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skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@sk yworksinc.com ? www.skyworksinc.com 101467e ? skyworks proprietary and confiden tial information ? produc ts and product information ar e subject to change witho ut notice ? october 11, 2004 1 data sheet CX65002: 700 C 1400 mhz linear power amplifier driver applications ? amps/cdma/tdma/gsm handsets ? wireless local loop (wll) and industrial, scientific, medical (ism) bands ? repeaters ? paging ? mobile radios ? telematics ? uhf tv broadcasts features ? 5 v single supply operation ? linear p out of 24 dbm ? oip3 of 46 dbm ? excellent cdma performance ? internal bias circuits ? 8-pin soic 5.994 x 4.928 mm package with downset paddle 1 2 3 4 8 7 6 5 c1215 nc vb rfin y vcc1 rfout rfout vcc2 figure 1. CX65002 pinout C 8-pin soic package (top view) description skyworks CX65002 power amplifier driver offers a desirable combination of features that provide superb performance and ease of use in a low-cost surface-mounted technology (smt) package. the gallium arsenide (gaas) heterojunction bipolar transistor (hbt) power amplifier driver was developed and optimized for extreme linear performance in a variety of applications. it is ideal as a driver or output stage for transceivers and repeaters in amps/cdma/td ma/gsm paging base stations, mobile radios, telematics, and many other applications. the 8-pin small outline integrated circuit (soic) device package and pinout are shown in figure 1. figure 2 shows a functional block diagram for the CX65002. signal pin assignments and functional pin descriptions are provided in table 1. driver bias input bias vcc1 8 5 2 36 7 4 y vcc2 vb rfin rfou t pa c1216 figure 2. CX65002 functional block diagram
data sheet ? CX65002 skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@sk yworksinc.com ? www.skyworksinc.com 2 october 11, 2004 ? skyworks proprietary a nd confidential information ? products and product information are subject to cha nge without notice ? 101467e table 1. CX65002 signal descriptions pin # name description pin # name description 1 nc no connection 5 vcc2 supply voltage 2 vb input bias for amplifier driver 6 rfout rf output 3 rfin rf input 7 rfout rf output 4 y output of internal bias circuit 8 vcc1 supply voltage table 2. CX65002 absolute maximum ratings parameter symbol min typical max units rf input power p in 10 dbm supply voltage (vcc1 and vcc2 pins) vcc 5.5 v supply current (i d + i bias ) i cc 240 ma power dissipation 1.3 w case operating temperature t c C40 +85 c storage temperature t st C55 +125 c junction temperature t j +150 c note: exposure to maximum rating conditions for extended periods may reduce device reliability. there is no damage to device with on ly one parameter set at the limit and all other parameters set at or below their nominal value. technical description the CX65002 is a single stage linear amplifier. the device can be externally matched for optimum gain and linearity using two to three passive components. these external components allow the amplifier to be set to a desired operating frequency. the CX65002 contains a bias circuit for optimum temperature tracking performance. an external resistor is used to set the bias current level. the value of this resistor can be selected to set the amplifier operational mode to class a, b, or ab. package and handling information since the device package is sensitive to moisture absorption, it is baked and vacuum packed before shipping. instructions on the shipping container label regarding exposure to moisture after the container seal is broken must be followed. otherwise, problems related to moisture absorption may occur when the part is subjected to high temperature during solder assembly. if the part is attached in a reflow oven, the temperature ramp rate should not exceed 5 c per second. maximum temperature should not exceed 225 c and the time spent at a temperature that exceeds 210 c should be limited to less than 10 seconds. if the part is manually attached, precaution should be taken to ensure that the part is not subjected to a temperature that exceeds 300 c for more than 10 seconds. care must be taken when attaching this product, whether it is done manually or in a production solder reflow environment. production quantities of this product are shipped in a standard tape and reel format. for packaging details, refer to the skyworks application note, tape and reel , document number 101568. electrical and mechanical specifications the absolute maximum ratings of the CX65002 are provided in table 2. the recommended operating conditions are specified in table 3 and electrical specifications are provided in table 4. typical performance characteristics of the CX65002 are shown in figures 3 through 12. figure 19 shows the package dimensions for the 8-pin soic and figure 20 provides the tape and reel dimensions. electrostatic discharge (esd) sensitivity the CX65002 is a static-sensitive electronic device. do not operate or store near strong electrostatic fields. take proper esd precautions.
