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matched broadband rf vga 400mhz to 2700mhz glitch-free tm , zero-distortion tm , rf vga 1 rev 3, april 2015 idtf0480nbgi datasheet g eneral d escription this document describes the specifications for the idtf0480 400 mhz to 2700 mhz rf digital variable ga in amplifier used in receiver, transmitter and other applications. idtf0480 rf dvga provides 13 db typical maximum gain (no attenuation) with 4 db noise figure and 23 db gain adjustment in 1 db steps designed to operate with a single 5 v supply. nominally, the device of fers +41 dbm output ip3 using 100 ma of i cc . this device is packaged in a 5x5 32pin thin qfn wi th 50 ohm singleended rf input and rf output impedances for ease of integration into the signal path lineup. c ompetitive a dvantage in many applications, digital step attenuators foll owed by rf amplifiers are used in the receive path. the idtf0480 rf dvga provides very high reliability by combining a silicon glitchfree tm dsa & a zero distortion tm rf amplifier in a single, compact qfn package. utilizing idts technology, the resultant rf vga provides +41 dbm oip3 performance across a very wide bandwidth of 400 mhz to 2700 mhz at approximately 100 ma of current. furthermore the device is internally matched so there is no need to optimize external matching elements. a pplications ? multimode, multicarrier receivers ? pcs1900 base stations ? dcs1800 base stations ? wimax and lte base stations ? umts/wcdma 3g base stations ? phs/pas base stations ? point to point infrastructure ? public safety infrastructure ? broadband repeaters ? gps receivers ? distributed antenna systems ? cable infrastructure ? digital radio f eatures ? 400 mhz C 2700 mhz ? < 1 db overshoot between gain transitions ? 13 db typical max gain ? 23 db gain range, 1 db gain step resolution ? excellent linearity +41 dbm oip3 ? noise figure 4 db ? i cc = 100 ma ? 1.3 ma standby current ? spi interface ? 50 input and output impedance ? broadband, internally matched ? gain increases vs. frequency to counteract system board losses ? 5x5 32pin tqfn package d evice b lock d iagram o rdering i nformation glitch-free tm glitch-free tm zero-distortion tm zero-distortion tm idt f0480nbgi8 0.75 mm height package green omit idt prefix rf product line tape & reel
matched broadband rf vga 400mhz to 2700mhz glitch-free tm , zero-distortion tm , rf vga 2 rev 3, april 2015 idtf0480nbgi datasheet a bsolute m aximum r atings parameter symbol min max units vcc to gnd v cc 0.3 +5.5 v spi data, spi csb, spi clk, logicctl v did 0.3 +3.6 v stby, band_select v cntl 0.3 v cc + 0.25 v r_bias1 i r1 +1.5 ma r_bias2 i r1 +0.8 ma rfin externally applied dc voltage v rfin +1.4 +3.6 v rfout externally applied dc voltage v rfout v cc 0.15 v cc + 0.15 v rf input power (rfin) applied for 24 hours maximum p in +22 dbm continuous power dissipation p diss 1.5 w junction temperature t j 150 c storage temperature range t st 65 150 c lead temperature (soldering, 10s) 260 c electrostatic discharge C hbm (jedec/esda js0012012) class 2 (2000 v) electrostatic discharge C cdm (jedec 22c101f) class c2 (500 v) stresses above those listed above may cause permane nt damage to the device. functional operation of th e device at these or any other conditions above those indicated in the operational section of this specification i s not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. p ackage t hermal and m oisture c haracteristics ja (junction C ambient) 40 c/w jc (junction C case) the case is defined as the expose d paddle 4 c/w moisture sensitivity rating (per jstd020) msl1
matched broadband rf vga 400mhz to 2700mhz glitch-free tm , zero-distortion tm , rf vga 3 rev 3, april 2015 idtf0480nbgi datasheet idtf0480 r ecommended o perating c onditions parameter symbo l conditions min typ max unit s supply voltage(s) v cc all vcc pins 4.75 5.25 v operating temperature range t case case temperature 40 +105 c rf freq range f rf operating range 400 2700 mhz rf source impedance z rfi single ended 50 rf load impedance z rf o single ended 50
matched broadband rf vga 400mhz to 2700mhz glitch-free tm , zero-distortion tm , rf vga 4 rev 3, april 2015 idtf0480nbgi datasheet idtf0480 s pecification see f0480 typical application circuit. specificatio ns apply when operated as an rf dvga, v cc = +5.00 v, t c = +25 c, max gain setting, output power = 0 dbm, z rfi = z rfo = 50 , unless otherwise noted. parameter symbol conditions min typ max units logic input high v ih jedec 3.3v logic 2.0 1 v logic input low v il jedec 3.3v logic 0.8 v logic input high v ih jedec 1.8v logic 1.1 v logic input low v il jedec 1.8v logic 0.63 v logic current i ih, i il stby, band_select -10 +10 a spi_ -4 +4 logic ctl -35 +35 supply current 3 i cc_lb low band configuration 100 ma i cc_mb mid band configuration 117 128 i cc_hb high band configuration 109 i cc_stby standby mode 1.3 1.7 startup time 50% of stby going low to gain within 1 db with no attenuation. 250 ns gain adjustment range g adj 23 db gain step g step 1 db max attenuator glitch attn g step from 15 to 16 db or 16 to 15 db 0.5 db gain settling time g st 50% of csb to 0.1 db of settled gain 500 ns serial clock speed 10 mhz csb to first serial clock rising edge a spi 3 wire bus. 50% of csb falling edge to 50% of clk rising edge. 10 ns serial data hold time b spi 3 wire bus. 50% of clk rising edge to 50% of data falling edge. 10 ns final serial clock rising edge to csb c spi 3 wire bus. 50% of clk rising edge to 50% of csb rising edge. 10 ns note 1: items in min/max columns in bold italics are guaranteed by test. note 2: items in min/max columns that are not bold/ italics are guaranteed by design characterization. note 3: during standby mode, spi is to be left on a nd previous state shall be maintained when device i s powered up.
