1 of 9 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. ?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 . ordering information bifet hbt ldmos ? 1 2 3 4 5 6 18 17 16 15 14 13 7 8 9 10 11 12 24 23 22 21 20 19 6 bi t ds a logic circuit n/c vcc n/c rf1 n/c n/c n/c n/c n/c rf2 n/c acg6 a cg1 a cg2 a cg3 a cg 4 a cg5 n/c c0. 5 c1 c2 c4 c8 c16 RFSA2614 parallel controlled digital step attenuator 50-4000mhz, 6-bit, 0.5db lsb the RFSA2614 is a 6-bit digital step attenuator (dsa) that features high linearity over the entire 31.5db gain control range with excellent step accuracy in 0.5db steps. the parallel-controlled RFSA2614 has an on-chip decoder that is both 3v and 5v compatible. it also offers a rugged class 1b hbm esd rating via on-chip esd circuitry. features ? frequency range 50mhz to 4000mhz ? 6-bits, 31.5db range, 0.5db step ? high linearity, iip3>49dbm ? 3v and 5v logic compatible ? on-chip parallel decoder ? parallel programming interface ? on-chip esd protection >500v hbm ? single supply, 3v to 5v operation applications ? transceiver rf and if applications ? cellular, pcs, gsm, umts, lte, wimax/wlan ? wireless data, satellite terminals ? test equipment ds110126 ? package: qfn, 24-pin, 4mmx4mm RFSA2614par- allel controlled digital step attenuator 50- 4000 mhz, 6- bit, 0.5 db lsb RFSA2614sr 7? reel with 100 pieces RFSA2614sq sample bag with 25 pieces RFSA2614tr7 7? reel with 750 pieces RFSA2614tr13 13? reel with 2500 pieces RFSA2614pck-410 50mhz to 4000mhz pcba with 5-piece sample bag
2 of 9 RFSA2614 ds110126 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com . absolute maximum ratings parameter rating unit supply voltage 5.5 v dc dc supply current 15 ma dc power dissipation 83 mw max rf input power 27 dbm operating temperature (t case ) -40 to +85 c storage temperature -40 to +150 c junction temperature 150 c esd rating (hbm) class 1b moisture sensitivity level msl1 parameter specification unit condition min. typ. max. frequency range 50 4000 mhz insertion loss 1.6 1.9 db 500mhz, 0db attenuation 1.7 db 850mhz, 0db attenuation 2.1 db 2140mhz, 0db attenuation 2.2 2.8 db 2700mhz, 0db attenuation 2.8 db 3800mhz, 0db attenuation gain control range 31.5 db 0.5db step size step accuracy (0.15+5.0% attenuation setting) db iip3 >49 dbm 700mhz to 2700mhz, states 0 thru 27.5db iip3 >45 dbm 700mhz to 2700mhz, states 28 thru 31.5db input p1db >27 dbm 700mhz to 2700mhz, all states return loss >18 db 700mhz to 2700mhz, all states control interface 6 bit parallel interface settling time 200 ns t rise , t fall (10%/90% rf) switching speed 200 ns t on , t off (50% ctl to 10%/90% rf) supply voltage (v dd ) 3.0 5.0 5.25 v typical performance based on 5v opreation. supply current 3.5 ma control voltage (v ctl )0 0.8vlow 2.0 v dd vhigh notes: 1. v dd =5v, v ctl =3v, t=25c 2. broadband application circuit (with acg capacitors) 3. iip3 measured with 1mhz spacing, p in =4dbm/tone for frequency<300mhz, p in =10dbm/tone for frequency>300mhz caution! esd sensitive device. exceeding any one or a combination of the absolute maximum rating conditions may cause permanent damage to the device. extended application of absolute maximum rating conditions to the device may reduce device reliability. specified typical perfor- mance or functional operation of the device under absolute maximum rating condi- tions is not implied. rohs status based on eudirective2002/95/ec (at time of this document revision). the information in this publication is believed to be accurate and reliable. however, no responsibility is assumed by rf micro device s, 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.
