4000 mhz C 8000 mhz 29 46 maximum rfx port vswr during switching vswr t from rfx active to rfx term 1.7:1 from rfx term to rfx active 2:1 minimum return loss (rfc port ) rfc rl 400 mhz C 4000 mhz 16 db minimum return loss (rfx port ) rfx rl 400 mhz C4000 mhz active 13 db terminated 15 input 0.1db compression 3 icp 0.1db 35 dbm input ip2 iip2 f rf1 = 2000 mhz, f rf2 = 2010 mhz rf input = rfx, p in = +20 dbm / tone f rf1 + f rf2 term 124 dbm input ip3 iip3 ? f = 1 mhz rf input = rfx p in = +20 dbm/tone f rf = 2000 mhz 60 dbm f rf = 4000 mhz 60.5 switching time 4 t sw bypass mode 50% ctrl to 90% rf 256 345 ns 50% ctrl to 10% rf 256 345 50% ctrl to rf settled within +/ 0.1 db of i.l. value. 285 maximum switching rate 5 sw rate pin 20 = gnd 25 khz pin 20 = vss ext applied 290 maximum spurious level on any rf port 6 spur max rf ports terminated into 50? rfx connected to rfc 120 dbm note 1 C items in min/max columns in bold italics are guaranteed by test. note 2 C items in min/max columns that are not bold /italics are guaranteed by design characterization. note 3 C the input 0.1db compression point is a lin earity figure of merit. refer to absolute maximum r atings section for the maximum rf input power and figure 1 for maximum operating rf input power. note 4 C f rf = 1ghz. note 5 C minimum time required between switching of states =1/ (maximum switching rate). note 6 C spurious due to onchip negative voltage g enerator. typical generator fundamental frequency i s 2.2 mhz.
f2915 rev o 12/14/2015 5 high reliability sp5t rf switch t able 1: s witch c ontrol t ruth t able mode v3 v2 v1 all off 0 0 0 rf1 on 0 0 1 rf2 on 0 1 0 rf3 on 0 1 1 rf4 on 1 0 0 rf5 on 1 0 1 all off 1 1 0 all off 1 1 1 t ypical o perating c onditions (toc) unless otherwise noted for the toc graphs on the fo llowing pages, the following conditions apply. ? v dd = 3.3 v. ? t case = +25 oc (t case = temperature of exposed paddle). ? f rf = 2000 mhz. ? rfx is the driven rf port and rfc is the output port. ? pin = 10 dbm for all small signal tests. ? pin = +15 dbm/tone applied to selected rfx port for two tone linearity tests. ? two tone frequency spacing = 5 mhz. ? z s = z l = 50 ohms. ? all unused rf ports terminated into 50 ohms. ? for insertion loss and isolation plots, rf trace and connector losses are de-embedded (see evkit board and connector loss plot). ? plots for isolation and insertion loss over temperatur e and voltage are for a typical path. for performance of a specific path, refer to the online s-p arameter file.
f2915 high reliability sp5t rf switch 6 rev o 12/14/2015 t ypical o perating c onditions (- 1 -) insertion loss vs. selected switch path insertion loss vs. voltage rfx rfc isolation vs. voltage insertion loss vs. temperature rfx rfc isolation vs. temperature rfx rfx isolation vs. temperature 3 2.5 2 1.5 1 0.5 0 0 1 2 3 4 5 6 7 8 insertion loss (db) frequency (ghz) rf1 rf2 rf3 rf4 rf5 3 2.5 2 1.5 1 0.5 0 0 1 2 3 4 5 6 7 8 insertion loss (db) frequency (ghz) 2.7v 3.3v 5.0v 5.5v 90 80 70 60 50 40 30 20 10 0 0 1 2 3 4 5 6 7 8 isolation (db) frequency (ghz) 2.7v 3.3v 5.0v 5.5v 3 2.5 2 1.5 1 0.5 0 0 1 2 3 4 5 6 7 8 insertion loss (db) frequency (ghz) 40c 25c 105c 90 80 70 60 50 40 30 20 10 0 0 1 2 3 4 5 6 7 8 isolation (db) frequency (ghz) 40c 25c 105c 110 100 90 80 70 60 50 40 30 20 10 0 0 1 2 3 4 5 6 7 8 isolation (db) frequency (ghz) 40c 25c 105c