matched broadband rf vga 400mhz to 2700mhz glitch-free tm , zero-distortion tm , rf vga 5 rev 3, april 2015 idtf0480nbgi datasheet idtf0480 s pecification - l owband p erformance see f0480 typical application circuit. specificati ons apply when operated as an rf dvga, v cc = +5.00 v, t c = +25 c, f rf = 900 mhz, band_select = lb setting, max gain sett ing, output power = 0 dbm, z rfi = z rfo = 50 , the evaluation board and connector losses are de embedded, unless otherwise noted. parameter symbol conditions min typ max units rf input return loss rl in_lb 15 db rf output return loss rl out_lb 20 db gain g max_lb 11.5 12.6 13.4 db g min_lb maximum attenuation -11.2 10.2 -9.4 g temp_lb variation over temperature 0.3 g var_lb max gain variation over frequency 5 0.1 step error g acc_lb between adjacent states 0.1 db absolute error g absacc_lb relative to maximum gain 0.2 db phase deviation g ph_adj_lb between adjacent states at maximum gain 1 deg noise figure nf lb 3.9 db nf lb_mg t case = +105 c 4.8 nf lb_rg 22 db attenuation 25.9 output third order intercept point oip3 _lb1 pout = 0 dbm/tone, 1 mhz tone separation 41.5 dbm oip3 _lb2 pout = 10 dbm/tone, 1 mhz tone separation 40.5 oip3 _lb3 pout = 0 dbm/tone, 1 mhz tone separation, worst case in the operating temperature range 39 41 oip3 _lb6db pout = 0 dbm/tone, 1 mhz tone separation with 6 db attenuation 41 output 1 db power compression op1db _lb 20.6 22.2 dbm output 0.2 db power compression op0.2db _lb 20 dbm output saturated power psat _lb 3 db compression 22.3 dbm reverse isolation rev iso_lb 18 db note 5: including frequency and ripple variations v alid within each individual 3gpp band.
matched broadband rf vga 400mhz to 2700mhz glitch-free tm , zero-distortion tm , rf vga 6 rev 3, april 2015 idtf0480nbgi datasheet idtf0480 s pecification - m idband p erformance see f0480 typical application circuit. specificati ons apply when operated as an rf dvga, v cc = +5.00 v, t c = +25 c, f rf = 2000 mhz, band_select = hb setting, max gain set ting, output power = 0 dbm, z rfi = z rfo = 50 , the evaluation board and connector losses are de embedded, unless otherwise noted. parameter symbol conditions min typ max units rf input return loss rl in_mb 13 db rf output return loss rl out_mb 17 db gain g max_mb 11.9 13.1 14.2 db g min_mb maximum attenuation -11 9.9 -8.7 g temp_mb variation over temperature 0.3 g var_mb max gain variation over frequency 5 0.1 step error g acc_mb between adjacent states 0.1 db absolute error g absacc_mb relative to maximum gain - 0.6 0.2 + 0.6 db phase deviation g ph_adj_mb between adjacent states at maximum gain 2 deg noise figure nf mb 4.5 db nf mb_mg t case = +105 c 5.5 5.9 nf mb_rg 22 db attenuation 26.7 28.2 output third order intercept point oip3 _mb1 pout = 0 dbm/tone, 1 mhz tone separation 38 41.5 dbm oip3 _mb2 pout = 10 dbm/tone, 1 mhz tone separation 42.5 oip3 _mb3 pout = 0 dbm/tone, 1 mhz tone separation, worst case in the operating temperature range 39 41.1 oip3 _mb6db pout = 0 dbm/tone, 1 mhz tone separation with 6 db attenuation 41.5 output 1 db power compression op1db _mb 22.2 dbm output 0.2 db power compression op0.2db _mb 18.5 dbm output saturated power psat _mb 3 db compression 22.7 dbm reverse isolation rev iso_mb 18 db
matched broadband rf vga 400mhz to 2700mhz glitch-free tm , zero-distortion tm , rf vga 7 rev 3, april 2015 idtf0480nbgi datasheet idtf0480 s pecification - h ighband p erformance see f0480 typical application circuit. specificati ons apply when operated as an rf dvga, v cc = +5.00 v, t c = +25 c, f rf = 2700 mhz, band_select = hb setting, max gain set ting, output power = 0 dbm, z rfi = z rfo = 50 , the evaluation board and connector losses are de embedded, unless otherwise noted. parameter symbol conditions min typ max units rf input return loss rl in_hb 12 db rf output return loss rl out_hb 15 db gain g max_hb 12.2 13.5 14.4 db g min_hb maximum attenuation -10.7 9.5 -8.4 g temp_hb variation over temperature 0.3 g var_hb max gain variation over frequency 5 0.1 step error g acc_hb between adjacent states 0.1 db absolute error g absacc_hb relative to maximum gain 0.2 db phase deviation g ph_adj_hb between adjacent states at maximum gain 3 deg noise figure nf hb 5 db nf hb_mg t case = +105 c 5.8 nf hb_rg 22 db attenuation 26.8 output third order intercept point oip3 _hb1 pout = 0 dbm/tone, 1 mhz tone separation 39.2 dbm oip3 _hb2 pout = 10 dbm/tone, 1 mhz tone separation 38.5 oip3 _hb3 pout = 0 dbm/tone, 1 mhz tone separation, worst case in the operating temperature range 35.5 36.7 oip3 _hb6db pout = 0 dbm/tone, 1 mhz tone separation with 6 db attenuation 39 output 1 db power compression op1db _hb 21.8 dbm output 0.2 db power compression op0.2db _hb 21.6 dbm output saturated power psat _hb 3 db compression 22.2 dbm reverse isolation rev iso_hb 18 db
