1 of 12 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 rf mems ldmos rx out gnd tx in vreg pdetect vcc vcc vcc gnd ant gnd bt c_bt c_tx c_rx 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 sp3t 2f0 filter nc pdetect coupler rf5325 3.3v, 2.4ghz 802.11b/g/n wifi front end module the rf5325 provides an integrated solution in a single front end module (fem) for wifi 802.11b/g/n and bluetooth ? systems. the ultra small form factor and integrated matching greatly reduces the number of external components and layout area in the cu stomer application. this simplifies the total front end solution by reducing the bill of materials, system foot- print, and manufacturability cost. the integrated sp3t switch of the rf5325 is capable of receiving wifi and bluetooth ? simultaneously. the device is provided in a 3.0mmx3.0mmx0.5mm, 16-pin package. this module meets or exceeds the rf front end needs of ieee802.11b/g/n wifi rf systems. features ? integrated 2.5ghz b/g/n amplifier, sp3t switch, power detector coupler ? single supply voltage 3.0v to 4.5v ? p out =18dbm, 11g, ofdm @ <4% evm, 20dbm 11b meet- ing 11b spectral mask applications ? ieee802.11b/g/n wifi solu- tions ? 2.5ghz ism band solutions ? portable battery-powered equipment rf5325sq standard 25 piece bag RF5325SR standard 100 piece reel rf5325tr7 standard 2500 piece reel rf5325pck-410 fully assembled evaluation board tuned for 2.4ghz to 2.5ghz and 5 loose samples ds110618 ? ? package style: qfn, 16-pin, 3.0mmx3.0mmx0.5mm
2 of 12 rf5325 ds110618 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 dc supply voltage 5.0 v dc supply current 240 ma full specification temp range (full spec. compliant) -15 to +75 c extreme operating (reduced performance) +75 to +85 -30 to -15 c storage temperature -40 to +150 c antenna port nominal impedance 50 ? maximum tx input power for 11b/g (no damage) +5 dbm moisture sensitivity msl2 parameter specification unit condition min. typ. max. 2.4ghz transmit parameters compliance ieee802.11b, ieee802.11g/n, fcc cfg 15.247, .205, .209 conditions specifications met across v cc , v reg , and tem- perature unless noted otherwise. frequency 2.4 2.5 ghz output power 11g 17 dbm v cc > 3.3v, 54mbps, ofdm, 64qam meeting evm requirement 11b 20.5 dbm v cc > 3.3v, measured at 1mbps meeting acp1/acp2 requirements evm* 3.0 4.0 % p out(g) =17dbm, 54mbps ofdm v cc > 3.3v, 50 ? adjacent channel power acp1 -38 -32 dbc p out =20.5dbm, ieee802.11b, 1mbps cck modulation acp2 -56 -52 dbc p out =20.5dbm, ieee802.11b, 1mbps cck modulation gain 25 27 db gain variation v cc (instantaneous) 0.7 db/v v cc range: 3.0v to 4.5v frequency -0.5 +0.5 db 2.4ghz to 2.5ghz power detect voltage detect 0.1 1.4 v over p out range 0dbm to 23dbm input resistance 10 k ? input capacitance 5 pf sensitivity p out >10dbm 25 mv/db 0 3 of 12 rf5325 ds110618 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com . parameter specification unit condition min. typ. max. 2.4ghz transmit parameters, cont?d current consumption i cc 130 160 ma v cc =3.3v, v reg =2.85v, rf p out =17dbm, 11g, 50 ? 160 200 ma v cc =3.3v, v reg =2.85v, rf p out =20.5dbm, 11b, 50 ? idle 110 ma v cc =3.3v, v reg =2.85v, and rf=off i reg 25mav reg =2.85v typical leakage 5 10 ? av reg <0.2v power supply 3.0 3.3 4.5 v v reg 2.75 2.85 2.95 v pa on 0.2 v pa off input/output impedance 50 ? ruggedness no damage output vswr 10:1 maximum: operating voltage, input power, tem- perature stability output vswr 5:1 harmonics rbw=1mhz. measured at 1mbps. second -33 -27 dbm 11b cck bw=1mhz, p out =20.5dbm, 4.80ghz to 5.00ghz third -43 -40 dbm 11b cck bw=1mhz, p out =20.5dbm, 7.20ghz to 7.50ghz second -33 -30 dbm 11g 6mbps. ofdm, p out =17dbm, 4.80ghz to 5.00ghz third -48 -45 dbm 11g 6mbps. ofdm, p out =17dbm, 7.20ghz to 7. 5 0 g h z turn-on/off time 1.0 ? s output stable to within 90% of final gain antenna port impedance antenna port is a dc short to ground input 50 ? receive output 50 ? transmit switch control voltage low 0 0.2 v high 2.70 4.50 v switch control current 10 ? a per control line switch control speed 100 nsec esd human body model t bd v eia/jesd22-114a machine model tbd v eia/jesd22-115a
4 of 12 rf5325 ds110618 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com . isolation table switch control logic *the fem can simultaneously receive wifi and bluetooth ? in the wifi rx and bt rx mode. parameter specification unit condition min. typ. max. 2.4ghz receive parameters frequency 2.4 2.5 ghz insertion loss 0.5 0.8 db wifi rx mode only 3.5 4.0 db wifi rx and bt rx mode noise figure 0.5 0.8 db wifi rx mode only 3.5 4.0 db wifi rx and bt rx mode passband ripple -0.2 +0.2 db output return loss -9.6 db output impedance 50 ? no external matching current consumption 30 ? a bluetooth ? parameters frequency 2.4 2.5 ghz insertion loss 0.5 0.8 db sp3t switch, all unused ports terminated into their nominal impedance. bluetooth ? mode only 3.5 4.0 db wifi rx and bt rx mode passband ripple -0.2 +0.2 db input/output power 8 dbm output return loss -10 db output impedance 50 ? no external matching current consumption 30 ? a switch leakage current *the evm specification is obtained with a signal generator that has an evm level <0.7%. parameter min. typ. max. unit wifi rx to bt rx/tx 20 db wifi tx to bt rx/tx 20 db wifi rx to wifi tx 20 db wifi rx and bt rx mode 9 db c_rx c_tx c_bt mode llh bluetooth ? lhlwifi tx hllwifi rx h l h wifi rx and bt rx mode
