ar c hive inf o rmati o n archive information 1 mrf898 motorola rf device data the rf line designed for 24 volt uhf largeCsignal, common base amplifier applications in industrial and commercial fm equipment operating in the range of 850C960 mhz. ? motorola advanced amplifier concept package ? specified 24 volt, 900 mhz characteristics output power = 60 watts power gain = 7.0 db min efficiency = 60% min ? double input/output matched for wideband performance and simplified external matching ? series equivalent largeCsignal characterization ? gold metallized, emitter ballasted for long life and resistance to metal migration ? silicon nitride passivated ? circuit board photomaster available upon request by contacting rf tactical marketing in phoenix, az. maximum ratings rating symbol value unit collectorCemitter voltage v ceo 30 vdc collectorCbase voltage v cbo 55 vdc emitterCbase voltage v ebo 4.0 vdc collector current continuous i c 10 adc total device dissipation @ t c = 25 c derate above 25 c p d 175 1.0 watts w/ c storage temperature range t stg C65 to +150 c thermal characteristics characteristic symbol max unit thermal resistance, junction to case r jc 1.0 c/w electrical characteristics (t c = 25 c unless otherwise noted.) characteristic symbol min typ max unit off characteristics collectorCemitter breakdown voltage (i c = 50 madc, i b = 0) v (br)ceo 30 vdc collectorCemitter breakdown voltage (i c = 50 madc, v be = 0) v (br)ces 55 vdc emitterCbase breakdown voltage (i e = 5.0 madc, i c = 0) v (br)ebo 4.0 vdc collector cutoff current (v ce = 30 vdc, v be = 0, t c = 25 c) i ces 10 madc (continued) order this document by mrf898/d semiconductor technical data 60 w, 850C960 mhz rf power transistor npn silicon case 333aC02, style 1 ? motorola, inc. 1994 rev 6
ar c hive inf o rmati o n archive information mrf898 2 motorola rf device data electrical characteristics continued (t c = 25 c unless otherwise noted.) characteristic symbol min typ max unit on characteristics dc current gain (i c = 2.0 adc, v ce = 5.0 vdc) h fe 20 50 150 dynamic characteristics output capacitance (1) (v cb = 24 vdc, i e = 0, f = 1.0 mhz) c ob 60 pf functional tests commonCbase amplifier power gain (v cc = 24 vdc, p out = 60 w, f = 900 mhz) g pb 7.0 7.9 db collector efficiency (v cc = 24 vdc, p out = 60 w, f = 900 mhz) 60 65 % output mismatch stress (v cc = 24 vdc, p out = 60 w, f = 900 mhz, vswr = 5:1, all phase angles) no degradation in output power note: 1. value of c ob is that of die only. it is not measurable in mrf898 because of internal matching network. figure 1. 850C960 mhz broadband test circuit b1, b2, b3 bead, ferroxcube 56C390C65/3b c1, c2, c12 39 pf, 100 mil chip capacitor c3, c11 91 pf, mini underwood or equivalent c4, c7, c9 10 f, 35 v electrolytic c5 4000 pf, 1.0 kv ceramic c6, c10 1000 pf, 350 v unelco or equivalent c8 47 pf, 100 mil chip capacitor l1, l4 4 turns #18 awg choke l2 11 turns #20 awg choke on 10 ohm, 1.0 watt resistor l3 3 turns #18 awg choke on 10 ohm, 1.0 watt resistor tl1, tl6 50 ohm microstrip tl2 400 x 950 mils tl3, tl4 140 x 200 mils tl5 320 x 690 mils tl7 260 x 230 mils board 3m epsilamC10, 50 mil bias boards 1/32 g10 or equivalent
ar c hive inf o rmati o n archive information 3 mrf898 motorola rf device data figure 2. output power versus input power figure 3. output power versus frequency figure 4. output power versus supply voltage figure 5. typical broadband circuit performance figure 6. input/output impedance versus frequency
mrf898 4 motorola rf device data package dimensions case 333aC02 issue c
identification notch n l e j h c k 2 pl d 4 pl f 2 pl q 2 pl CbC CaC CtC motorola reserves the right to make changes without further notice to any products herein. motorola makes no warranty, represe ntation or guarantee regarding the suitability of its products for any particular purpose, nor does motorola assume any liability arising out of the applicati on or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. typical parameters can and do vary in different applications. all operating parameters, including typicals must be validated for each customer application by customers tec hnical experts. motorola does not convey any license under its patent rights nor the rights of others. motorola products are not designed, intended, or auth orized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any othe r application in which the failure of the motorola product could create a situation where personal injury or death may occur. should buyer purchase or use motorola products for any such unintended or unauthorized application, buyer shall indemnify and hold motorola and its of ficers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any clai m of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that motorola was negligent regarding the desig n or manufacture of the part. motorola and are registered tr ademarks of motorola, inc. motorola, inc. is an equal opportunity/affirmative action employer. literature distribution centers: usa: motorola literature distribution; p.o. box 20912; phoenix, arizona 85036. europe: motorola ltd.; european literature centre; 88 tanners drive, blakelands, milton keynes, mk14 5bp, england. japan: nippon motorola ltd.; 4-32-1, nishi-gotanda, shinagawa-ku, tokyo 141, japan. asia pacific: motorola semiconductors h.k. ltd.; silicon harbour center, no. 2 dai king street, tai po industrial estate, tai p o, n.t., hong kong. mrf898/d ?
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