matched broadband rf vga 400mhz to 2700mhz glitch-free tm , zero-distortion tm , rf vga 8 rev 3, april 2015 idtf0480nbgi datasheet s erial c ontrol m ode data is clocked in lsb first via serial mode. note the timing diagram below. note C the idtf0480 includes a clk inhibit feature designe d to minimize sensitivity to clk bus noise when the device is not being programmed. when csb is high (> v ih ), the clk input is disabled and serial data (data) is not clocked into the shift register. it is recommended that csb be pulled high (>v ih ) when the device is not being programmed. s erial r egister t iming d iagram : (note the timing spec intervals in blue ) s erial m ode d efault c ondition : when the device is first powered up it will default to the maximum attenuation setting as described below: figure 1 - spi timing diagram & default register settings
matched broadband rf vga 400mhz to 2700mhz glitch-free tm , zero-distortion tm , rf vga 9 rev 3, april 2015 idtf0480nbgi datasheet f0480 dvga a ttenuation word truth table (lsb = first in) the spi interface should be built up by an 8bit wo rd (defined as mosi) where 5 bits are used for atte nuation setting per the example shown below. bold indicates bits used for programming the attenuator; data bits 2 through 6. d7 (msb) d6 d5 d4 d3 d2 d1 d0 (lsb) attenuation setting x low low low low low x x insertion loss x low low low low high x x 1 db x low low low high low x x 2 db x low low high low low x x 4 db x low high low low low x x 8 db x high low low low low x x 16 db x high low high high low x x 22 db x high low high high high x x 23 db (max) x high high low low low x x 23 db (max) x high high low low high x x 23 db (max) x high high low high low x x 23 db (max) x high high low high high x x 23 db (max) x high high high low low x x 23 db (max) x high high high low high x x 23 db (max) x high high high high low x x 23 db (max) x high high high high high x x 23 db (max) s tandby truth table * parameter level function stby 0 volts or open circuit power on +5 volts power off * startup/power on requirements: spi shall be left on during standby mode. when the circuit is initially powered up (+5v applied on pi n 12/13), the default vga setting should be minimum gain (max att enuation setting). if the attenuator is programmed in standby mode, the programmed setting will be active when th e device is taken out of standby mode. spi logic level c ontrol - p in 11 parameter level function logicctl 3.3 volts or open circuit 3.3v logic 0 volts 1.8v logic
matched broadband rf vga 400mhz to 2700mhz glitch-free tm , zero-distortion tm , rf vga 10 rev 3, april 2015 idtf0480nbgi datasheet s uggested c5, r7, and r8 values for optimum performance ( unless otherwise noted in toc s ) band freq range (mhz) band select pin 15 r7 (k ) r8 (k ) c5 (pf) i cc (ma ) lowband 700 1100 lb (open) 2.2 9.1 9 100 midband 1100 2200 hb (gnd) 2.4 27 9 117 highband 2200 2700 hb (gnd) 2.67 75 6 109 broad band (p. 16 tocs) 400 2700 hb (gnd) 2.2 20 9 124 t ypical o perating c onditions unless otherwise noted for the toc graphs, the followi ng conditions apply ? vcc = 5.0 v ? pout = 0 dbm / tone ? 1 mhz tone spacing ? t case = 35 c, t amb = 25 c ? attn setting = 0 db (max gain) ? evkit losses (traces and connectors) fully de-embedd ed
