publication date : jul.2011 1 < silicon rf power module s > ra 20h8087 m rohs compliance, 806 - 870 mhz 20 w 12.5 v , 3 stage amp. for mobile radio description the ra 20h8087 m is a 20 - watt rf mosfet amplifier module for 12.5 - volt m obile radios that operate in the 806 - to 870 - mhz range. the battery can be connected directly to the drain of the enhancement - mode mosfet transistors. without the gate voltage (v gg =0v), only a small leakage current flows into the drain and the rf input signal attenuates up to 60 db. the output power and drain curre nt increase as the gate voltage increases. with a gate voltage around 4v (minimum), output power and drain current increases substantially. the nominal output power becomes available at 4.5v (typical) and 5v (maximum). at v gg =5v, the typical gate current is 1 ma. this module is designed for non - linear fm modulation, but may also be used for linear modulation by setting the drain quiescent current with the gate voltage and controlling the output power with the input power. features ? enhancement - mode mosfe t transistors (i dd ? 0 @ v dd = 12.5 v, v gg =0v) ? p out > 20 w , ? t > 25 % @ v dd = 12.5 v, v gg =5v, p in = 5 0mw ? broadband frequency range: 806 - 870 mhz ? low - power control current i gg = 1 ma (typ) at v gg =5v ? module size: 66 x 21 x 9.88 mm ? linear operation is possible by sett ing the quiescent drain current with the gate voltage and controlling the output power with the input power rohs compliance ? ra 20h8087 m - 101 is a rohs complian t products. ? rohs compliance is indicate by the letter ?g? after the lot marking . ? this produ ct include the lead in the glass of electronic parts and the lead in electronic ceramic parts. however, it is applicable to the following exceptions of rohs directions. 1.lead in the g lass of a cathode - ray tube, electronic parts, and fluorescent tubes. 2.l ead in electronic c eramic parts. ordering information: order number supply form ra 20h8087 m - 1 01 antistatic tray, 10 modules/tray 1 rf input (p in ) 2 gate voltage (v gg ), power control 3 drain voltage (v dd ), battery 4 rf output (p out ) 5 rf ground (case) block diagram 2 4 1 5 3 package code: h2s
< silicon rf power module s > ra20 h 8087 m rohs compliance, 806 - 870 mhz 20 w 12.5 v , 3 stage amp. for mobile radio publication date : jul.2011 2 maximum ratings ( t case =+25 c , unless otherwise specified ) symbol parameter conditions rating unit v dd drain voltage v gg <5 v 17 v v gg gate voltage v dd <12.5 v, p in =0mw 6 v p in input power 100 mw p out output power 40 w t case(op) operation case temperature range f= 806 - 870 mhz, z g =z l =50 ? - 30 to + 110 c t stg storage temperature range - 40 to +110 c the above parameters ar e independently guaranteed. electrical characteristics ( t case =+25 c , z g =z l =50 ? , unless otherwise specified ) symbol parameter conditions min typ max unit f frequency range 806 - 870 mhz p out output power v dd = 12.5 v , v gg = 5 v , p in = 5 0mw 20 - - w ? t total eff iciency 25 - - % 2f o 2 nd harmonic - - - 30 dbc ? in input vswr - - 3:1 ? i gg gate current p out =20w(v gg control) v dd = 12.5 v p in = 5 0mw - 1 - ma ? stability v dd = 10.0 - 15.5 v , p in =25 - 70mw, p o ut =1 to 25w (v gg c ontrol) , load vswr= 3 :1 no parasitic oscillation ? ? load vswr tolerance v dd = 15 .2v, p in = 5 0mw, p out = 20 w (v gg c ontrol), l oad vswr = 8 :1 no degradation or destroy ? all parameters, conditions, ratings, and limits are subject to change without notice.