data sheet ? CX65002 skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@sk yworksinc.com ? www.skyworksinc.com 101467e ? skyworks proprietary and confiden tial information ? produc ts and product information ar e subject to change witho ut notice ? october 11, 2004 3 table 3. CX65002 recommended operating conditions parameter symbol min typical max units supply voltage (vcc1 and vcc2 pins) vcc 5 v operating frequency f o 700 1400 mhz junction temperature t j 140 c maximum bias condition (vcc i d ) < (t j _ recommended C t c )/r th , j - c table 4. CX65002 electrical characteristics (vcc = 5 v, t c = 25 c) parameter symbol test condi tions min typical max units oip3 match, frequency = 900 mhz (note 1) quiescent current (l d + l bias ) iq r bias = 270 ? 120 130 ma small signal gain g p in = C15 dbm 16.5 18 db linear output power (note 2) p out p in = +7 dbm 22.5 24 dbm power added efficiency pae p in = +7 dbm 34 38 % noise figure (nf) nf 5 6 db output ip3 oip3 two cw tones with 1 mhz spacing, p in = C12 dbm per tone 40 44 dbm thermal resistance (junction C case) r th , j - c 65 c/w acpr match, frequency = 881.5 mhz (note 3) quiescent current (l d + l bias ) iq r bias = 270 ? 115 135 ma small signal gain g p in = C15 dbm 15.5 17 db peak envelope power (note 2) p pep is95 downlink cdma signal, 9 ch fwd, p in = 3 dbm 29 dbm average output power @ acpr = C45 dbc, 885 khz offset p out acpr is95 downlink cdma signal, 9 ch fwd, p in = 4.5 dbm 19.5 21.5 dbm note 1 : device matched for optimum oip3 acco rding to circuit shown in figure 15. note 2 : for reliable operation, do not violate the ma ximum input drive level specified in table 2. note 3 : device matched for optimum acpr acco rding to circuit shown in figure 16. 10 13 16 19 22 25 -6 -4 -2 0 2 4 6 8 pin (dbm) pout (dbm) -40c 25c 85c figure 3. typical p out vs p in @ 900 mhz over temperature (circuit match for optimum oip3) 0 10 20 30 40 50 -6 -4 -2 0 2 4 6 8 pin (dbm) pae (%) -40c 25c 85c figure 4. typical pae vs p in @ 900 mhz over temperature (circuit match for optimum oip3)
data sheet ? CX65002 skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@sk yworksinc.com ? www.skyworksinc.com 4 october 11, 2004 ? skyworks proprietary a nd confidential information ? products and product information are subject to cha nge without notice ? 101467e 17 18 19 20 21 700 730 760 790 820 850 freq (mhz) small signal gain (db) -40c 25c 85c figure 5. typical small signal gain from 700 to 850 mhz over temperature (circuit match for optimum gain) 13 14 15 16 17 18 1100 1175 1250 1325 1400 freq (mhz) small signal gain (db) -40c 25c 85c figure 7. typical small signal gain from 1.1 to 1.4 ghz over temperature (circuit match for optimum gain) 0 1 2 3 4 5 6 850 877.5 905 932.5 960 freq (mhz) nf (db) -40c 25c 85c figure 9. typical nf from 850 to 960 mhz over temperature (circuit match for optimum oip3) 14 15 16 17 18 19 850 877.5 905 932.5 960 freq (mhz) small signal gain (db) -40c 25c 85c figure 6. typical small signal gain from 850 to 960 mhz over temperature (circuit match for optimum oip3) 0 1 2 3 4 5 6 700 730 760 790 820 850 freq (mhz) nf (db) -40c 25c 85c figure 8. typical nf from 700 to 850 mhz over temperature (circuit match for optimum gain) 0 1 2 3 4 5 6 1100 1175 1250 1325 1400 freq (mhz) nf (db) -40c 25c 85c figure 10. typical nf from 1.1 to 1.4 ghz over temperature (circuit match for optimum gain)
data sheet ? CX65002 skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@sk yworksinc.com ? www.skyworksinc.com 101467e ? skyworks proprietary and confiden tial information ? produc ts and product information ar e subject to change witho ut notice ? october 11, 2004 5 30 35 40 45 50 55 850 877.5 905 932.5 960 freq (mhz) oip3 (dbm) -40c 25c 85c figure 11. typical oip3 vs frequency over temperature (circuit match for optimum oip3) -65 -60 -55 -50 -45 -40 10 12 14 16 18 20 22 24 pout (dbm) acpr (dbc) figure 12. typical acpr vs p out @ 881.5 mhz, 750 khz offset, 25 c (circuit match for optimum acpr) evaluation board description skyworks CX65002 evaluation board is used to test the performance of the CX65002 power amplifier driver. an evaluation board schematic diagram, optimized for the 3 rd order output intercept point (oip3), is shown in figure 13. a schematic diagram optimized for adjacent channel power rejection (acpr) is provided in figure 14. the evaluation board assembly diagram is shown in figure 15 and the evaluation board layer detail is shown in figure 16. the mounting footprint for the CX65002 is shown in figure 17. circuit design configurations the following design considerations are general in nature and must be followed regardless of final use or configuration. 