To Download RF5388 Datasheet File

3 of 16 RF5388 ds100622 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, cont. power supply 3.0 3.3 3.6 v paen_g voltage 2.8 2.85 2.9 v paen_a is in the high state (on) -0.2 +0.2 v paen_g is in the off state (off) switch voltages 3.0 3.6 v switch voltage in the high state. 0 0.2 v switch voltage in the low state. input impedance 50 ? output impedance 50 ? stability output vswr 4:1 stable, max spurious -47dbm ruggedness output vswr 10:1 no damage, conditions: max operating voltage, max input power second harmonic -43 dbm freq=2400mhz to 2500mhz at 18dbm p out , rbw=1mhz, average detector tested with 1mbps ieee802.11b/g spectral mask per fcc part 15.205 -43 dbm amplifier set up for best ieee802.11g perfor- mance; f c =2412mhz; rf p out =tbddbm; ieee802.11b cck 11mbps modulation, t=+25c, measured at f c -22mhz ieee802.11b/g spectral mask per fcc part 15.205 -43 dbm amplifier set up for best ieee802.11g perfor- mance; f c =2462mhz; rf p out =tbddbm; ieee802.11b cck 11mbps modulation, t=+25c, measured at f c +22mhz turn-on time 0.5 1.0 ? sec output stable to within 90% of final gain turn-off time 0.5 1.0 ? sec output stable to within 90% of final gain 5.0ghz transmit t=+25c, v cc (a)=3.3v, paen_a=2.85v, freq=4.9ghz to 5.85ghz, unless otherwise noted. compliance ieee802.11a ieee802.11j fcc cfr 15.247, 0.205, 0.209 frequency 4.9 5.85 ghz output power 16 dbm with a standard ieee802.11a waveform, ofdm, 54mbits/s, 64 qam evm* 4 6 % at 16dbm output power, rms, mean with a standard ieee802.11a waveform, ofdm, 54mbits/s, 64 qam at rated output power output power 13 dbm at 13dbm, 11g output power, with a standard ieee802.11a waveform, ofdm, 54mbits/s, 64 qam evm 2 % at 13dbm, 11g output power, with a standard ieee802.11a waveform, ofdm, 54mbits/s, 64 qam gain 23 25 db gain variance 2.0 db power detect voltage range 0.7 1.5 tbd v at p out range of 0dbm to 16dbm with a stan- dard ieee802.11a waveform. output resistance 10 k ? output capacitance 1 pf bandwidth 8 mhz
4 of 16 RF5388 ds100622 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. 5.0ghz transmit, cont. sensitivity >10dbm 25 mv/db 0

5 of 16 RF5388 ds100622 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 receive compliance ieee802.11b ieee802.11g fcc cfr 15.247, 0.205, 0.209 frequency 2.4 2.5 ghz insertion loss 2.3 db spdt switch+diplexer noise figure 2.3 db spdt switch+diplexer passband ripple -0.3 +0.3 db output return loss -10 db current consumption 30 ? a switch leakage current switch voltages 3.0 3.6 v switch voltage in the high state. 0 0.2 v switch voltage in the low state. 5.0ghz receive compliance ieee802.11a ieee802.11j fcc cfr 15.247, 0.205, 0.209 frequency 4.9 5.85 ghz receive gain 9 db noise figure 4.5 4.9 db spdt switch+diplexer input p1db -5 dbm input ip3 +5 dbm passband ripple 1 db output return loss -10 db current consumption 15 ma switch leakage current 30 ua lna v cc 3.0 3.3 3.6 v lna v cc is in the high state -0.2 +0.2 v lna v cc is in the low state switch voltages 3.0 3.6 v switch voltage in the high state. 0 0.2 v switch voltage in the low state. * the evm specification includes a 0.5% to 0.7% source evm floor.
