features 1 of 7 optimum technology matching? applied gaas hbt ingap hbt gaas mesfet sige bicmos si bicmos sige hbt gaas phemt si cmos si bjt gan hemt rf micro devices?, rfmd?, optimum technology matching?, enabling wireless connectivity?, powerstar?, polaris? total radio? and ultimateblue? are trademarks of rfmd, llc. bluetooth is a trade- mark owned by bluetooth sig, inc., u.s.a. and licensed for use by rfmd. all other trade names, trademarks and registered tradem arks are the property of their respective owners. ?2006, rf micro devices, inc. product description 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com . rf mems spa2118z 850mhz 1 watt power amplifier with active bias rfmd?s spa2118z is a high efficiency gaas heterojunction bipolar tran- sistor (hbt) amplifier housed in a low-cost surface-mountable plastic package. these hbt amplifiers are fa bricated using molecular beam epi- taxial growth technology which produc es reliable and consistent perfor- mance from wafer to wafer and lot to lot. this product is specifically designed for use as a driver amplifier for infrastructure equipment in the 850mhz band. its high li nearity makes it an ideal choice for multi-carrier and digital applications. (+1) 336-678-5570 sales-support@rfmd.com vc1 vbias rfin vpc2 rfout/ vc2 active bias ? high linearity performance ? +20.7dbm, is-95 cdma channel power at -55dbc acp ? +47dbm typ. oip3 ? high gain: 33db typ. ? on-chip active bias control ? patented high reliability gaas hbt technology ? surface-mountable plastic package applications ? is-95 cdma systems ? multi-carrier applications ? amps, ism applications ds121024 ? package: exposed pad soic-8 spa2118z 850mhz 1 watt power amplifier with active bias parameter specification unit condition min. typ. max. frequency of operation 810 900 960 mhz output power at 1db compression 29.0 dbm adjacent channel power -55.0 -52.0 dbc is-95 at 880mhz, 885khz offset, p out =20.7dbm small signal gain 31.5 33.0 34.5 db 880mhz input vswr 1.5:1 output third order intercept point 47.0 dbm power out per tone=+14dbm noise figure 5.0 db device current 360 400 425 ma i bias =10ma, i c1 =70ma, i c2 =320ma device voltage 4.75 5.0 5.25 v thermal resistance (junction - lead) 31 c/w t l =85c test conditions: z 0 =50 ? temp=25c v cc =5.0v
2 of 7 ds121024 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com . spa2118z 850mhz to 950mhz application circuit data, i cc =400ma, v cc =5v, is-95, 9 channels forward absolute maximum ratings parameter rating unit max supply current (i c1 ) at v cc typ. 150 ma max supply current (i c2 ) at v cc typ. 750 ma max device voltage (v cc ) at i cc typ. 6.0 v max rf input power 10 dbm max junction temp (t j )+160c max storage temp +150 c moisture sensitivity level 3 msl operation of this device beyond any one of these limits may cause permanent dam- age. for reliable continuous operation, the device voltage and current must not exceed the maximum operating values specified in the table on page one. bias conditions should also satisfy the following expression: i d v d <(t j -t l )/r th , j-l caution! esd sensitive device. exceeding any one or a combination of the absolute maximum rating conditions may cause permanent damage to the device. ex tended application of absolute maximum rating conditions to the device may reduce device reliability. specified typical perfor- mance or functional operation of the devi ce under absolute maximum rating condi- tions is not implied. the information in this publication is believed to be accurate and reliable. however, no responsibility is assumed by rf micro devices, inc. ("rfmd") for its use, nor for any infringement of patents, or other rights of third parties, resulting from its use. no license is granted by implication or otherwise under any patent or patent rights of rfmd. rfmd reserves the right to change component circuitry, recommended appli- cation circuitry and specifications at any time without prior notice. rfmd green: rohs compliant per eu directive 2002/95/ec, halogen free per iec 61249-2-21, < 1000ppm each of antimony trioxide in polymeric materials and red phosphorus as a fl ame retardant, and <2% antimony in solder. is-95 cdma at 880 mhz channel output power (dbm) dbc 880 mhz adjacent channel power vs. channel output power +24 dbm +20 dbm +16 dbm +10 dbm -85.0 -80.0 -75.0 -70.0 -65.0 -60.0 -55.0 -50.0 -45.0 -40.0 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 -40c 25c 85c t=+25c dbm