< silicon rf power module s > ra20 h 8087 m rohs compliance, 806 - 870 mhz 20 w 12.5 v , 3 stage amp. for mobile radio publication date : jul.2011 3 output power, total efficiency, 2 nd , 3 rd harmonics versus frequency and input vswr versus frequency output power, power gain and output power, power gain and drain current versus input power drain current versus input power 0 10 20 30 40 50 60 750 770 790 810 830 850 870 frequency f(mhz) o u t p u t p o w e r p o u t ( w ) i n p u t v s w r ? i n ( - ) 0 10 20 30 40 50 60 t o t a l e f f i c i e n c y ? t ( % ) v dd =12.5v p in =50mw p out @v gg =5v ? t @p out =20w ? in @p out =20w 0 10 20 30 40 50 60 -15 -10 -5 0 5 10 15 20 input power p in (dbm) o u t p u t p o w e r p o u t ( d b m ) p o w e r g a i n g p ( d b ) 0 4 8 12 16 20 24 d r a i n c u r r e n t i d d ( a ) f=764mhz, v dd =12.5v, v gg =5v p out i dd gp 0 10 20 30 40 50 60 -15 -10 -5 0 5 10 15 20 input power p in (dbm) o u t p u t p o w e r p o u t ( d b m ) p o w e r g a i n g p ( d b ) 0 4 8 12 16 20 24 d r a i n c u r r e n t i d d ( a ) f=806mhz, v dd =12.5v, v gg =5v p out gp i dd -70 -60 -50 -40 -30 -20 750 770 790 810 830 850 870 frequency f(mhz) h a r m o n i c s ( d b c ) v dd =12.5v p in =50mw 2 nd @p out =20w 3 rd @p out =20w output power, power gain and output power, power gain and drain current versus input power drain current versus input power output power, power gain and drain current versus input power 0 10 20 30 40 50 60 -15 -10 -5 0 5 10 15 20 input power p in (dbm) o u t p u t p o w e r p o u t ( d b m ) p o w e r g a i n g p ( d b ) 0 4 8 12 16 20 24 d r a i n c u r r e n t i d d ( a ) f=825mhz, v dd =12.5v, v gg =5v p out gp i dd 0 10 20 30 40 50 60 -15 -10 -5 0 5 10 15 20 input power p in (dbm) o u t p u t p o w e r p o u t ( d b m ) p o w e r g a i n g p ( d b ) 0 4 8 12 16 20 24 d r a i n c u r r e n t i d d ( a ) f=851mhz, v dd =12.5v, v gg =5v p out gp i dd 0 10 20 30 40 50 60 -15 -10 -5 0 5 10 15 20 input power p in (dbm) o u t p u t p o w e r p o u t ( d b m ) p o w e r g a i n g p ( d b ) 0 4 8 12 16 20 24 d r a i n c u r r e n t i d d ( a ) f=870mhz, v dd =12.5v, v gg =5v p out gp i dd typical performance ( t case =+25c, z g =z l =50 ? , unless otherwise specified )
< silicon rf power module s > ra20 h 8087 m rohs compliance, 806 - 870 mhz 20 w 12.5 v , 3 stage amp. for mobile radio publication date : jul.2011 4 output power and drain current output power and drain current versus drain voltage versus drain voltage output power and drain current output power and drain current versus drain voltage versus drain voltage 0 10 20 30 40 50 60 70 80 2 4 6 8 10 12 14 16 drain voltage v dd (v) o u t p u t p o w e r p o u t ( w ) 0 2 4 6 8 10 12 14 16 d r a i n c u r r e n t i d d ( a ) p out f=764mhz, v gg =5v, p in =50mw i dd 0 10 20 30 40 50 60 70 80 2 4 6 8 10 12 14 16 drain voltage v dd (v) o u t p u t p o w e r p o u t ( w ) 0 2 4 6 8 10 12 14 16 d r a i n c u r r e n t i d d ( a ) p out f=806mhz, v gg =5v, p in =50mw i dd 0 10 20 30 40 50 60 70 80 2 4 6 8 10 12 14 16 drain voltage v dd (v) o u t p u t p o w e r p o u t ( w ) 0 2 4 6 8 10 12 14 16 d r a i n c u r r e n t i d d ( a ) p out f=825mhz, v gg =5v, p in =50mw i dd 0 10 20 30 40 50 60 70 80 2 4 6 8 10 12 14 16 drain voltage v dd (v) o u t p u t p o w e r p o u t ( w ) 0 2 4 6 8 10 12 