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1 of 11 optimum technology matching ? applied gaas hbt ingap hbt gaas mesfet sige bicmos si bicmos sige hbt gaas phemt si cmos si bjt gan hemt functional block diagram 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. ?2012, 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 customerservice@rfmd.com . ordering information bifet hbt soi ? rfda0047 digital controlled variable gain amplifier 400mhz to 2700mhz rfmd?s rfda0047 is a dual channel digital controlled variable gain amplifier fea- turing high linearity over the entire gain control range with noise figure less than 6.5db in its maximum gain state. the gains of two 6-bit digital step attenuators are programmed with a serial mode control interface (spi). the rfda0047 is packaged in a small 7.0mm x 7.0mm leadless laminate mcm, which contains plated through thermal vias for ultra-low th ermal resistance. this module is easy to use with no external matching components required. features ? dual channel vga ? frequency range 400mhz to 2700mhz ? full internal matching and no external bias inductors ? two 6-bit digital step attenuators ? 12-bit spi serial control programming ? high channel isolation = 50dbc ? max gain = 13db at 900mhz ? gain control range = 31.5db (0.5db step size) ? high oip3/p1db = +39/19dbm at 900mhz ? single + 5v supply ? small 32-pin, 7.0mm x 7.0mm, mcm ? power-up programming applications ? cellular, 3g infrastructure ? wibro, wimax, lte ? microwave radio ? high linearity power control ds140513 ? ? package: mcm 32-pin, 7.0mm x 7.0mm rfda0047dig- ital controlled variable gain amplifier rfda0047tr13 13? reel with 2500 pieces rfda0047tr7 7? reel with 750 pieces rfda0047sr 7? reel with 100 pieces rfda0047sq sample bag with 25 pieces RFDA0047PCK-410 400mhz to 2700mhz pcba with 5-piece sample bag
2 of 11 rfda0047 ds140513 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or customerservice@rfmd.com . absolute maximum ratings parameter rating unit supply voltage +5.5 v dc ds supply current 205 ma power dissipation 1100 mw maximum input rf power 24 dbm operating temperature (t case ) -40 to +85 c storage temperature -40 to +150 c junction temperature 165 c esd rating (hbm) 1000 (class 1c) v moisture sensitivity level msl 3 mttf = 1.0e6 hours at 165c junction temperature parameter specification unit condition min. typ. max. overall temp=25c, v cc = v dd = 5v, standard application circuit frequency 400 2700 mhz max gain 13 db attenuation = 0db gain control range 31.5 db step accuracy +/- (0.15+5% attenuation setting) db major state error up to 2700mhz p1db 19 dbm attenuation = 0db at 900mhz output ip3 39 dbm p out =0dbm/tone, 1mhz spacing at 900mhz control interface 12 bit spi interface settling time 250 ns ton, toff (10%/90% rf) noise figure 7 db attenuation = 0db channel-to-channel isolation 50 db input at rfin1 (or rfin2), the isolation between two outputs impedance 50 ? input return loss -18 db 900mhz output return loss -18 db 900mhz total supply voltage 4.75 5.0 5.25 v supply current 170 ma from v cc _spi, v cc _amp1 and v cc _amp2 thermal resistance 40 c/w junction to backside of device parameter unit 680mhz 900mhz 1700mhz 2300mhz 2550mhz 2700mhz max small signal gain db 13.5 13.5 13.3 13 13 13 output p1db dbm 19 19 19 18 18 17.5 output ip3 * dbm 40 39.5 35 32.5 31.5 31 noise figure db 6.5 6.5 7 7.5 7.5 7.5 * note: oip3 is tested at p out = 0dbm/tone and 1mhz spacing