1. paths to ground should be made as short as possible. 2. the ground pad of the CX65002 power amplifier has special electrical and thermal grounding requirements. this pad is the main thermal conduit for heat dissipation. since the circuit board acts as the heat sink, it must shunt as much heat as possible from the amplifier. as such, design the connection to the ground pad to dissipate the maximum wattage produced to the circuit board. multiple vias to the grounding layer are required. note : junction temperature (t j ) of the device increases with a poor connection to the slug and ground. this reduces the lifetime of the device. 3. external bypass capacitors are required on the vcc line and on pins 4, 5, and 8. 4. bias resistor r1 is used to control the reference voltage of the bias circuit (vcc1) at pin 8. 5. inductor l2 is placed between the bias circuit output (pin 4) and the base of the rf transistor (pin 2) for bias circuit and rf transistor connection. suggested matching circuits are shown in figures 13 and 14. testing procedure use the following procedure to set up the CX65002 evaluation board for testing. refer to figure 18 for guidance: 1. connect a 5.0 v supply to vcc. if available, enable the current limiting function of the power supply to 240 ma. 2. connect a signal generator to the rf signal input port. set it to the desired rf frequency at a power level of C15 dbm or less to the evaluation board but do not enable the rf signal. 3. connect a spectrum analyzer to the rf signal output port. 4. enable the power supply. 5. enable the rf signal. 6. take measurements. caution : if any of the input signals exceed the rated maximum values, the CX65002 evaluation board can be permanently damaged.
data sheet ? CX65002 skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@sk yworksinc.com ? www.skyworksinc.com 6 october 11, 2004 ? skyworks proprietary a nd confidential information ? products and product information are subject to cha nge without notice ? 101467e r1 270 ? r2 0 ? CX65002 c2 dni l1 6.8 nh c1 3.9 pf +5 v sma c1239 x 1 2 3 4 8 12 7 6 5 c4 20 pf l2 33 nh c6 39 pf dni -- do not install power supply l3 dni c10 20 pf t_line c5 39 pf c8 4.7 f c9 2.2 pf c7 39 pf sma figure 13. application schematic optimized for oip3 @ 900 mhz r1 270 ? r2 0 ? CX65002 c2 dni l1 5.6 nh l2 33 nh c1 4.7 pf c4 22 pf +5 v sma c1439 x 1 2 3 4 8 12 7 6 5 c6 39 pf l3 4.7 nh c10 4.7 pf dni -- do not install power supply t_line c7 39 pf c5 39 pf c8 4.7 f sma figure 14. application schematic optimized for acpr @ 881.5 mhz
data sheet ? CX65002 skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@sk yworksinc.com ? www.skyworksinc.com 101467e ? skyworks proprietary and confiden tial information ? produc ts and product information ar e subject to change witho ut notice ? october 11, 2004 7 c1434 j3 j2 (rf out) j1 (rf in) gnd gnd vcc gnd jp1 r1 c7 c5 c1 c2 c4 c6 c9 c10 l1 l2 l3 r2 c8 figure 15. evaluation board assembly diagram
data sheet ? CX65002 skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@sk yworksinc.com ? www.skyworksinc.com 8 october 11, 2004 ? skyworks proprietary a nd confidential information ? products and product information are subject to cha nge without notice ? 101467e c1440 layer 1: top metal layer 2: ground layer 3: inner traces layer 4: ground figure 16. evaluation board layer detail
data sheet ? CX65002 skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@sk yworksinc.com ? www.skyworksinc.com 101467e ? skyworks proprietary and confiden tial information ? produc ts and product information ar e subject to change witho ut notice ? october 11, 2004 9 c1218 6. 9 85 1.800 0.381 1.270 1.524 minimum 0.381 diameter plated-through via (minimum 20 recommended) dimensions are in millimeters 2.710 0.635 minimum figure 17. pcb mounting footprint c1240f signal generator power meter or spectrum analyzer CX65002 evaluation board power supply input output figure 18. CX65002 evaluation board testing configuration