matched broadband rf vga 400mhz to 2700mhz glitch-free tm , zero-distortion tm , rf vga 11 rev 3, april 2015 idtf0480nbgi datasheet t ypical o perating c onditions [ip3, c ompression ] (-1-) output ip3 [0 dbm/tone, 1m tone spacing, 0db attn] output ip3 [0 dbm/tone, 1m tone spacing, 11db attn] gain compression [900 mhz] output ip3 [0 dbm/tone, 10m tone spacing, 0 db attn] output ip3 [-7 dbm/tone, 1m tone spacing, 0db attn] phase compression [900 mhz] 16 20 24 28 32 36 40 44 48 52 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 2.7 40c / 5.25v / 0dbm / 1mhz / 0db 40c / 5.00v / 0dbm / 1mhz / 0db 40c / 4.75v / 0dbm / 1mhz / 0db 35c / 5.25v / 0dbm / 1mhz / 0db 35c / 5.00v / 0dbm / 1mhz / 0db 35c / 4.75v / 0dbm / 1mhz / 0db 105c / 5.25v / 0dbm / 1mhz / 0db 105c / 5.00v / 0dbm / 1mhz / 0db 105c / 4.75v / 0dbm / 1mhz / 0db rf frequency (ghz) output ip3 (dbm) mid-band configuration low-band configuration high-band configuration 16 20 24 28 32 36 40 44 48 52 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 2.7 40c / 5.25v / 0dbm / 1mhz / 11db 40c / 5.00v / 0dbm / 1mhz / 11db 40c / 4.75v / 0dbm / 1mhz / 11db 35c / 5.25v / 0dbm / 1mhz / 11db 35c / 5.00v / 0dbm / 1mhz / 11db 35c / 4.75v / 0dbm / 1mhz / 11db 105c / 5.25v / 0dbm / 1mhz / 11db 105c / 5.00v / 0dbm / 1mhz / 11db 105c / 4.75v / 0dbm / 1mhz / 11db rf frequency (ghz) output ip3 (dbm) mid-band configuration low-band configuration high-band configuration 2.8 2.4 2.0 1.6 1.2 0.8 0.4 0.0 0.4 0.8 14 15 16 17 18 19 20 21 22 23 24 40degc / 5.25v 40degc / 5.00v 40degc / 4.75v 35degc / 5.25v 35degc / 5.00v 35degc / 4.75v 105degc / 5.25v 105degc / 5.00v 105degc / 4.75v output power (dbm) gain delta (db) 16 20 24 28 32 36 40 44 48 52 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 2.7 40c / 5.25v / 0dbm / 10mhz / 0db 40c / 5.00v / 0dbm / 10mhz / 0db 40c / 4.75v / 0dbm / 10mhz / 0db 35c / 5.25v / 0dbm / 10mhz / 0db 35c / 5.00v / 0dbm / 10mhz / 0db 35c / 4.75v / 0dbm / 10mhz / 0db 105c / 5.25v / 0dbm / 10mhz / 0db 105c / 5.00v / 0dbm / 10mhz / 0db 105c / 4.75v / 0dbm / 10mhz / 0db rf frequency (ghz) output ip3 (dbm) mid-band configuration low-band configuration high-band configuration 16 20 24 28 32 36 40 44 48 52 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 2.7 40c / 5.25v / 7dbm / 1mhz / 0db 40c / 5.00v / 7dbm / 1mhz / 0db 40c / 4.75v / 7dbm / 1mhz / 0db 35c / 5.25v / 7dbm / 1mhz / 0db 35c / 5.00v / 7dbm / 1mhz / 0db 35c / 4.75v / 7dbm / 1mhz / 0db 105c / 5.25v / 7dbm / 1mhz / 0db 105c / 5.00v / 7dbm / 1mhz / 0db 105c / 4.75v / 7dbm / 1mhz / 0db rf frequency (ghz) output ip3 (dbm) mid-band configuration low-band configuration high-band configuration 40 36 32 28 24 20 16 12 8 4 0 4 8 12 14 15 16 17 18 19 20 21 22 23 24 40degc / 5.25v 40degc / 5.00v 40degc / 4.75v 35degc / 5.25v 35degc / 5.00v 35degc / 4.75v 105degc / 5.25v 105degc / 5.00v 105degc / 4.75v output power (dbm) phase delta (degrees)
matched broadband rf vga 400mhz to 2700mhz glitch-free tm , zero-distortion tm , rf vga 12 rev 3, april 2015 idtf0480nbgi datasheet toc s [c ompression , nf] (-2-) gain compression [2000 mhz] gain compression [2700 mhz] noise figure vs. temperature phase compression [2000 mhz] phase compression [2700 mhz] worst case nf vs. frequency [105c, 5.25v] 4.0 3.6 3.2 2.8 2.4 2.0 1.6 1.2 0.8 0.4 0.0 0.4 0.8 1.2 14 15 16 17 18 19 20 21 22 23 24 40degc / 5.25v 40degc / 5.00v 40degc / 4.75v 35degc / 5.25v 35degc / 5.00v 35degc / 4.75v 105degc / 5.25v 105degc / 5.00v 105degc / 4.75v output power (dbm) gain delta (db) 4.0 3.6 3.2 2.8 2.4 2.0 1.6 1.2 0.8 0.4 0.0 0.4 0.8 1.2 14 15 16 17 18 19 20 21 22 23 24 40degc / 5.25v 40degc / 5.00v 40degc / 4.75v 35degc / 5.25v 35degc / 5.00v 35degc / 4.75v 105degc / 5.25v 105degc / 5.00v 105degc / 4.75v output power (dbm) gain delta (db) 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 40 20 0 20 40 60 80 100 noise figure (db) case temperature (degc) 700mhz / lb 900mhz / lb 1700mhz / mb 2000mhz / mb 2300mhz / hb 2700mhz / hb 40 36 32 28 24 20 16 12 8 4 0 4 8 12 14 15 16 17 18 19 20 21 22 23 24 40degc / 5.25v 40degc / 5.00v 40degc / 4.75v 35degc / 5.25v 35degc / 5.00v 35degc / 4.75v 105degc / 5.25v 105degc / 5.00v 105degc / 4.75v output power (dbm) phase delta (degrees) 40 36 32 28 24 20 16 12 8 4 0 4 8 12 14 15 16 17 18 19 20 21 22 23 24 40degc / 5.25v 40degc / 5.00v 40degc / 4.75v 35degc / 5.25v 35degc / 5.00v 35degc / 4.75v 105degc / 5.25v 105degc / 5.00v 105degc / 4.75v output power (dbm) phase delta (degrees) 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 700 900 1100 1300 1500 1700 1900 2100 2300 2500 2700 noise figure (db) frequency (mhz) lb sn47 mb sn28 hb sn56