f2915 rev o 12/14/2015 7 high reliability sp5t rf switch t ypical o perating c onditions (- 2 -) rfx rfx isolation vs. voltage rfx selected return loss vs. temperature rfc return loss vs. selected rfx port rfx return loss vs. selected rfx port rfx selected return loss vs. voltage rfc return loss with rfx selected vs. temperature 110 100 90 80 70 60 50 40 30 20 10 0 0 1 2 3 4 5 6 7 8 isolation (db) frequency (ghz) 2.7v 3.3v 5.0v 5.5v 40 30 20 10 0 0 1 2 3 4 5 6 7 8 return loss (db) frequency (ghz) 40c 25c 105c 40 30 20 10 0 0 1 2 3 4 5 6 7 8 return loss (db) frequency (ghz) rf1 rf2 rf3 rf4 rf5 40 30 20 10 0 0 1 2 3 4 5 6 7 8 return loss (db) frequency (ghz) rf1 rf2 rf3 rf4 rf5 40 30 20 10 0 0 1 2 3 4 5 6 7 8 return loss (db) frequency (ghz) 2.7v 3.3v 5.0v 5.5v 40 30 20 10 0 0 1 2 3 4 5 6 7 8 return loss (db) frequency (ghz) 40c 25c 105c
f2915 high reliability sp5t rf switch 8 rev o 12/14/2015 t ypical o perating c onditions (- 3 -) rfc return loss with rfx selected vs. voltage rfx terminated return loss vs. temperature return loss (during switching) vs. time rfx terminated return loss vs. rfx port rfx terminated return loss vs. voltage vswr (during switching) vs. time 40 30 20 10 0 0 1 2 3 4 5 6 7 8 return loss (db) frequency (ghz) 2.7v 3.3v 5.0v 5.5v 50 40 30 20 10 0 0 1 2 3 4 5 6 7 8 return loss (db) frequency (ghz) 40c 25c 105c 40 35 30 25 20 15 10 5 0 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 return loss time (sec) rfx term > rfx active rfx active > rfx term 50 40 30 20 10 0 0 1 2 3 4 5 6 7 8 return loss (db) frequency (ghz) rf1 rf2 rf3 rf4 rf5 50 40 30 20 10 0 0 1 2 3 4 5 6 7 8 return loss (db) frequency (ghz) 2.7v 3.3v 5.0v 5.5v 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 vswr time (sec) rfx term > rfx active rfx active > rfx term
f2915 rev o 12/14/2015 9 high reliability sp5t rf switch t ypical o perating c onditions (- 4 -) rfx switching time [rfx terminated to rfx active] rfx iip3 vs. selected rfx port evkit trace and connector loss vs. temperature rfx switching time [rfx active to rfx terminated] rfx iip3 vs. temperature and voltage 0.5 0.4 0.3 0.2 0.1 0 0.1 0.2 0.3 0.4 0.5 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 settling to il state (db) time (sec) 50% ctrl to insertion loss 0 10 20 30 40 50 60 70 0.5 1 1.5 2 2.5 3 3.5 4 iip3 (dbm) frequency (ghz) rf1 rf2 rf3 rf4 rf5 1.2 1 0.8 0.6 0.4 0.2 0 0 1 2 3 4 5 6 7 8 loss (db) frequency (ghz) 40c 25c 105c 70 60 50 40 30 20 10 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 settling to isolation (db) time (sec) 50% ctrl to isolation 0 10 20 30 40 50 60 70 0.5 1 1.5 2 2.5 3 3.5 4 iip3 (dbm) frequency (ghz) 40c, 2.7v 40c, 3.0v 40c, 3.3v 40c, 5.0v 40c, 5.5v 25c, 2.7v 25c, 3.0v 25c, 3.3v 25c, 5.0v 25c, 5.5v 105c, 2.7v 105c, 3v 105c, 3.3v 105c, 5v 105c, 5.5v
f2915 high reliability sp5t rf switch 10 rev o 12/14/2015 p ackage d rawing (4mm x 4mm 24pin qfn), nbg24 n ote : t he f2915 uses the p3 exposed paddle dimensions noted below
f2915 rev o 12/14/2015 11 high reliability sp5t rf switch l and p attern d imension land pattern to support 2.7 mm x 2.7 mm exposed paddle version (see version p3 of package drawing)