14 16 d r a i n c u r r e n t i d d ( a ) p out f=851mhz, v gg =5v, p in =50mw i dd output power and drain current versus drain voltage output power and drain current output power and drain current versus gate voltage versus gate voltage 0 10 20 30 40 50 60 2.5 3 3.5 4 4.5 5 5.5 gate voltage v gg (v) o u t p u t p o w e r p o u t ( w ) 0 2 4 6 8 10 12 d r a i n c u r r e n t i d d ( a ) p out f=764mhz, v dd =12.5v, p in =50mw i dd 0 10 20 30 40 50 60 2.5 3 3.5 4 4.5 5 5.5 gate voltage v gg (v) o u t p u t p o w e r p o u t ( w ) 0 2 4 6 8 10 12 d r a i n c u r r e n t i d d ( a ) p out f=806mhz, v dd =12.5v, p in =50mw i dd 0 10 20 30 40 50 60 70 80 2 4 6 8 10 12 14 16 drain voltage v dd (v) o u t p u t p o w e r p o u t ( w ) 0 2 4 6 8 10 12 14 16 d r a i n c u r r e n t i d d ( a ) p out f=870mhz, v gg =5v, p in =50mw i dd typical performance ( t case =+25c, z g =z l =50 ? , unless otherwise specified )
< silicon rf power module s > ra20 h 8087 m rohs compliance, 806 - 870 mhz 20 w 12.5 v , 3 stage amp. for mobile radio publication date : jul.2011 5 output power and drain current output power and drain current versus gate voltage versus gate voltage output power and drain current versus gate voltage 0 10 20 30 40 50 60 2.5 3 3.5 4 4.5 5 5.5 gate voltage v gg (v) o u t p u t p o w e r p o u t ( w ) 0 2 4 6 8 10 12 d r a i n c u r r e n t i d d ( a ) p out f=825mhz, v dd =12.5v, p in =50mw i dd 0 10 20 30 40 50 60 2.5 3 3.5 4 4.5 5 5.5 gate voltage v gg (v) o u t p u t p o w e r p o u t ( w ) 0 2 4 6 8 10 12 d r a i n c u r r e n t i d d ( a ) p out f=851mhz, v dd =12.5v, p in =50mw i dd 0 10 20 30 40 50 60 2.5 3 3.5 4 4.5 5 5.5 gate voltage v gg (v) o u t p u t p o w e r p o u t ( w ) 0 2 4 6 8 10 12 d r a i n c u r r e n t i d d ( a ) p out f=870mhz, v dd =12.5v, p in =50mw i dd typical performance ( t case =+25c, z g =z l =50 ? , unless otherwise specified )
< silicon rf power module s > ra20 h 8087 m rohs compliance, 806 - 870 mhz 20 w 12.5 v , 3 stage amp. for mobile radio publication date : jul.2011 6 outline drawing (mm) 12.0 1 16 .5 1 43.5 1 55.5 1 66.0 0.5 60.0 0.5 51.5 0.5 3.0 0.3 7.25 0.8 1 4 . 0 1 2 1 . 0 0 . 5 9 . 5 0 . 5 2 . 0 0 . 5 2 - r2 0.5 1 7 . 0 0 . 5 ?0.45 0.15 4 . 0 0 . 3 5 1 2 3 4 3 . 1 + 0 . 6 / - 0 . 4 7 . 5 0 . 5 2 . 3 0 . 3 ( 9 . 8 8 ) (50.4) 0 . 0 9 0 . 0 2 1 rf i nput (p in ) 2 gate voltage (v gg ) 3 drain voltage (v dd ) 4 rf o utput (p out ) 5 rf g round (case)
< silicon rf power module s > ra20 h 8087 m rohs compliance, 806 - 870 mhz 20 w 12.5 v , 3 stage amp. for mobile radio publication date : jul.2011 7 test block diagram 1 rf i nput (p in ) 2 gate voltage (v gg ) 3 drain voltage (v dd ) 4 rf o utput (p out ) 5 rf g round (case) equivalent circu it c1, c2 : 4700pf, 22uf in parallel directional coupler attenuator power meter spectrum analyzer signal generator attenuator pre - amplifier power meter directional coupler dut 5 4 3 2 1 z g = 50 ? z l =50 ? c1 c2 - + dc power supply v gg + - dc power supply v dd attenuator 1 5 2 3 4