matched broadband rf vga 400mhz to 2700mhz glitch-free tm , zero-distortion tm , rf vga 13 rev 3, april 2015 idtf0480nbgi datasheet toc s [g ain , s- params without c5, attn e rror ] (-3-) gain vs. temperature and voltage s11 (device only) [t amb = 25c, v cc = 5.00 volts] s12 (device only) [t amb = 25c, v cc = 5.00 volts] s21 (device only) [t amb = 25c, v cc = 5.00 volts] s22 (device only) [t amb = 25c, v cc = 5.00 volts] inl (device only) [t amb = 25c, v cc = 5.00v] 6 7 8 9 10 11 12 13 14 15 16 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 2.7 40c / 5.25v / 0dbm / 1mhz / 0db 40c / 5.00v / 0dbm / 1mhz / 0db 40c / 4.75v / 0dbm / 1mhz / 0db 35c / 5.25v / 0dbm / 1mhz / 0db 35c / 5.00v / 0dbm / 1mhz / 0db 35c / 4.75v / 0dbm / 1mhz / 0db 105c / 5.25v / 0dbm / 1mhz / 0db 105c / 5.00v / 0dbm / 1mhz / 0db 105c / 4.75v / 0dbm / 1mhz / 0db rf frequency (ghz) gain (db) mid-band configuration low-band configuration high-band configuration 40 35 30 25 20 15 10 5 0 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 s 11 (db) rf frequency (ghz) 0db 1db 2db 3db 4db 5db 6db 7db 8db 9db 10db 11db 12db 13db 14db 15db 16db 17db 18db 19db 20db 21db 22db 23db 45 40 35 30 25 20 15 10 5 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 s 12 (db) rf frequency (ghz) 0db 1db 2db 3db 4db 5db 6db 7db 8db 9db 10db 11db 12db 13db 14db 15db 16db 17db 18db 19db 20db 21db 22db 23db 15 10 5 0 5 10 15 20 25 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 s 21 (db) rf frequency (ghz) 0db 1db 2db 3db 4db 5db 6db 7db 8db 9db 10db 11db 12db 13db 14db 15db 16db 17db 18db 19db 20db 21db 22db 23db 40 35 30 25 20 15 10 5 0 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 s 22 (db) rf frequency (ghz) 0db 1db 2db 3db 4db 5db 6db 7db 8db 9db 10db 11db 12db 13db 14db 15db 16db 17db 18db 19db 20db 21db 22db 23db 1.0 0.8 0.6 0.4 0.2 0.0 0.2 0.4 0.6 0.8 1.0 0 2 4 6 8 10 12 14 16 18 20 22 24 absolute attenuation error (db) attenuation setting (db) 0.7 ghz 0.9 ghz 1.7 ghz 1.9 ghz 2.3 ghz 2.7 ghz
matched broadband rf vga 400mhz to 2700mhz glitch-free tm , zero-distortion tm , rf vga 14 rev 3, april 2015 idtf0480nbgi datasheet toc s [p hase e rror , s- params with c5, s tability ] (-4-) phase delta (device only) [t amb = 25c, v cc = 5.00v] s11 (device +c5 cap ) [t amb = 25c, v cc = 5.00 volts] s12 (device +c5 cap ) [t amb = 25c, v cc = 5.00 volts] s21 (device +c5 cap ) [t amb = 25c, v cc = 5.00 volts] s22 (device +c5 cap ) [t amb = 25c, v cc = 5.00 volts] stability v. attn [see discusson on p.18] 40 60 80 100 120 140 160 180 0 2 4 6 8 10 12 14 16 18 20 22 24 s 21 phase (degrees) attenuation setting (db) 0.7 ghz 0.9 ghz 1.7 ghz 1.9 ghz 2.3 ghz 2.7 ghz 40 35 30 25 20 15 10 5 0 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 s 11 (db) rf freq (ghz) 0db attn 11db attn 23db attn 45 40 35 30 25 20 15 10 5 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 s 12 (db) rf freq (ghz) 0db attn 11db attn 23db attn 15 10 5 0 5 10 15 20 25 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 s 21 (db) rf freq (ghz) 0db attn 11db attn 23db attn 40 35 30 25 20 15 10 5 0 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 s 11 (db) rf freq (ghz) 0db attn 11db attn 23db attn 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 0 1 2 3 4 5 6 7 8 9 3 db 2 db 1 db 0 db frequency (ghz) k (stability factor) 25c ambient / 5.00v / hb configuration board losses (traces and connectors) are included
matched broadband rf vga 400mhz to 2700mhz glitch-free tm , zero-distortion tm , rf vga 15 rev 3, april 2015 idtf0480nbgi datasheet toc s [ more ip3, evk it l osses ] (-5-) oip3 vs. temperature [2.5 ghz, 5.00v] oip3 vs. output power [2.5 ghz, t amb = 85c] oip3 v. attn [2.5 ghz, t amb = 85c, pout = -5 dbm] oip3 vs. tone spacing [2.5 ghz, 5.00v] evkit losses [connector and traces] (rev 02 ro) oip3 vs. output power [2.7 ghz, f = 1 mhz] 11.4 11.8 12.2 12.6 13.0 13.4 13.8 14.2 14.6 34 36 38 40 42 44 46 48 50 45 30 15 0 15 30 45 60 75 90 105 55 40 25 10 5 20 35 50 65 80 95 gain (db) 1 mhz tone ? 10 mhz tone ? gain output ip3 (dbm) t case / t amb (degrees c) 120 114 108 102 96 90 84 78 72 66 60 0 6 12 18 24 30 36 42 48 54 60 13 11 9 7 5 3 1 1 3 5 im3 power (dbm) output ip3 (dbm) output power per tone (dbm) ip3 (dbm) ip3+ (dbm) im3 (dbm) im3 + (dbm) 120 114 108 102 96 90 84 78 72 66 60 0 6 12 18 24 30 36 42 48 54 60 0 2 4 6 8 10 12 14 16 18 20 im3 power (dbm) output ip3 (dbm) attenuation setting (db) ip3 (dbm) ip3+ (dbm) im3 (dbm) im3 + (dbm) 30 32 34 36 38 40 42 44 46 1 5 10 15 20 25 30 30degc tcase 30degc tcase 105degc tcase output ip3 (dbm) tone spacing (mhz) 1.0 0.8 0.6 0.4 0.2 0.0 0.2 0.6 1.0 1.4 1.8 2.2 2.6 3.0 3.4 3.8 4.2 input + output board loss input or output board loss frequency (ghz) loss (db) 10 15 20 25 30 35 40 45 50 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 25c / 5.00v / 0db attn 40c / 5.00v / 0db attn 105c / 5.00v / 0db attn output ip3 (dbm) output power per tone