6 of 16 RF5388 ds100622 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 interface schematic 1lna vcc 5ghz lna input voltage supply. 2gnd ground connection. 3gnd ground connection. 4pa en_g bias voltage for the 802.11b/g pa. internally decoupled port with approximately 100 pf. 5gnd ground connection. 6tx_g rf input for the 802.11b/g pa. input is matched to 50 ? and dc block is pro- vided internally. 7gnd ground connection. 8tx_a tx rf input for the 802.11a pa. input is matched to 50 ? and dc block is pro- vided internally. 9gnd ground connection. 10 pa en_a bias voltage for the 802.11a pa. internally decoupled port with approximately 100 pf. 11 gnd ground connection. 12 gnd ground connection. 13 gnd ground connection. 14 vcc_g supply voltage for the 11b/g amplifier. requires external decoupling capacitors for best performance. 15 vcc_a supply voltage for the 11a amplifier. requires external decoupling capacitors for best performance. 16 vcc_g supply voltage for the 11b/g amplifier. requires external decoupling capacitors for best performance. 17 vcc_a supply voltage for the 11a amplifier. requires external decoupling capacitors for best performance. 18 vcc_a supply voltage for the 11a amplifier. requires external decoupling capacitors for best performance. 19 pdet_a power detector voltage for the 802.11a pa. pdetect voltage varies with output power. may need external decoupling capacitor for module stability. may need resistive voltage divider to bring output voltage to desired level. 20 pdet_g power detector voltage for the 802.11b/g pa. pdetect voltage varies with output power. may need external decoupling capacitor for module stability. may need resistive voltage divider to bring output voltage to desired level. 21 gnd ground connection. 22 gnd ground connection. 23 nc no connect. 24 gnd ground connection. 25 vcc_g supply voltage for the 11b/g amplifier. requires external decoupling capacitors for best performance. 26 vcc_g supply voltage for the 11b/g amplifier. requires external decoupling capacitors for best performance. 27 sw1 switch control port. (see switch truth table.) 28 ant antenna port. this port is matched to 50 ? and dc block is not provided inter- nally. 29 gnd ground connection. 30 nc no connect. 31 sw2 switch control port. (see switch truth table.) 32 gnd ground connection. 33 gnd ground connection. 34 gnd ground connection.
7 of 16 RF5388 ds100622 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com . switch truth table package drawing pin function description interface schematic 35 gnd ground connection. 36 rx_g receive port for 802.11b/g band. internally matched to 50 ? and dc block is not provided internally. 37 gnd ground connection. 38 rx_a receive port for 802.11a band. internally matched to 50 ? and dc block is pro- vided internally. 39 gnd ground connection. 40 gnd ground connection. pkg base gnd ground connection. the back side of the package should be connected to ground plane through as short a connection as possible (e.g., pcb vias under the device are recommended). mode # description sw1 sw2 pa en_a pa en_g lna en 1transmit, 2.4ghzh l l h l 2 receive, 2.4ghz l h l l l 3transmit, 5.0ghzh l h l l 4 receive, 5.0ghz l h l l h dimensions in mm. shaded lead is pin 1. c ab 0.10 0.28 0.18 4.50 4.30 0.50 0.30 0.50 4.50 4.30 pin 1 id 5.75 0.55 0.45 typ. 5.75 6.00 2 plcs 0.10 c b 6.00 a r0.2 max 0.90 0.70 0.70 0.65 0.05 0.01 seating plane c 0.10 c 0.08 c
8 of 16 RF5388 ds100622 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 (top view) lna vcc gnd gnd gnd pa en_g tx_g 1 3 4 5 7 8 11 16 12 13 17 18 14 9 10 2 6 15 19 20 21 23 24 25 27 28 31 36 32 33 37 38 34 29 30 22 26 35 39 40 tx_a pa en_a gnd gnd gnd gnd gnd gnd vcc_g pdet_a pdet_g gnd nc gnd vcc_g vcc_g sw1 ant nc gnd sw2 gnd gnd rx_g gnd gnd gnd rx_a vcc_a vcc_g vcc_a vcc_a gnd gnd