3 of 7 ds121024 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com . spa2118z 850mhz to 950mhz application circuit data, i cc =400ma, v cc =5v 26 28 30 32 34 36 0.8 0.85 0.9 0.95 1 24 28 32 36 40 0.8 0.85 0.9 0.95 1 -50 -40 -30 -20 -10 0 0.80.850.90.95 1 p1db vs frequency ghz db input/output return loss, isolation vs frequency ghz dbm ghz gain vs. frequency db s11 s12 s22 -40c 25c 85c -40c 25c 85c t=+25c 0 100 200 300 400 500 600 0123456 25c -40c 85c device current vs. source voltage v cc (v) device current (ma)
4 of 7 ds121024 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com . spa2118z simplified device schematic recommended land pattern dimensions in inches (millimeters) refer to drawing posted at www.rfmd.com for tolerances. pin function description 1vc1 supply voltage for the first stage transistor. the configuration as shown on the application schematic is required for opti- mum rf performance. 2vbias bias control pin for the active bias network. recommended configuration is shown in the application schematic. 3rf in rf input pin. this pin requires the use of an external dc -blocking capacitor as shown in the application shcematic. 4vpc2 bias control pin for the active bias network for the second stage. the recommended configuration is shown in the appli- cation schematic. 5, 6, 7, 8 rf out/vc2 rf output and bias pin. bias should be supplied to this pin through an external rf choke. because dc biasing is present on this pin a dc-blocking capacitor should be used in most applications. (see application schematic.) the supply side of the bias network should be well bypassed. an output matching network is necessary for optimum performance. epad gnd exposed area on the bottom side of the package needs to be soldered to the ground plane of the board for thermal and rf performance. several vias should be located under the epad as shown in the recommended land pattern. 2 3 5-8 active bias networ k active bias network 2 4 1 ( r e t e m a r a p 0.020 [0.51] 0.140 [3.56] 0.080 [2.03] 0.050 [1.27] 0.150 [3.81] 0.300 [7.62] plated-thru holes (0.015" dia, 0.030" pitch) machine screws
5 of 7 ds121024 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com . spa2118z package drawing dimensions in inches (millimeters) refer to drawing posted at www.rfmd.com for tolerances.
6 of 7 ds121024 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com . spa2118z 850mhz to 950mhz application schematic 850mhz to 950mhz evaluation board layout and bill of materials vc c 6.8pf 33 nh 39pf 10uf tantalum 100pf 15pf 2.2n h 1000pf 82pf 6.8k 330 ohm 1200pf z=63 , 9.5 5 6 7 8 4 3 2 1 z=50 , 15.1 i c2 i c1 i bias vpc external connection ref. des. value part number c1 15pf, 5% rohm mch18 series c2 82pf, 5% rohm mch18 series c3 10uf, 10% avx tajb106k020r c4 1000pf, 5% rohm mch18 series c5 39pf, 5% rohm mch18 series c6 1200pf, 5% rohm mch18 series c7 6.8pf, 0.5pf rohm mch18 series c8 100pf, 5% rohm mch18 series l1 2.2nh, 0.3nh toko ll1608-fs series l2 33nh, 5% coilcraft 1008hq series r1 6.8k ohm, 5% rohm mcr03 series r2 330 ohm, 5% rohm mcr03 series vpc eval board ecb-101161 rev. c soic-8 pa vc c c8 c3 c1 l2 c6 c5 l1 c7 c4 c2 2012 r2 r1 sirenza microdevic es
7 of 7 ds121024 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com . spa2118z branding diagram ordering information ordering code description spa2118z 7? reel with 500 pieces spa2118zsq sample bag with 25 pieces spa2118zsr 7? reel with 100 pieces SPA2118Z-EVB1 900mhz pcba
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