f2915 high reliability sp5t rf switch 12 rev o 12/14/2015 p in d iagram gnd vss e xt 1 4 3 2 5 gnd gnd gnd gnd gnd gnd vdd rf5 gnd control circuit e.p. 6 18 15 16 17 14 13 12 9 10 11 8 7 19 22 21 20 23 24 rf4 rf3 rf2 gnd rf1 gnd v1 v2 v3 gnd gnd gnd rfc 50 50 50 50 50 p in d escription pin name function 1, 3, 4, 6, 7, 9, 10, 12, 13, 15, 21, 23, 24 gnd ground these pins as close to the device as pos sible. 2 rf5 rf5 port. matched to 50 ohms. if this pin is not 0v dc, then an external coupling capacitor must be used. 5 rf4 rf4 port. matched to 50 ohms. if this pin is not 0v dc, then an external coupling capacitor must be used. 8 rf3 rf3 port. matched to 50 ohms. if this pin is not 0v dc, then an external coupling capacitor must be used. 11 rf2 rf2 port. matched to 50 ohms. if this pin is not 0v dc, then an external coupling capacitor must be used. 14 rf1 rf1 port. matched to 50 ohms. if this pin is not 0v dc, then an external coupling capacitor must be used. 16 vdd power supply. bypass to gnd with capacitors shown i n the typical application circuit as close as possible to pin. 17 v1 control pin to set switch state. see table 1 . 18 v2 control pin to set switch state. see table 1 . 19 v3 control pin to set switch state. see table 1 . 20 vss ext external vss negative voltage control. connect to g round to enable on chip negative voltage generator. to bypass and disable o n chip generator connect this pin to an external vss. 22 rfc rf common port. matched to 50 ohms when one of the 5 rf ports is selected. if this pin is not 0v dc, then an extern al coupling capacitor must be used. 25 ep exposed pad. internally connected to gnd. solder th is exposed pad to a pcb pad that uses multiple ground vias to provide h eat transfer out of the device into the pcb ground planes. these multiple g round vias are also required to achieve the specified rf performance.
f2915 rev o 12/14/2015 13 high reliability sp5t rf switch a pplications i nformation default start-up there are no internal pullup or pulldown resistor s on the control pins. logic control control pins v1, v2, and v3 are used to set the sta te of the sp5t switch (see table 1). external vss the f2915 is designed with an onchip negative volt age generator. this onchip generator is enabled b y connecting pin 20 of the device to ground. to disab le the onchip generator apply a negative voltage t o pin 20 (vssext) of the device within the range stated in t he recommended operating conditions table. power supplies a common vdd power supply should be used for all pi ns requiring dc power. all supply pins should be bypassed with external capacitors to minimize noise and fast transients. supply noise can degrade nois e figure and fast transients can trigger esd clamps and caus e them to fail. supply voltage change or transients should have a slew rate smaller than 1 v / 20 s. in addi tion, all control pins should remain at 0 v (+/0.3 v) while the supply voltage ramps or while it returns to zer o. control pin interface if control signal integrity is a concern and clean signals cannot be guaranteed due to overshoot, unde rshoot, ringing, etc., the following circuit at the input o f each control pin is recommended. this applies to control pins 17, 18, and 19 as shown below.