< silicon rf power module s > ra20 h 8087 m rohs compliance, 806 - 870 mhz 20 w 12.5 v , 3 stage amp. for mobile radio publication date : jul.2011 8 recommendations and app lication information: construction: this module consists of an alumina substrate soldered onto a copper flange. for mechanical protection, a plastic cap is attached with silicone. the mosfet transistor chips are die bonded onto metal, wire bonded to the su bstrate, and coated with resin. lines on the substrate (eventually inductors), chip capacitors, and resistors form the bias and matching circuits. wire leads soldered onto the alumina substrate provide the dc and rf connection. following conditions must be avoided: a) bending forces on the alumina substrate (for example, by driving screws or from fast thermal changes) b) mechanical stress on the w ire leads (for example, by first soldering then driving screws or by thermal expansion) c) d efluxing solvents re acting with the resin coating on the mosfet chips (for example, trichlor o ethylene) d ) esd, surge, overvoltage in combination with load vswr, and oscillation esd: this mosfet module is sensitive to esd voltages down to 1000v. appropriate esd precautions are required. mounting: heat sink flatness must be less than 50 m (a heat sink that is not flat or particles between module and heat sink may cause the ceramic substrate in the module to crack by bending forces, either immediately when driving screws or late r when thermal expansion forces are added). a thermal compound between module and heat sink is recommended for low thermal contact resistance and to reduce the bending stress on the ceramic substrate caused by the temperature difference to the heat sink. t he module must first be screwed to the heat sink, then the leads can be soldered to the printed circuit board. m3 screws are recommended with a tightening torque of 4.0 to 6.0 kgf - cm . soldering and defluxing: this module is designed for manual soldering. t he leads must be soldered after the module is screwed onto the heat sink. the temperature of the lead (terminal) soldering should be lower than 350c and shorter than 3 second . ethyl alcohol is recommend for removing flux. trichlor o ethylene solvents must n ot be used (they may cause bubbles in the coating of the transistor chips which can lift off the bond wires). thermal design of the heat sink: at p out = 20 w, v dd =12.5v and p in =50mw each stage transistor operating conditions are : stage p in (w) p out (w) r th(c h - case) (c/w) i dd @ ? t = 25 % (a) v dd (v) 1 st 0.05 1.0 23.0 0. 18 2 nd 1.0 8 .0 3.2 2.10 3 rd 8 .0 20 .0 1. 6 4.00 12.5 the channel temperatures of each stage transistor t ch = t case + (v dd x i dd - p out + p in ) x r th(ch - case) are: t ch1 = t case + (12.5v x 0. 18 a - 1.0 w + 0.05w) x 23.0 c/w = t case + 29.9 c t ch2 = t case + (12.5v x 2.1 0a - 8 .0w + 1.0 w) x 3.2 c/w = t case + 61.6 c t ch3 = t case + (12.5v x 4.0 0a - 20 .0w + 8 .0w) x 1. 6 c/w = t case + 60.8 c for long - term reliability, it is best to keep the module case t emperature (t case ) below 90c. for an ambient temperature t air =60c and p out = 20 w , the required thermal resistance r th (case - air) = ( t case - t air ) / ( (p out / ? t ) - p out + p in ) of the heat sink, including the contact resistance, is: r th(case - air) = (90c - 60c) / ( 20 w/ 25 % - 20 w + 0.0 5 w) = 0.50 c/w when mounting the module with the thermal resistance of 0.50 c/w, the channel temperature of each stage transistor is: t ch1 = t air + 59.9 c t ch2 = t air + 91.6 c t ch3 = t air + 90.8 c the 175c maximum rat ing for the channel temperature ensures application under derated conditions.