5 of 12 rf5325 ds110618 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com . package drawing pin function description 1rx receive port for 802.11b/g/n band. internally matched to 50 ? . dc block provided. 2gnd ground. 3tx rf input for the 802.11b/g/n pa. input is matched to 50 ? and dc block is provided. 4vreg digital enable pin for the 802.11b/g/n pa. this is an active high control. an external bypass capacitor may be needed on the v reg line for decoupling purposes. 5pdetect power detector voltage for tx section. pdet voltage varies with output power. may need external decoupling capacitor for module stability. may need external circuitry to bring output voltage to desired level. 6vcc supply voltage for the bias circuit of the pa. add an external 56pf bypass capacitor for low frequency decou- pling. 7vcc supply voltage for the first stage of the pa. add an external 1nf capacitor for low frequency decoupling. 8n/c no connect. 9vcc supply voltage for the second stage of the pa. add an external 10nf capacitor fo r low frequency decoupling. 10 gnd ground. 11 ant port matched to 50 ? and is a dc short to ground. 12 gnd ground. 13 bt rf bidirectional port for bluetooth ? . input is matched to 50 ? and dc block is provided. 14 c_bt switch control port. see switch truth table for proper level. 15 c_tx switch control port. see switch truth table for proper level. 16 c_rx switch control port. see switch truth table for proper level.
6 of 12 rf5325 ds110618 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 out rx gnd tx vreg bt n/c pdet vcc vcc vcc gnd ant gnd c_bt c_tx c_rx 5 6 7 8 9 10 11 12 2 3 4 1 3 x 3 x 0.45 mm 16 15 14 13
7 of 12 rf5325 ds110618 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 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 vreg 50 ??? strip j2 rx out c_rx 50 ??? strip j4 ant 50 ??? strip j1 tx in r1 0 ? c1 330 pf pdetect c2 dnp vcc l1 3 nh c3 0.1 ? f l2 1.8 nh c4 1 ? f j3 bt c_bt c_tx p2-1 c_bt p2 hdr_1x4 4 3 2 1 p2-3 c_rx gnd p2-2 c_tx p1-4 vcc p1 hdr_1x4 1 2 3 4 p1-1 vreg gnd p1-3 pdetect vcc_b n/c vcc1 vcc2
8 of 12 rf5325 ds110618 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com . theory of operation the rf5325 provides an integrated solution for wifi 802.11 b/g/n and bluetooth ? systems. this single package front end module (fem) solution integrates the power amplifier (pa), power detector coupler, and harmonic filtering for the transmit side . the integrated sp3t switch is capable of simultaneous operation in wifi and bluetooth ? receive modes by setting two of the switch branches to a logic control "high." the integrated harmonic filtering and matching of the rf5325 fa cilitates deployment on the customer's board by offering 50 ? interface at all rf ports. for best results, the board layout fr om the evaluation board should be copied as closely as possible in particular the ground configuration underneath the fem and around the rf traces and decoupling capacitors. there is an indi- cator pin labeled p1 id that should be left as a no-connect on the pcb. this pin is directly connected to the ground pad of the ic. for best performance it is recommended that voltage and rf lines do not cross under this pin. gerber files of rfmd pcba designs can be provided upon request. the rf5325 fem can be connected directly to the battery without additional voltage regulators. this fem requires a single positive supply voltage (v cc ), positive current control bias (v reg ) supply, and a positive supply for switch controls. wifi transmit path the rf5325 has a typical gain of 28db from 2.4ghz to 2.5ghz, and delivers 18dbm typical output power under 54mbps ofdm modulation and 20dbm under 1mbps 11b modulation. the op erating voltage range to meet full specifications is from 3.0v to 4.5v. current control optimization for the 802.11b/g/n sy stems is provided through one bias control input pin (vreg). the v reg pin requires a regulated supply to maintain nomi nal bias current and a minimum voltage of 2.75v. out of band rejection the rf5325 contains basic filtering components to produce ba ndpass responses for the transmit path. due to space con- straints inside the module, filtering is limited to a few resonant poles. additional filters may need to be added outside the m od- ule depending upon the end-user's application. wifi and bluetooth ? receive paths the 802.11b/g/n and bluetooth ? paths are designed to interface in a 50 ? impedance environment to minimize insertion loss. the single-ended ports provide a nominal insertion loss of 0.5db and a vswr of 2:1. the rf5325 is designed so that the sp3t switch allows for simultaneous operation of wifi and bluetooth ? receive signals (refer to switch control table settings). in this configuration, the sp3t switch acts as a 3db splitter adding approximately 3db of loss to each of the receive paths.