9 of 16 RF5388 ds100622 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com . application schematic lna_a c6 18 pf pa en_g c13 18 pf c16 4.7 pf c21 8.2 pf c1 10 pf sw2 c4 5.6 pf c26 1 nf vcc c7 0.5 pf sw1 c5 10 pf c20 1 nf vcc c17 1 nf c18 1 uf l2 5.6 nh pa en_a l3 0 ? c24 1 nf r7 6.8 ? l1 5.6 nh c22 1 uf r6 56 ? c25 4.7 ? f pdg c14 18 pf pda c19 18 pf c3 1 nf rx_a tx_g tx_a ant rx_g c27 8.2 pf 1 3 4 5 6 7 19 18 11 15 20 12 13 16 17 14 8 9 2 10 22 21 23 25 24 26 28 27 29 30 32 33 40 36 31 39 38 35 34 37 notes: low band recommendations 1. in general, it is recommended to follow the evaluation board layout rules and component placements. 2. c26 needs to be placed as close as possible to pins 25 and 26 for best linearity. 3. c27 placement is critical to provide 2 nd harmonic filtering (please see evaluation board layout). 4. c16 placement should be as close as possible to pin 14. high band 1. c18 should be placed close to pin 17 for best linearity. 2. depending on the layout, r7, r6, and r5 values can be changed to optimize performance. 3. the value and placements of c7 and c4 can be optimized based on the layout for best performance. general note depending on the layout, c20, c24, c11, l3, c2, c3, c6, c13 can all be unused without affecting the performance. it is recommended that the footprints be added on first layout, and once the design is proven they can be eliminated to reduce the component count. 50 ? ? strip 50 ? ? strip 50 ? ? strip 50 ? ? strip 50 ? ? strip 50 ? ? strip r2 12 ? r5 12 ? r4 1 k ? c9 1 nf c11 n/u r3 1 k ? c2 n/u r1 1 k ? 50 ? ? strip
10 of 16 RF5388 ds100622 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 3 4 5 6 7 19 18 11 15 20 12 13 16 17 14 8 9 2 10 22 21 23 25 24 26 28 27 29 30 32 33 40 36 31 39 38 35 34 37 pa en_g c3 1 nf lna_a j1 tx_g j4 tx_a c13 18 pf c16 4.7 pf c21 8.2 pf c27 8.2 pf c7 0.5 pf sw1 r5 12 ? c15 n/u vcc c17 1 nf c18 1 uf l2 5.6 nh pa en_a r3 1 k ? c24 1 nf r7 6.8 ? l1 5.6 nh c22 1 uf r6 56 ? c20 1 nf pdg c14 18 pf pda c19 18 pf c6 18 pf c26 1 nf c8 n/u c5 10 pf j3 ant r2 12 ? c25 4.7 uf 50 ? ? strip 50 ? ? strip c23 n/u r4 1 k ? vcc l3 0 ? c9 1 nf c11 n/u c12 n/u 50 ? ? strip 50 ? ? strip c1 10 pf sw2 c4 5.6 pf 50 ? ? strip 50 ? ? strip c2 n/u r1 1 k ? 50 ? ? strip j5 rx_a j2 rx_g p2 1 2 3 4 5 6 con6 p2-4 pda p2-3 pdg gnd p2-5 vcc p2-2 sw1 p2-1 sw2 p1 5 4 3 2 1 con5 p1-5 lna_a p1-4 n/c gnd p1-1 pa_ena p1-2 pa_eng
11 of 16 RF5388 ds100622 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 layouts board size 1.5? x 1.5? board thickness 0.032?, board material fr-4, multi-layer
12 of 16 RF5388 ds100622 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 RF5388 is a single-chip dual-b and integrated front-end module (fem) for hi gh performance wlan applications in the 2.5ghz and 5ghz ism bands. the RF5388 addresses the need fo r aggressive size reduction for a typical 802.11a/b/g rf front-end design and greatly redu ces the number of components outside of the co re chipset thus minimi zing the footprint and assembly cost of the overall 802.11a/b/ g/n solution. the RF5388 contains integrated pa's for 2.5ghz and 5ghz, diplexers, tx/rx switch, lna for the 5.0ghz receive band, matching components, some bypass capacitors, built-in power detector for both bands, and filters for transmit and receive paths. the RF5388 is packaged in a 40- pin, 6mmx6mmx0.9mm qfn pack- age with backside ground which greatly minimizes next level board space and allows for simplified integration. the RF5388 is