< silicon rf power module s > ra20 h 8087 m rohs compliance, 806 - 870 mhz 20 w 12.5 v , 3 stage amp. for mobile radio publication date : jul.2011 9 output power control: depending on linearity, the following two methods are recommended to control the output power: a) non - linear fm modulation: by the gate voltage (v gg ). wh en the gate voltage is close to zero, the rf input signal is attenuated up to 60 db and only a small leakage current flows from the battery into the drain. around v gg =4v, the output power and drain current increases substantially. around v gg =4.5v (typical) to v gg =5v (maximum), the nominal output power becomes available. b) linear am modulation: by rf input power p in . the gate voltage is used to set the drain?s quiescent current for the required linearity. oscillation: to test rf characteristics, this modu le is put on a fixture with two bias decoupling capacitors each on gate and drain, a 4.700 pf chip capacitor, located close to the module, and a 22 f (or more) electrolytic capacitor. when an amplifier circuit around this module shows oscillation, the fol lowing may be checked: a) do the bias decoupling capacitors have a low inductance pass to the case of the module? b) is the load impedance z l =50 ? ? c) is the source impedance z g =50 ? ? a ttention: 1.high temperature; this product might have a heat generation while operation,please take notice that have a possibility to receive a burn to touch the operating product directly or touch the product until cold after switch off. at the near the product,do not place the combustible material that have possibilities to arise the fire. 2. generation of high frequency power; this product generate a high frequency power. please take notice that do not leakage the unnecessary electric wave and use this products without cause damage for human and property per normal operat ion. 3. before use; before use the product,please design the equipment in consideration of the risk for human and electric wave obstacle for equipment. precaution for the use of mitsubishi silicon rf power amplifier devices: 1. the specifications of menti on are not guarantee values in this data sheet. please confirm additional details regarding operation of these products from the formal specification sheet. for copies of the formal specification sheets, p lease contact one of our sales offices . 2.ra seri es products (rf power amplifier modules) and rd series products (rf power transistors) are designed for consumer mobile communication terminals and were not specifically designed for use in other applications. in particular, while these products are highl y reliable for their designed purpose, they are not manufactured under a quality assurance testing protocol that is sufficient to guarantee the level of reliability typically deemed necessary for critical communications elements . in the application, which is base station applications and fixed station applications that operate with long term continuous transmission and a higher on - off frequency during transmitting, please consider the derating, the redundancy system, appropriate setting of the maintain period and others as needed. for the reliability report which is described a bout predicted operating life time of mitsubishi silicon rf products , please contact mitsubishi electric corporation or an authorized mitsubishi semiconductor product distributor . 3.ra series products use mosfet semiconductor technology. the y are sensitiv e to esd voltage therefore a ppropriate esd precautions are required. 4.in order to maximize reliability of the equipment, it is better to keep the devices temperature low. it is recommended to utilize a sufficient sized heat - sink in conjunction with other cooling methods as needed (fan, etc.) to keep the case temperature for ra series products lower than 60deg/c under standard conditions , and less than 90deg/c under extreme conditions . 5.ra series products are designed to operate into a nominal load imped ance of 50 ohm s . under the condition of operating into a severe high load vswr approaching an open or short, an over load condition could occur. in the worst case there is risk for burn out of the transistors and burning of other parts including the subst rate in the module. 6.the formal specification in cludes a guarantee against parasitic oscillation under a specified maximum load mismatch condition . the inspection for parasitic oscillation is performed on a sample basis on our manufacturing line . it is re commended that verification of no parasitic oscillation be performed at the completed equipment level also . 7.for specific precaution s regarding assembly of these products into the equipment , please refer to the supplementary item s in the specification she et. 8. warranty for the product is void if the products protective cap (lid) is removed or if the product is modified in any way from it?s original form. 9.for additional ?s afety first ? in your circuit design and notes regarding the materials , please refer the last page of this data sheet . 10. please refer to the additional precaution s in the formal specification sheet.
