skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@sk yworksinc.com ? www.skyworksinc.com 101472f ? skyworks proprietary and confiden tial information ? produc ts and product information ar e subject to change witho ut notice ? october 15, 2004 1 data sheet CX65101: 1700 C 2200 mhz linear power amplifier applications ? pcs/dcs/umts ? repeaters ? wll and ism bands ? mobile radio ? telematics features ? typical p out of 30 dbm ? high linearity ? low power consumption ? single +3.4 v supply ? lcc (8-pin, 8 x 8 mm) package description skyworks CX65101 power amplifier (pa) is a fully matched, 8-pin leadless chip carrier (lcc) surface mount module, developed for personal communications system (pcs), digital communications system (dcs), and universal mobile telephone system (umts) applications. wireless local loop (wll) and industrial, scientific, medical (ism) applications are also supported. this small, power-efficient pa has a full 1700 to 2200 mhz bandwidth coverage packed into a single compact package. all active circuitry in the module is contained in a single gallium arsenide (gaas) microwave monolithic integrated circuit (mmic). the CX65101 is manufactured with skyworks aluminum (al) gaas heterojunction bipolar transistor (hbt) process, which allows for single supply operation while maintaining high efficiency and good linearity. the 8-pin leadless chip carrier (lcc) device package and pinout are shown in figure 1. figure 2 shows a functional block diagram for the CX65101. signal pin assignments and functional pin descriptions are provided in table 1. 1 2 3 4 gnd rfin v ref gnd rfout gnd vcc1 v cc2 8 7 6 5 s384 figure 1. CX65101 pinoutC 8-pin lcc package (top view) driver stage bias input match pa pa rfin vcc1 vref mmic module 2 rfout 6 8 3 1, 5, 7 power stage bias interstage match output match c1220 vcc2 gnd 4 figure 2. CX65101 functional block diagram
data sheet ? CX65101 skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@sk yworksinc.com ? www.skyworksinc.com 2 october 15, 2004 ? skyworks proprietary a nd confidential information ? products and product information are subject to cha nge without notice ? 101472f table 1. CX65101 signal descriptions pin # name description pin # name description 1 gnd ground 5 gnd ground 2 rfin rf input 6 rfout rf output 3 vref reference voltage 7 gnd ground 4 vcc2 supply voltage 8 vcc1 supply voltage technical description the CX65101 is comprised of two amplifier stages. the matching circuits for the input stage, inter-stage, and output stage are contained within the device. the bias circuits for both input and output stages are included within the device for optimum temperature tracking performance. the CX65101 is internally matched for optimum linearity and efficiency. the input and output stages are independently supplied using the vcc1 and vcc2 supply lines, pins 8 and 4 respectively. the bias reference voltage is supplied using a common vref (pin 3) line. 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 CX65101 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 over temperature of the CX65101 are illustrated in figures 3 through 8. figure 13 shows the package dimensions for the 8-pin CX65101 lcc and figure 14 provides the tape and reel dimensions. electrostatic discharge (esd) sensitivity the CX65101 is a static-sensitive electronic device. do not operate or store near strong electrostatic fields. take proper esd precautions.
data sheet ? CX65101 skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@sk yworksinc.com ? www.skyworksinc.com 101472f ? skyworks proprietary and confiden tial information ? produc ts and product information ar e subject to change witho ut notice ? october 15, 2004 3 table 2. CX65101 absolute maximum ratings parameter symbol min typical max units rf input power p in 10 dbm supply voltage v cc 4.5 v reference voltage v ref 3.6 v case operating temperature t c C40 85 c storage temperature t st C55 125 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 values. table 3. CX65101 recommended operating conditions parameter symbol min typical max units supply voltage vcc 3.4 v reference voltage v ref 3.3 v operating frequency f o 1700 1900 2200 mhz table 4. CX65101 electrical characteristics (vcc = 3.4 v, v ref = 3.3 v, frequency = 1900 mhz, t c = 25 c, unless otherwise noted) parameter symbol test condi tions min typical max units analog inputs frequency range 1700 1900 2200 mhz quiescent current i q 125 150 ma small signal gain g p in = C15 dbm 21.0 23.0 db output power p out p in = 7 dbm 28.5 30.0 dbm efficiency pae p in = 7 dbm 29 35 % noise figure nf 4.5 6 db output ip3 oip3 two tones with 100 khz spacing, p in = 0 dbm per tone 37 39 dbm note : the above specifications apply only to the 1900 mhz operating frequency. 24 25 26 27 28 29 30 345678 pin (dbm) pout (dbm) -30c 25c 85c figure 3. typical p out vs p in over temperature 18 20 22 24 26 28 30 32 34 345678 pin (dbm) pae (%) -30c 25c 85c figure 4. typical pae vs p in over temperature