3 of 11 rfda0047 ds140513 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or customerservice@rfmd.com . typical broadband performance v cc = 5.0v, i cc = 170ma -20 -15 -10 -5 0 5 10 15 01234 s21(db) frequency (ghz) gain versus frequency at major states, +25c 0db 0.5db 1db 2db 4db 8db 16db 31.5db 0 5 10 15 01234 s21 (db) frequency (ghz) gain versus frequency over temperature_max gain -20 -15 -10 -5 0 01234 s11(db) frequency (ghz) input return loss versus frequency at major states, +25c 0db 0.5db 1db 2db 4db 8db 16db 31.5db -20 -15 -10 -5 0 01234 s11 (db) frequency (ghz) input return loss versus frequency over temperature_max gain -30 -25 -20 -15 -10 -5 0 01234 s22 (db) frequency (ghz) output return loss versus frequency at major states, +25c 0db 0.5db 1db 2db 4db 8db 16db 31.5db -20 -15 -10 -5 0 01234 s22 (db) frequency (ghz) output return loss versus frequency over temperature_max gain 25c -40c 85c 25c -40c 85c 25c -40c 85c
4 of 11 rfda0047 ds140513 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or customerservice@rfmd.com . typical broadband performance v cc = 5.0v, i cc = 170ma -50 -45 -40 -35 -30 -25 -20 01234 s12 (db) frequency (ghz) isolation versus frequency at major states, +25c 0db 0.5db 1db 2db 4db 8db 16db 31.5db -40 -35 -30 -25 -20 -15 -10 01234 s12 (db) frequency (ghz) isolation versus frequency over temperature_max gain -35 -30 -25 -20 -15 -10 -5 0 01234 normalized attenuation (db) frequency (ghz) normalized attenuation versus frequency at major states, +25c 0db 0.5db 1db 2db 4db 8db 16db 31.5db -3 -2 -1 0 1 2 3 01234 accumulated step error (db) frequency(ghz) accumulated step error versus frequency at major states, +25c 0db 0.5db 1db 2db 4db 8db 16db 31.5db -60 -40 -20 0 20 40 60 01234 relative s21 phase (db) frequency (ghz) relative s21 phase versus frequency at major states, +25c 0db 0.5db 1db 2db 4db 8db 16db 31.5db 25c -40c 85c
5 of 11 rfda0047 ds140513 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or customerservice@rfmd.com . typical broadband performance v cc = 5.0v, i cc = 170ma 25 30 35 40 45 0.4 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6 4 oip3 (db) frequency (ghz) oip3 versus frequency over temperature_max gain 25c -40c 85c 12 14 16 18 20 22 0.4 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6 4 oip3 (db) frequency ghz) p1db versus frequency over temperature_max gain 25 30 35 40 45 0.4 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6 4 oip3 (db) frequency (ghz) oip3 versus frequency at major states, +25c 0db 0.5db 1db 2db 4db 8db 16db 12 14 16 18 20 22 0.4 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6 4 p1db (db) frequency (ghz) p1db versus frequency at major states, +25c 0db 0.5db 1db 2db 4db 8db 0 2 4 6 8 10 0.4 0.8 1.2 1.6 2 2.4 2.8 noise figure (db) frequency (ghz) noise figure versus frequency over temperature_max gain -70 -60 -50 -40 -30 01234 isolation (db) frequency (ghz) channel isolation versus frequency, max gain, +25c signal on rfin1 signal on rfin2 25c -40c 85c 25c -40c 85c
6 of 11 rfda0047 ds140513 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or customerservice@rfmd.com . truth table channel 1 control bit gain relative to maximum gain d11 d10 d9 d8 d7 d6 111111 0db 111110 -0.5db 111101 -1db 111011 -2db 110111 -4db 101111 -8db 011111 -16db 000000 -31.5db channel 2 control bit gain relative to maximum gain d5 d4 d3 d2 d1 d0 111111 0db 111110 -0.5db 111101 -1db 111011 -2db 110111 -4db 101111 -8db 011111 -16db 000000 -31.5db power-up programming truth table logic voltage levels pup attenuator setting state logic high attenuation at min, 0db low 0v to 0.8v low attenuation at max, 31.5db high 2.0v to 5.0v