< silicon rf power module s > ra20 h 8087 m rohs compliance, 806 - 870 mhz 20 w 12.5 v , 3 stage amp. for mobile radio publication date : jul.2011 10 ? 2011 mitsubishi electric corporation. all rights reserved. keep safety first in your circuit designs! mitsubishi electric corporation puts the maximum effort into making semiconductor products better and more reliable, but there is always the possi bility that trouble may occur with them. trouble with semiconductors may lead to personal injury, fire or property damage. remember to give due consideration to safety when making your circuit designs, with appropriate measures such as (i) placement of sub stitutive, auxiliary circuits, (ii) use of non - flammable material or (iii) prevention against any malfunction or mishap. notes regarding these materials ? these materials are intended as a reference to ass ist our customers in the selection of the mitsubishi semiconductor product best suited to the customer?s application; they do not convey any license under any intellectual property rights, or any other rights, belonging to mitsubishi electri c corporation o r a third party. ? mitsubishi electric corporation assumes no responsibility for any damage, or infringement of any third - party?s rights, originating in the use of any product data, diagrams, charts, programs, algorithms, or circuit application examples con tained in these materials. ? all information contained in these materials, including product data, diagrams, charts, programs and algorithms represents information on products at the time of publication of these material s, and are subject to change by mitsu bishi electric corporation without notice due to product improvements or other reasons. it is therefore recommended that customers contact mitsubishi electric corporation or an authorized m itsubishi semiconductor product distributor for the latest product information before purchasing a product listed herein. the information described here may contain technical inaccuracies or typographical errors. mitsubishi electric corporation assumes no responsibility for any damage, liability, or other loss rising from these inaccuracies or errors. please also pay attention to information published by mitsubishi electric corporation by various means, including the mitsubishi semiconductor home page (http: //www. m itsubishi e lectric.com/). ? when using any or all of the info rmation contained in these materials, including product data, diagrams, charts, programs, and algorithms, please be sure to evaluate all information as a total system before making a final decision on the applicability of the information and products. mits ubishi electric corporation assumes no responsibility for any damage, liability or other loss resulting from th e information contained herein. ? mitsubishi electric corporation semiconductors are not designed or manufactured for use in a device or system th at is used under circumstances in which human life is potentially at stake. please contact mitsubishi electric corporation or an authorized mitsubishi semiconductor product distributor when considering the use of a product contained herein for any specific purposes, such as apparatus or systems for transportation, vehicular, medical, aerospace, nuclear, or underse a repeater use. ? the prior written approval of mitsubishi electric corporation is necessary to reprint or reproduce in wh ole or in part these mate rials. ? if these products or technologies are subject to the japanese export control restrictions, they must be exported under a license from the japanese government and cannot be imported into a country other than the approved destination. any diversion o r re - export contrary to the export control laws and regulations of japan and/or the country of destination is prohibited. ? please contact mitsubishi electric corporation or an authorized mitsubishi semiconductor product distributor for further details on t hese materials or the products contained therein.
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