matched broadband rf vga 400mhz to 2700mhz glitch-free tm , zero-distortion tm , rf vga 16 rev 3, april 2015 idtf0480nbgi datasheet toc s [b roadband c onfig ] (-6-) oip3 vs. t case & tone offset [0 db attn] oip3 vs. t case & tone offset [13 db attn] wideband oip2 [t amb = 25c, pout = -10 dbm/tone] oip3 vs. t case & tone offset [10 db attn] gain vs. t case & attn setting wideband oip2 [t amb = 25c, pout = 0 dbm/tone] 12 16 20 24 28 32 36 40 44 48 52 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 40c / 1mhz / 0db attn 40c / 5mhz / 0db attn 40c / 15mhz / 0db attn 35c / 1mhz / 0db attn 35c / 5mhz / 0db attn 35c / 15mhz / 0db attn 105c / 1mhz / 0db attn 105c / 5mhz / 0db attn 105c / 15mhz / 0db attn rf frequency (ghz) output ip3 (dbm) broad-band configuration r7 = 2.2k r8 = 20k c5 = 9pf 12 16 20 24 28 32 36 40 44 48 52 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 40c / 1mhz / 13db attn 40c / 5mhz / 13db attn 40c / 15mhz / 13db attn 35c / 1mhz / 13db attn 35c / 5mhz / 13db attn 35c / 15mhz / 13db attn 105c / 1mhz / 13db attn 105c / 5mhz / 13db attn 105c / 15mhz / 13db attn rf frequency (ghz) output ip3 (dbm) broad-band configuration r7 = 2.2k r8 = 20k c5 = 9pf mhz mhz mhz mhz dbm dbm dbm dbm f 1 f 2 imd 2 - imd 2 + imd 2 - oip 2 - imd 2 + oip 2 + 700 1950 1250 2650 71.1 51.1 69.3 49.3 700 1720 1020 2420 70.4 50.4 69.6 49.6 700 2650 1950 71.8 51.8 824 900 1724 71.5 51.5 900 1720 820 2620 70.4 50.4 70.3 50.3 1755 2600 845 69.4 49.4 1900 2600 700 69.3 49.3 12 16 20 24 28 32 36 40 44 48 52 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 40c / 1mhz / 10db attn 40c / 5mhz / 10db attn 40c / 15mhz / 10db attn 35c / 1mhz / 10db attn 35c / 5mhz / 10db attn 35c / 15mhz / 10db attn 105c / 1mhz / 10db attn 105c / 5mhz / 10db attn 105c / 15mhz / 10db attn rf frequency (ghz) output ip3 (dbm) broad-band configuration r7 = 2.2k r8 = 20k c5 = 9pf 4 2 0 2 4 6 8 10 12 14 16 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 40c / 1mhz / 0db attn 40c / 1mhz / 10db attn 40c / 1mhz / 13db attn 35c / 1mhz / 0db attn 35c / 1mhz / 10db attn 35c / 1mhz / 13db attn 105c / 1mhz / 0db attn 105c / 1mhz / 10db attn 105c / 1mhz / 13db attn rf frequency (ghz) gain (db) broad-band configuration r7 = 2.2k / r8 = 20k / c5 = 9pf mhz mhz mhz mhz dbm dbm dbm dbm f 1 f 2 imd 2 - imd 2 + imd 2 - oip 2 - imd 2 + oip 2 + 700 1950 1250 2650 50.9 50.9 49.2 49.2 700 1720 1020 2420 50.2 50.2 49.5 49.5 700 2650 1950 51.4 51.4 824 900 1724 51.2 51.2 900 1720 820 2620 50.0 50.0 50.2 50.2 1755 2600 845 49.0 49.0 1900 2600 700 48.9 48.9
matched broadband rf vga 400mhz to 2700mhz glitch-free tm , zero-distortion tm , rf vga 17 rev 3, april 2015 idtf0480nbgi datasheet toc s [h istograms ] (-7-) gain [n = 2107] total current [midband config, n = 2107] oip3 [freq = 2.0 ghz, n = 2107] attn accuracy [freq = 2.0 ghz, n = 2107] 0% 10% 20% 30% 40% 50% 60% 70% percentage gain bin (db) 900m 2000m 2700m 0% 5% 10% 15% 20% percentage current draw bin (ma) icc 0% 5% 10% 15% 20% percentage output ip3 bin (dbm) oip3 0% 10% 20% 30% 40% 50% percentage attenuation accuracy bin (db) 6 db attn 23 db attn