7 of 11 rfda0047 ds140513 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or customerservice@rfmd.com . serial port interface spi timing diagram specifications parameter limit unit comment t1 25 mhz max clk frequency t2 20 ns min clk high t3 20 ns min clk low t4 5 ns min data to clk setup time t5 5 ns min data to clk hold time t6 30 ns min data valid t7 5 ns min le to clk setup time t8 5 ns min clk to le setup time t9 10 ns min le pulse width t10 20 ns max output set clk data le dout clk data le msb d11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d1 lsb d0 programming example - 12 bit spi timing diagram
8 of 11 rfda0047 ds140513 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or customerservice@rfmd.com . pin names and descriptions pin name description 1rfin_1 amp 1 rf input 2gnd rf/dc ground connection 3 spi_vcc supply voltage for spi chip 4spi_le serial latch enable input 5 spi_data serial data input 6spi_clk serial clock input 7pup power-up programming pin 8rfin_2 amp 2 rf input 9gnd rf/dc ground connection 10 dsa2_vcc supply voltage for dsa2 chip 11 gnd rf/dc ground connection 12 gnd rf/dc ground connection 13 nc no connection 14 gnd rf/dc ground connection 15 amp2_vcc supply voltage for amplifier 2 16 gnd rf/dc ground connection 17 rfout_2 amp 2 rf output 18 gnd rf/dc ground connection 19 gnd rf/dc ground connection 20 gnd rf/dc ground connection 21 gnd rf/dc ground connection 22 gnd rf/dc ground connection 23 gnd rf/dc ground connection 24 rfout_1 amp 1 rf output 25 gnd rf/dc ground connection 26 amp1_vcc supply voltage for amplifier 1 27 gnd rf/dc ground connection 28 nc no connection 29 gnd rf/dc ground connection 30 gnd rf/dc ground connection 31 dsa1_vcc supply voltage for dsa1 chip 32 gnd rf/dc ground connection
9 of 11 rfda0047 ds140513 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or customerservice@rfmd.com . evaluation board schematic 400mhz to 2700mhz application circuit evaluation board build of materials (bom) 400mhz to 2700mhz application circuit description reference designator manufacturer manufacturer?s p/n rfdax0x7, pcb ddi rfdax0x7410 rfda0047sb u1 rfmd rfda0047 res, 0 ? , 0402 c14-c17, r5 kamaya, inc rmc1/16sjpth cap, 1000pf, 10%, 50v, x7r, 0402 c1-c3, c5-c6, c8-c10, c13 murata electronics grm155r71h102ka01e cap, 0.1 ? f, 10%, 16v, x7r, 0603 c4, c7, c11-c12 murata electronics grm188r71c104ka01d fer, bead, 70 ? , 4a, 0603 l1-l5 murata electronics blm18sg700tn1d res, 1k, 5%, 1/16w, 0402 r1-r3 koa speer rk73b1ettp102j conn, sma, end lnch, rnd pin, 0.059" j1-j4 gigalane psf-s01-006 conn, hdr, st, plrzd, 5-pin, 0.100" p1 itw pancon mpss100-5-c dnp r4, r6-r7, j5-j6, p2 n/a n/a
10 of 11 rfda0047 ds140513 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or customerservice@rfmd.com . evaluation board assembly drawing 400mhz to 2700mhz application circuit
11 of 11 rfda0047 ds140513 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or customerservice@rfmd.com . package drawing 7.0mm x 7.0mm laminate module 7.0000.10 7.0000.10 1.1750.04 0.275 ref a = 0.400 x 0.450 mm b = 0.450 x 0.400 mm c = 2.650 x 2.500 mm d = 2.350 x 5.300 mm a a a a a a a b b b b b b a b b a a a aa a a b b b b b b a b b 0.000 2x 0.350 2x 1.050 2x 1.750 2x 2.450 2x 0.350 2x 1.050 2x 1.750 2x 2.450 8x 3.175 8x 3.175 2x 2.450 2x 1.750 2x 1.050 2x 0.350 2x 0.350 0.000 2x 1.050 2x 1.750 2x 2.450 8x 3.175 2x 1.325 1.475 1.400 1.400 c c d 8x 3.175 0.100 all edges 32x 0.300 0.300 0.300 28x 0.300 notes: 1. shaded area represents pin 1 location

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