data sheet ? CX65101 skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@sk yworksinc.com ? www.skyworksinc.com 4 october 15, 2004 ? skyworks proprietary a nd confidential information ? products and product information are subject to cha nge without notice ? 101472f 0 5 10 15 20 25 30 1700 1800 1900 2000 2100 2200 freq (mhz) small signal gain (db) -30c 25c 85c figure 5. typical small signal gain vs frequency over temperature 0 10 20 30 40 50 1700 1800 1900 2000 2100 2200 freq (mhz) oip3 (dbm) -30c 25c 85c figure 7. typical oip3 vs frequency over temperature noise figure (db) 0 1 2 3 4 5 6 7 8 1700 1800 1900 2000 2100 2200 freq (mhz) -30c 25c 85c figure 6. typical noise figure vs frequency over temperature 0 5 10 15 20 25 30 35 1700 1800 1900 2000 2100 2200 freq (mhz) pout (dbm) -30c 25c 85c figure 8. typical p out vs frequency over temperature evaluation board description skyworks CX65101 evaluation board is used to test the performance of the CX65101 pa. the evaluation board schematic diagram is shown in figure 9. the schematic shows the basic design of the board for the 1700 to 2200 mhz range. figure 10 provides the evaluation board assembly diagram. figure 11 provides the evaluation board layer detail. circuit design considerations 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 CX65101 pa 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. 3. two external output bypass capacitors (0.01 f and 4.7 f) are required on the vcc1 (pin 8) supply input. the same two capacitors are also required on the vcc2 (pin 4) supply input. both capacitors should be placed in parallel between the supply line and ground. also, a bypass capacitor of 0.01 f is required on the vref input (pin 3). see figure 9 for a detailed diagram. 4. vcc1 (pin 8) and vcc2 (pin 4) may be connected together at the supply. 5. at the rf input (pin 2), a dc blocking capacitor is required. 6. the rf output includes an onboard internal dc blocking capacitor. all impedance matching is provided internally. therefore, the application only needs to provide a good 50 ? load. testing procedure use the following procedure to set up the CX65101 evaluation board for testing. refer to figure 12 for guidance:
data sheet ? CX65101 skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@sk yworksinc.com ? www.skyworksinc.com 101472f ? skyworks proprietary and confiden tial information ? produc ts and product information ar e subject to change witho ut notice ? october 15, 2004 5 1. connect a +3.4 v supply voltage to vcc1 and vcc2, and +3.3 v supply voltage to vref. if available, enable the current limiting function of the power supplies to 1.0 a for the +3.4 v supply current and 30 ma for the +3.3 v supply current. 2. connect a signal generator to the rf signal input port. set it to the desired rf frequency at a power level of 7 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 the input signal exceeds the rated power, the CX65101 evaluation board can be permanently damaged. rfin vref rf in rf ou t pin 9 package base +3.4 v +3.4 v c3 0.01 f c6 0.01 f c1 4.7 f c5 3.3 pf c2 0.01 f c4 4.7 f t2 50 ? microstrip t1 notes: 1) pin 9 provides both a thermal and electrical ground. this ground path is critical and must be as short as possible. 2) transmission line lengths t1 and t2 should be minimized. t3 50 ? microstrip 7 6 5 vcc1 rfout 1 2 3 4 8 vcc2 +3.3 v c1237b figure 9. evaluation board schematic, 1700 mhz to 2200 mhz j1 (rf in) j3 j2 (rf out) c1257a vcc 2 gnd vref gnd gnd vcc 1 c2 c1 c6 c4 8x8 pa evalua tion bd. c5 c3 figure 10. evaluation board assembly diagram
data sheet ? CX65101 skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@sk yworksinc.com ? www.skyworksinc.com 6 october 15, 2004 ? skyworks proprietary a nd confidential information ? products and product information are subject to cha nge without notice ? 101472f layer 2: inner traces layer 3: solid ground plane layer 1: top - metal c1253b figure 11. evaluation board layer detail
data sheet ? CX65101 skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@sk yworksinc.com ? www.skyworksinc.com 101472f ? skyworks proprietary and confiden tial information ? produc ts and product information ar e subject to change witho ut notice ? october 15, 2004 7 c1240b signal generator power meter or spectrum analyzer CX65101 evaluation board power supply input output figure 12. CX65101 evaluation board testing configuration solder mask bottom copper bottom r.20 (8x) 7.875 0.075 7.875 0.075 1.91 (2x) 1.91 (2x) 0.61 (12x) 0.81 (12x) r 2.5 4 the bottom solder mask thickness = 0.063 maximum all measurements are in millimeters 3.94 3.94 1.65 (2x) 3.99 3.99 3.30 (2x) 1.65 (2x) 3.30 (2x) 1.45 0.10 1.955 0.155 0.51 0.05 8.385 0.125 8.385 0.125 pin 1 pin 2 pin 3 pin 7 pin 8 pin 6 pin 5 pin 4 detail a see detail a note: pin 1 connects to ground pin 9 c1201 figure 13. CX65101 8-pin lcc package dimensions
data sheet ? CX65101 skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@sk yworksinc.com ? www.skyworksinc.com 8 october 15, 2004 ? skyworks proprietary a nd confidential information ? products and product information are subject to cha nge without notice ? 101472f a b a b b a 1.75 0.10 8 o max 5 o max ? 1.50 0.25 2.00 0.10 4.00 0.10 12.00 0.10 16.00 +0.30/-0.10 7.50 0.10 0.318 0.013 8.89 0.10 8.88 0.10 2.14 0.10 ? 1.50 0.10 pin #1 c1221 notes: 1. carrier tape: black conductive polystyrene. 2. cover tape material: transparent conductive psa. 3. all measurements are in millimeters. figure 14. CX65101 8-pin lcc tape and reel dimensions
data sheet ? CX65101 skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@sk yworksinc.com ? www.skyworksinc.com 101472f ? skyworks proprietary and confiden tial information ? produc ts and product information ar e subject to change witho ut notice ? october 15, 2004 9 ordering information model name manufacturing part numb er evaluation kit part number CX65101 1700-2200 mhz linear power amplifier CX65101-11 tw10-d812 copyright ? 2001, 2002, 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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