f2915 high reliability sp5t rf switch 14 rev o 12/14/2015 e v k it p ictures top view bottom view
f2915 rev o 12/14/2015 15 high reliability sp5t rf switch ev kit / a pplications c ircuit
f2915 high reliability sp5t rf switch 16 rev o 12/14/2015 evk it bom part reference qty description mfr. part # mfr. c1, c3, c5, c7, c8, c9 6 100 pf 5%, 50v, c0g ceramic capacitor (0402) grm 1555c1h101j murata c2 0 not installed (0603) c4 0 not installed (0603) c6 1 1000 pf 5%, 50v, c0g ceramic capacitor (0603) grm1885c1h102j mu rata r1, r2, r3 3 0 ? 1%, 1/10w, resistor (0402) erj 2ge0r00x panasonic r4, r5, r6 3 100 k ? 1%, 1/10w, resistor (0402) erj 2rkf1003 x panasonic r7 1 15 k ? 1%, 1/10w, resistor (0402) erj 2rkf1502x panasonic r8 1 22 k ? 1%, 1/10w, resistor (0402) erj 2 rkf22 02x panasonic j1 j8 8 edge launch sma (0.375 inch pitch ground tabs) 142 0701 851 emerson johnson j9 1 conn header vert dbl 10 x 2 pos gold 67997 120hlf fci u1 1 sp5t switch 4 mm x 4 mm qfn24 ep f2915nb g k idt 1 printed circuit board f29xx evkit rev 02.0 idt t op m arkings idtf2915 nbgk z1528uzl part number date code [yyww] (week 28 of 2015) asm test step assembler code
f2915 rev o 12/14/2015 17 high reliability sp5t rf switch ev kit o peration external supply setup set up a vdd power supply in the voltage range of 2 .7 v to 5.5 v and disable the power supply output. if using the onchip negative voltage generator ins tall a 2pin shunt to short pins 3 and 4 of j9. if an external negative voltage supply is to be use d set its voltage within the range of 3.6 v to 3.2 v and disable it. also, be sure there are no j umper connections on pins 3 and 4 of j9. logic control setup using the evkit to manually set the control logic: on connector j9 connect a 2pin shunt from pin 7 (v dd) to pin 8 (vdd_ctrl). this connection provides the vdd voltage supply to the eval board logic cont rol pull up network. on connector j9 connect a 2pin shunt from pin 9 (l vsel2) to pin 10 (lvsel). this connection enables r 7 (15 k?) and r8 (22 k?) to form a voltage divider to set the proper logic control levels to support the full voltage range of vdd. note that when using the onb oard r7 / r8 voltage divider the current draw from the vdd supply will be higher by approximately vdd / 37 k. connector j9 has 3 logic input pins: v1 (pin 20), v 2 (pin 18), and v3 (pin 16). see table 1 for logic truth table. with the pullup network enabled (as noted ab ove), when these pins are left open a logic high wi ll be provided through pull up resistors r4, r5, and r 6. to set a logic low to v1, v2, and v3 connect 2p in shunts from pin 16 to pin 15, pin 18 to pin 17 and pin 20 to pin 19 respectively. using external control logic: pins 6, 7, 8, 9, and 10 of j9 should have no connec tion. external logic controls can be applied to j9 pins 16 (v3), 18 (v2) and 20 (v1). see table 1 for logic truth table. turn-on procedure setup the supplies and eval board as noted in the external supply setup and logic control setup sections above. connect the preset disabled vdd power supply to pin 2 (vdd) and pin 1 (gnd) of j9. if the external negative voltage source is to be us ed, connect the disabled supply to pin 4 (vssext) a nd pin 3 (gnd) of j9. if using onchip negative supply be sure the 2pin shunt is installed connecting pi n 3 to pin 4. enable the vdd supply then enable the vssext supply (if used). set the desired logic setting using v1, v2, and v3 to achieve the desired table 1 setting. note that external control logic should not be applied withou t vdd being applied first. turn-off procedure if using external control logic v1, v2, v3 must be set to a logic low. disable any external vssext supply. disable the vdd supply.
f2915 high reliability sp5t rf switch 18 rev o 12/14/2015 r evision h istory s heet rev date page description of change o 2015dec11 initial release
f2915 rev o 12/14/2015 19 high reliability sp5t rf switch corporate headquarters 6024 silver creek valley road san jose, ca 95138 usa sales 1-800-345-7015 or 408-284-8200 fax: 408-284-2775 www.idt.com tech support http://www.idt.com/support/technical-support disclaimer integrated device technology, inc. (idt) reserves the right to modify the products and/or sp ecifications described herein at any time, without notice, at idts sole discretion. performance specifications and operating parameters of the described products are determined in an ind ependent state and are not guaranteed to perform th e same way when installed in customer products. the information contained herein is prov ided without representation or warranty of any kind , whether express or implied, including, but not li mited to, the suitability of idts products for any particular purpose, an implied warranty of merc hantability, or noninfringement of the intellectua l property rights of others. this document is pres ented only as a guide and does not convey any license under intellectual property rights of idt o r any third parties. idts products are not intended for use in applicat ions involving extreme environmental conditions or in life support systems or similar devices where th e failure or malfunction of an idt product can be reasonably expected to significantly affect the health or safety of users. anyone using an idt pro duct in such a manner does so at their own risk, ab sent an express, written agreement by idt. integrated device technology, idt and the idt logo are trademarks or registered trademarks of idt and its subsidiaries in the united states and other cou ntries. other trademarks used herein are the property of idt or their respective third party owners. copyright ?2015. integrated device technology, inc. all rights reserved.

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