matched broadband rf vga 400mhz to 2700mhz glitch-free tm , zero-distortion tm , rf vga 18 rev 3, april 2015 idtf0480nbgi datasheet s tability c onsiderations the idtf0480 evkit is unconditionally stable as sho wn on page 14, bottom right graph. one can ensure that the device itself is unconditio nally stable (rollett stability factor [k] > 1) reg ardless of trace and connector losses present in the actual application by adding a shunt 500 ohm resistor at the output. for the hb configuration , it is also advised to change r8 to 400k and c5 to 4.7 pf. this 500 ohm shunt load will reduce the gain by abo ut 0.4 db but leave the rest of the performance par ameters such as ip3, s22, etc. virtually unchanged. the 500 ohm shunt load will ensure that the device is unconditionally stable without the presence of t he input and output traces and connectors associated with the ev kit. in all cases we do recommend that the output capacitor, c5, be placed as close to the output of the package as possible. gain comparison (25c ambient) and output ip3 compar ison (2.7 ghz frequency) shunt 500 ohm output resistor with 100 pf dc block to ground. alternately can be hooked directly to v cc in parallel with rf choke inductor change c5 to 4.7 pf (hb config only) change r8 to 400k (hb config only) 7 8 9 10 11 12 13 14 15 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 2.7 no load shunt 500 ohm load frequency (ghz) gain (db) 5 10 15 20 25 30 35 40 45 50 5 4 3 2 1 0 1 2 3 4 5 6 no load 25c shunt load 25c no load 40c shunt load 40c no load 105c shunt load 105c output ip3 (dbm) output power / tone (dbm) output ip3 (dbm) output power / tone (dbm) 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 no load shunt 500 ohm load frequency (ghz) kfactor
matched broadband rf vga 400mhz to 2700mhz glitch-free tm , zero-distortion tm , rf vga 19 rev 3, april 2015 idtf0480nbgi datasheet p ackage d rawing (5 mm x 5 mm 32 pin tqfn), u se e xposed pad (epad) o ption p1
matched broadband rf vga 400mhz to 2700mhz glitch-free tm , zero-distortion tm , rf vga 20 rev 3, april 2015 idtf0480nbgi datasheet l and p attern d imension
matched broadband rf vga 400mhz to 2700mhz glitch-free tm , zero-distortion tm , rf vga 21 rev 3, april 2015 idtf0480nbgi datasheet p in d iagram 9 10 11 13 14 15 12 16 25 26 27 28 29 30 31 32 spi clk spi csb logicctl vcc vcc gnd band_select gnd nc nc nc nc nc nc nc nc
matched broadband rf vga 400mhz to 2700mhz glitch-free tm , zero-distortion tm , rf vga 22 rev 3, april 2015 idtf0480nbgi datasheet p in d escription pin name function 1, 5, 6, 7, 24, 25, 26, 27, 28, 29, 30, 31, 32 n.c. no connection. not internally connected. ok to conn ect to vcc. ok to connect to gnd. 2, 4, 14, 16, 18, 21, 23 gnd ground these pins. 3 rfin rf input internally matched to 50 . must use exte rnal dc block as close to the pin as possible. 8 spi data 1 data input: 3.3v or 1.8v cmos compatible. set logi cctl pin 11 for desired logic voltage. 9 spi clk 1 clock input: 3.3v or 1.8v cmos compatible. set log icctl pin 11 for desired logic voltage. 10 spi csb 1 chip select input: 3.3v or 1.8v cmos compatible. se t logicctl pin 11 for desired logic voltage. active low shifts data. 11 logicctl logicctl v ih or open circuit sets 3.3v logic for spi pins 8, 9, and 10. logicctl v il sets 1.8v logic for spi pins 8, 9, and 10. a ~100 kohm pullup resistor connects between the input and vcc /2. for 1.8v logic, connect 0 resistor to gnd. 12 vcc 5 v power supply. tie to vcc and connect 2 bypass c apacitors with values 1000 pf (closest to pin) and 0.1 f. see ty pical application circuit for details. 13 vcc 5 v power supply. tie to vcc and connect 2 bypass capacitors with values 1000 pf (closest to pin) and 0.1 f. see ty pical application circuit for details. 15 band_select leave pin open circuited for lowband select and con nect 0 resistor to gnd for highband select. a ~1.5mohm pullup resist or connects between the input and vcc. 3.3v and 1.8v cmos logic compat ible. 17 stby standby (low/open = device power on, high = device power off with spi still powered on). a ~1mohm pulldown resistor connects between the input and gnd. 3.3v and 1.8v cmos logic compat ible 19 r_bias1 connect external resistor to gnd to optimize amplif ier bias. used in conjunction with pin 20. 20 r_bias2 connect external resistor to gnd to optimize amplif ier bias. used in conjunction with pin 19. 22 rfout rf output. must use external dc block as close to the pin as possible. 33 ep exposed pad. internally connected to gnd. solder th is exposed pad to a pcb pad that uses multiple ground vias to provide h eat transfer out of the device into the pcb ground planes. these multip le via grounds are also required to achieve the noted rf performance. 1. the spi interface should be built up by an 8bit wo rd where 5 bits are used for attenuation setting (s ee f0480 dvga attenuation word truth table above).