3 of 9 RFSA2614 ds110126 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com . typical broadband applicat ion circuit performance (with acg capacitors) -4.0 -3.5 -3.0 -2.5 -2.0 -1.5 -1.0 -0.5 0.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 s21 (db) frequency (ghz) gain versus frequency, reference state (0db) 85c 25c -40c -35.0 -30.0 -25.0 -20.0 -15.0 -10.0 -5.0 0.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 s21 (db) frequency (ghz) normalized attenuation, major states 0.5db 1db 2db 4db 8db 16db 31.5db -30 -25 -20 -15 -10 -5 0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 s22 (db) frequency (ghz) rf2 rl versus frequency, major states 0db 0.5db 1db 2db 4db 8db 16db 31.5db -30 -25 -20 -15 -10 -5 0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 s11 (db) frequency (ghz) rf1 rl versus frequency, major states 0db 0.5db 1db 2db 4db 8db 16db 31.5db -20 -10 0 10 20 30 40 50 60 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 s21 (db) frequency (ghz) relative phase, major states 0.5db 1db 2db 4db 8db 16db 31.5db 35 40 45 50 55 60 0.0 0.5 1.0 1.5 2.0 2.5 3.0 iip3 (dbm) frequency (ghz) input ip3 versus frequency, all states, 25c states 28 thru 31.5db
4 of 9 RFSA2614 ds110126 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com . typical broadband applicat ion circuit performance (with and without acg capacitors) -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 step error (db) frequency (ghz) worst case step error between successive states (w/acg caps) -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 step error (db) frequency (ghz) worst case step error between successive states (no acg caps) -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 step error (db) frequency (ghz) step error versus frequency, all states (w/acg caps) -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 step error (db) frequency (ghz) step error versus frequency, all states (no acg caps) -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 048121620242832 step error (db) attenuation state (db) step error versus attenuation (w/acg caps) 450 mhz 150 mhz 850 mhz 1 ghz 2 ghz 2.7 ghz 3.3 ghz 3.8 ghz -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 048121620242832 step error (db) attenuation state (db) step error versus attenuation (no acg caps) 850 mhz 1 ghz 2 ghz 2.7 ghz 3.3 ghz 3.8 ghz
5 of 9 RFSA2614 ds110126 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com . truth table control bit relative gain setting c16c8c4c2c1c0.5 111111max gain 111110-0.5db 111101-1db 111011-2db 110111-4db 101111-8db 011111-16db 000000-31.5db logic voltage levels state logic low 0v to 0.8v high 2.0v to 5.0v
6 of 9 RFSA2614 ds110126 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com . pin function description 1nc no internal connection. evb can be ground or no connect. 2vdd power supply. 3nc no internal connection. evb can be ground or no connect. 4rf1 rf port. external dc block required. 5nc no internal connection. evb can be ground or no connect. 6acg ac ground connection for operation below 500mhz. 7acg ac ground connection for operation below 500mhz. 8acg ac ground connection for operation below 500mhz. 9acg ac ground connection for operation below 500mhz. 10 acg ac ground connection for operation below 500mhz. 11 acg ac ground connection for operation below 500mhz. 12 nc no internal connection. evb can be ground or no connect. 13 acg ac ground connection for operation below 500mhz. 14 nc no internal connection. evb can be ground or no connect. 15 rf2 rf port. external dc block required. 16 nc no internal connection. evb can be ground or no connect. 17 nc no internal connection. evb can be ground or no connect. 18 nc no internal connection. evb can be ground or no connect. 19 d5 16 db control bit. 20 d4 8db control bit. 21 d3 4db control bit. 22 d2 2db control bit. 23 d1 1db control bit. 24 d0 0.5db control bit. epad gnd dc and rf ground. must be soldered to evb ground plane over a bed of vias for thermal and rf performance.
7 of 9 RFSA2614 ds110126 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com . evaluation board assembly drawing j100 c20 c19 j1 rf1 j99 r8 c11 j2 rf2 c025 sa26x4410(c) vdd gnd c05/data c1 c2/le c4/clk c8/pup c16 15.5mil line c1 c2 c3 c4 c5 c6 c7 c9 c12 c13 c14 c15 c16 p1 u1 c17 c18 r1 r2 r3 r4 r5 r6 r7 c8
8 of 9 RFSA2614 ds110126 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com . evaluation board schematic (with acg capacitors)
9 of 9 RFSA2614 ds110126 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com . evaluation board bill of materials package drawing description reference designator manufacturer manufacturer's p/n pcb sa26x4410(c) cap, 680pf, 10%, 50v, x7r, 0402 c13, c15, c16, c17 murata grm155r71h681ka01e cap, 470pf, 10%, 50v, x7r, 0402 c11, c12, c19, c20 murata grm155r71h471ka01e cap, 1000pf, 10%, 50v, x7r, 0402 c7 taiyo yuden (usa), inc. rm umk105bj102kv-f res, 0 ? , 0402 r1-r6. r8 kamaya, inc rmc1/16sjpth dni r7, c1-c6, c8, c9, c14, c18-c20 conn, sma, end lnch, univ, hyb mnt, flt j1, j2, j99, j100 heilind electronics per mat-21-1038 conn, hdr, st, plrzd, 9-pin p1 itw pancon mpss100-9-c RFSA2614sb u1 rfmd RFSA2614 4. 00 00 .050 4 .0 00 0. 050 by marking pin 1 dot pin #1 iden tific ation chamfer 0.300 x 45 0. 40 00 . 050 2. 70 00 .0 50 exp.d ap 2 .7 00 0. 050 exp.dap 0.500 bsc 0. 25 00 .0 50 0.000-.050 sa2614 top view yyww side view 2.500 ref. bottom view .203 ref. .8500.050 trace code yyww = date code, where yy=year, ww=week trace code to be assigned by assembly subcon
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