designed primarily for ieee 802.11 b/g/a/n wlan applications where the availa ble supply voltage and current are limited. the RF5388 has one transmit path for a/b/g operation but it has two power amplifiers, one for the low band (b/g) and one for the high band (11a). the RF5388 re quires a single posi tive supply voltage (v cc ), positive current control bias (paen) supply for each band, and a positive supply for switch control to simplify bias requ irements. the RF5388 fem also has built in power detectors for both 11b/g pa and 11a pa. all inputs and outputs are internally matched to 50 ? . 802.11b/g transmit path the RF5388 low band power amplifier operates at frequencies betw een 2.4ghz to 2.5ghz and has a typical gain of 26db and delivers 18dbm typical output power under 54mbps ofdm modu lation meeting the specified error vector magnitude (evm) and >20dbm under 11mbps cck modulation meeting the spectral mask. the RF5388 requires a single positive supply of 3.0v to 3.6v to operate at full specifications. current control optimization for the 802.11b/g band is provided through one bia s control input pin (paen_g). the paen_g pin requires a regulated supply to maintain nominal bias current. in general, higher paen_g voltage produce higher linear output power, higher operating current and higher gain but this voltage should be set in the range that it is specified. second and third harmonic filter ing is provided on the die so that the second and third harmoni cs level are well below -41.3dbm and passes the fcc restricted band requirements. for best performance of the low band transmit path care has to be taken with the placement and values of some of the com- ponents around the fem. we recommend that the layout of the ev aluation board should be copied as close as possible to pre- vent any performance degradation. from one layout to another, the space and parts placement can change therefore, these are important recommendations one has to keep in mind (please refer to the evaluation board schematic): ? for best linearity c26 and c16 should be placed as close to the fem as possible. ? for best harmonic rejection, the combination of c26, c27, c9, l3, c11, and c12 placement and values are important. it is recommended to follow the evaluation board layout for best performance. also the value and placement of c7, c8, c2, and c4 are important for harmonic rejection so care has to be taken on the placement and values of these parts. ? all rf transmission lines should be as close as possible to 50 ? no matter what the stack is and what board material is used. ? we recommend that you contact rfmd application support to review your schematics and layout to provide recommenda- tions. 802.11a transmit path: the RF5388 high band power amplifier operates at frequencies between 4.9ghz to 5.85ghz an d has a typical gain of 26db and delivers 16dbm typical output power under 54mbps ofdm modulation meeting the specified evm. the RF5388 requires a single positive supply of 3.0v to 3.6v to operate at full sp ecifications. current control optimization for the 802.11a band i s provided through one bias control input pin (paen_a). the paen_a pin requires a regulated supply to maintain nominal bias current. in general, higher paen_a voltage produce higher linear output power, higher operating current and higher gain but this voltage should be set in the range that it is specified as per the data sheet. second and third harmonic filtering is pro vided on the die so that the second and third harmonics level are well below -30dbm for the bands that are not restricted by the fcc and <-41.3dbm for bands that are restricted by the fcc.