9 of 12 rf5325 ds110618 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com . rf5325 biasing instructions: ? 802.11b/g/n transmit ? connect the fem to a signal generator at the input and a spectrum analyzer at the output. ?bias v cc to 3.3v first with v reg =0.0v ? refer to switch operational truth table to set th e control lines at the proper levels for wifi tx. ? turn on v reg to 2.85v (typ.). v reg controls the current drawn by the 802.11b/g/n power amplifier and the current should quickly rise to ~100ma20ma for a typical part but it varies based on the output power desired. be extremely careful not to exceed 3.4v on the v reg pin or the part may exceed device current limits. ? 802.11 b/g/n receive ? to receive wifi set the switch control lines per the truth table below. ? bluetooth ? receive ?to receive bluetooth ? set the switch control lines per the truth table below. switch control logic *the fem can simultaneously receive wifi and bluetooth ? in the wifi rx and bt rx mode. c_rx c_tx c_bt mode llh bluetooth ? lhlwifi tx hllwifi rx h l h wifi rx and bt rx mode
10 of 12 rf5325 ds110618 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 layout board size 1.5? x 1.5? board thickness 0.032?, board material fr-4, multi-layer
11 of 12 rf5325 ds110618 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com . rf5325 performance graphs rf5325 evm and gain vs. temperature and power (vcc=3.3v, vreg=2.85v, 64qam 54mbps, freq=2.45ghz, 10% duty cycle) 0 2 4 6 8 10 12 14 16 18 12345678910111213141516171819202122 ouput power (dbm) evm (%) 16 18 20 22 24 26 28 30 32 34 gain (db) evm ( - 15c ) evm ( + 25c ) evm ( + 65c ) gain ( - 15c ) gain ( + 25c ) gain (+65c) rf5325 evm and gain vs. supply voltage and power (vreg=2.85v, 64qam 54mbps, freq=2.45ghz, 10% duty cycle, temp=25c) 0 2 4 6 8 10 12 14 16 18 12345678910111213141516171819202122 ouput power (dbm) evm (%) 16 18 20 22 24 26 28 30 32 34 gain (db) evm (3.0v) evm (3.3v) evm (4.5v) gain (3.0v) gain (3.3v) gain (4.5v) rf5325 icc vs. temperature and power (vcc=3.3v, vreg=2.85v, 64qam 54mbps, freq=2450mhz, 10% duty cycle) 70 90 110 130 150 170 190 1 2 3 4 5 6 7 8 9 10111213141516171819202122 ouput power (dbm) icc (ma) temp = -15c temp = +25c temp = +65c rf5325 icc vs. frequency and power (vcc=3.3v, vreg=2.85v, 64qam 54mbps, temp=25c, 10% duty cycle) 70 90 110 130 150 170 190 1 2 3 4 5 6 7 8 9 10111213141516171819202122 ouput power (dbm) icc (ma) freq = 2.4ghz freq = 2.45ghz freq = 2.5ghz rf5325 icc vs. supply voltage and power (vreg=2.85v, 64qam 54mbps, freq=2.45ghz, temp=25c, 10% duty cycle) 70 90 110 130 150 170 190 1 2 3 4 5 6 7 8 9 10111213141516171819202122 ouput power (dbm) icc (ma) vcc = 3.0v vcc = 3.3v vcc = 4.5v
12 of 12 rf5325 ds110618 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com . rf5325 power detector voltage vs. temperature and power (vcc=3.3v, vreg=2.85v, 64qam 54mbps, freq=2450mhz, 10% duty cycle) 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 ouput power (dbm) pdetect voltage (v) temp = -15c temp = +25c temp = +65c rf5325 power detector voltage vs. frequency and power (vcc=3.3v, vreg=2.85v, 64qam 54mbps, temp=25c, 10% duty cycle) 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 ouput power (dbm) pdetect voltage (v) freq = 2.4ghz freq = 2.45ghz freq = 2.5ghz rf5325 power detector voltage vs. supply voltage and power (vreg=2.85v, 64qam 54mbps, freq=2.45ghz, temp=25c, 10% duty cycle) 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 ouput power (dbm) pdetect voltage (v) vcc = 3.0v vcc = 3.3v vcc = 4.5v
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