data sheet ? CX65002 skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@sk yworksinc.com ? www.skyworksinc.com 10 october 11, 2004 ? skyworks proprietary a nd confidential information ? products and product information are subject to cha nge without notice ? 101467e top view side view detail a end view bottom view 3 5. 99 4 .178 2.464 .051 1.270 bsc 0.406 .076 1.524 .127 1.473 .076 0.051 .051 4. 9 28 .102 0.635 .254 0.254 4 o 4 o parting line gauge plane seating plane seating plane detail a 2. 9 21 .203 3. 9 37 .102 0.203 .038 0.330 .076 x 45 o 2.007 .203 1. 9 56 .051 21 c1444 all measurements are in millimeters figure 19. CX65002 8-pin soic package dimensions c1242 8.00 0.10 4.00 0.10 1.55 0.05 1.50 0.25 6.88 0.10 0.2 9 2 0.13 1.68 0.10 8 o max 5 o max 5.4 9 0.10 2.00 0.05 1.75 0.10 5.50 0.05 12.00 + 0.30/?0.10 ab a b b a 1. carrier tape: black conductive polycarbonate or polystyrene. 2. cover tape material: transparent conductive psa. 3. cover tape size: 9.3 mm wide. 4. all measurements are in millimeters. pin #1 indicator figure 20. CX65002 8-pin soic tape and reel dimensions
data sheet ? CX65002 skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@sk yworksinc.com ? www.skyworksinc.com 101467e ? skyworks proprietary and confiden tial information ? produc ts and product information ar e subject to change witho ut notice ? october 11, 2004 11 ordering information model name manufacturing part numb er evaluation kit part number CX65002 700-1400 mhz linear power amplifier driver cx 65002-12 tw10-d252 (tuned for optimum oip3 @ 900 mhz ) tw10-d253 (tuned for optimum acpr @ 881.5 mhz) copyright ? 2003, 2004, skyworks solutions, inc. all rights reserved. information in this document is provided in connection with skyw orks solutions, inc. (skywork s) products. these materials are provided by skyworks as a serv ice to its customers and may be used for informational purposes only by the customer. skyworks assumes no responsibilit y for errors or omissions in these mater ials. skyworks may make changes to its documentation, products, specifications and product descriptions at any time, without notice. skyworks makes no commitment to update the information and shall have no responsibilit y whatsoever for conflicts, incompatibilities, or other difficulties aris ing from future changes to its documentat ion, products, specif ications and product descriptions. no license, express or implied, by estoppel or otherwise, to an y intellectual property rights is granted by or under this docum ent. except as may be provided in skyworks terms and conditions of sale for such products, skyworks assumes no liability whatsoever in association with its documentation, products, specification s and product descriptions. these materials are provided as is without warranty of any ki nd, either express or implied or otherwise, relating to sale and /or use of skyworks products including warranties relating to fitness for a particular purpos e, merchantability, performance, quality or non-infringement of any patent, copyright or other intellectual property right. skyworks further does not warrant the accuracy or completeness of the information, text, graphics or other items contained within these materials. skyworks shall not be liable for any damages, in cluding special, indirect, inci dental, or consequential damage s, including without limitation, lost revenues or lost profits that may result from the use of these materials whether or not the recipien t of materials has been adv ised of the possibility of such damage. skyworks products are no t intended for use in medical, lifesaving or life-su staining applications. skyw orks customers using or selling skyworks products for use in such applications do so at their own risk and agree to fully indemnify skyworks for an y damages resulting from such improper use or sale. the following are trademarks of skyworks solutions, inc.: skyworks?, the skyw orks logo, and breakthro ugh simplicity?. product n ames or services listed in this publication are for identification purposes only, and may be trademarks of skyw orks or other third parties. third-party br ands and names are the property of their respective owners. addition al information, posted at www.skyworksinc.com, is incorporated by reference.

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