13 of 16 RF5388 ds100622 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com . for best performance of the high band tran smit path care has to be taken with the placement and values of some of the com- ponents around the fem. we recommend that the layout of the ev aluation board should be copied as close as possible to pre- vent any performance degradation. from one layout to another, the space and parts placement can change therefore, these are important recommendations one has to keep in mind (please refer to the evaluation board schematic): ? for best linearity, the combination of components on pins 14 , 17, and 18 should be copied as per the evaluation board. the placement of these components should be as close to the fem as possible. ? all rf transmission lines should be as close as possible to 50 ? . ? we recommend that you contact rfmd application support to review your layout and to provide recommendations. 802.11b/g receive path the 802.11b/g path has 50 ? impedance with a nominal insertion loss and noise figure of 2db. the rx port return loss is -10db typical. depending on the application, if filtering is re quired beyond what the RF5388 can achieve then additional exter- nal filters will need to be added outside of the RF5388. 802.11a receive path the 802.11a path has 50 ? impedance with a nominal gain of 9db and 4.5db typical noise figure pin to pin. the rx port return loss is -10db typical. depending on the application, if filtering is required beyond what the RF5388 can achieve then additional external filters will need to be added outside of the RF5388. biasing instruction for tx measurements: ? connect (tx_a or tx_g) to rfin from the signal generator and ant to rfout to the signal analyzer. ? terminate all unused ports to 50 ? . ? connect gnd first and then the bias pins (v cc ) which is common between v cc-a and v cc-g but make sure the v cc is off at this point. ? connect switch control pins (sw1 and sw2) with all set to 0v. ? set compliance on paen_a / paen_g to <10 ma. ?set compliance on v cc to <300ma. ? set sw1=highv or equal to v cc and turn on. ? connect sw2 to gnd for both 11a and 11g tx operation. ? set vcc = 3.30v and turn on. ? set paen_a / paen _g = 2.85v and turn on. with no rf drive the part should draw ~ 100 -130ma quiescent current for either 11a or 11g bands. ? turn rf signal on from the signal generator. ? perform measurements. ? follow reverse procedure to turn part off. ? max rfin power allowed is +5dbm.
14 of 16 RF5388 ds100622 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 i_paen_g versus p out @ v cc =3.3v, paen_g=2.85v, and @ 25c 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 p out (dbm) i_paen_g (ma) 2.4ghz 2.45ghz 2.5ghz typical p det versus p out @ v cc =3.3v, paen_g=2.85v and @ 25c 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 p out (dbm) p det (v) 2.4ghz 2.45ghz 2.5ghz typical gain versus p out @ v cc =3.3v, paen_g=2.85v, and @ 25c 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 30.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 p out (dbm) gain (db) 2.4ghz 2.45ghz 2.5ghz typical i cc versus p out @ v cc =3.3v, paen_g=2.85v, and @ 25c 0.0 20.0 40.0 60.0 80.0 100.0 120.0 140.0 160.0 180.0 200.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 p out (dbm) i cc (ma) 2.4ghz 2.45ghz 2.5ghz typical evm versus p out @ v cc =3.3v, paen_g=2.85v, and @ 25c 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 p out (dbm) evm (%) 2.4ghz 2.45ghz 2.5ghz
15 of 16 RF5388 ds100622 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 i_paen_a versus p out @ v cc =3.3v, paen_a=2.85v, and @ 25c 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 p out (dbm) i_paen_a (ma) 4.9ghz 5.4ghz 5.85ghz typical p det voltage versus p out @ v cc =3.3v, paen_a=2.85v, and @ 25c 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 p out (dbm) p det (v) 4.9ghz 5.4ghz 5.85ghz typical gain versus p out @ v cc =3.3v, paen_a=2.85v, and @ 25c 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 30.0 32.0 34.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 p out (dbm) gain (db) 4.9ghz 5.4ghz 5.85ghz typical i cc versus p out @ v cc =3.3v, paen_a=2.85v, and 25c 100.0 110.0 120.0 130.0 140.0 150.0 160.0 170.0 180.0 190.0 200.0 210.0 220.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 p out (dbm) i cc (ma) 4.9ghz 5.4ghz 5.85ghz typical evm versus p out @ v cc =3.3v, paen_a=2.85v, and @ 25c 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 p out (dbm) evm (%) 4.9ghz 5.4ghz 5.85ghz
16 of 16 RF5388 ds100622 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com .

▲Up To Search▲   

All Rights Reserved © IC-ON-LINE 2003 - 2022