matched broadband rf vga 400mhz to 2700mhz glitch-free tm , zero-distortion tm , rf vga 23 rev 3, april 2015 idtf0480nbgi datasheet e v k it p icture gnd data clk csb gnd 5v 5v supply here or here band_select jumper open = low band placed = mid/high band stby jumper open = device on placed = device off band configuration elements c5, r7, r8 see p.10, p.25 for values for lb, mb, hb, wb
matched broadband rf vga 400mhz to 2700mhz glitch-free tm , zero-distortion tm , rf vga 24 rev 3, april 2015 idtf0480nbgi datasheet ev kit / a pplications c ircuit
matched broadband rf vga 400mhz to 2700mhz glitch-free tm , zero-distortion tm , rf vga 25 rev 3, april 2015 idtf0480nbgi datasheet ev kit / a pplications c ircuit (c ont ) evk it bom item # part reference qty description mfr. part # mfr. 1 c5 1 lb mode - cap cer 9pf 50v c0g (0402) grm1555c1h9r0dz01d murata 1 mb mode - cap cer 9pf 50v c0g (0402) grm1555c1h9r0dz01d 1 hb mode - cap cer 6pf 50v c0g (0402) grm1555c1h6r0dz01d 1 bb mode - cap cer 9pf 50v c0g (0402) grm1555c1h9r0dz01d 2 c4, c32, c33 3 cap cer 2 pf 50v c0g (0402) grm1555c1h2r0ba01d murata 3 c3 1 cap cer 47pf 50v c0g (0402) grm1555c1h470jz01d murata 4 c35, c36 2 cap cer 1000pf 50v c0g (0402) grm1555c1h102ja01d murata 5 c34, c37 2 cap cer 0.1uf 16v 10% x7r (0402) GRM155R71C104KA88D murata 6 c31 1 cap cer 10uf 6.3v x5r 0603 grm188r60j106me47d murata 7 r6, r9 2 res 0.0 ohm 1/10w (0402) smd erj 2ge0r00x panasonic 8 r5 1 res 20 ohm 1/10w 1% (0402) smd erj 2rkf20r0x panasonic 9 r1, r3, r4 3 res 4 70 0 ohm 1/10w 5 % (0402) smd erj 2gej472x panasonic 10 r7 1 lb mode - res 2.2 kohm 1/10w (0402) smd erj 2rkf2201x panasonic 1 mb mode - res 2.4 kohm 1/10w (0402) smd erj 2rkf2401x 1 hb mode - res 2.67 kohm 1/10w (0402) smd erj 2rkf2671x 1 bb mode - res 2.2 kohm 1/10w (0402) smd erj 2rkf2201x 11 r8 1 lb mode - res 9.1 kohm 1/10w (0402) smd erj 2rkf9101x panasonic 1 mb mode - res 27 kohm 1/10w (0402) smd erj 2rkf2702x 1 hb mode - res 75 kohm 1/10w (0402) smd erj 2rkf7502x 1 bb mode - res 20 kohm 1/10w (0402) smd erj 2rkf2002x 12 j1, j6, j7 3 sma_end_launch (small) 142 0711 821 emerson johnson 13 j3, j4, j5, j8 4 conn header vert sgl 2pos gold 961102 6404 ar 3m 14 j2 1 conn header vert sgl 4pos gold 961104 6404 ar 3m 15 u1 1 rf amp f0480 idt 16 1 printed circuit board f0480 evkit sbc
matched broadband rf vga 400mhz to 2700mhz glitch-free tm , zero-distortion tm , rf vga 26 rev 3, april 2015 idtf0480nbgi datasheet a pplications i nformation idtf0480 has been optimized for use in high perform ance rf applications from 700 mhz to 2700 mhz. power supplies a common vcc power supply should be used for all pi ns requiring dc power. all supply pins should be bypassed with external capacitors to minimize noise and fast transients. supply noise can degrade noi se figure and fast transients can trigger esd clamps a nd cause them to fail. supply voltage change or tr ansients should have a slew rate smaller than 1v/20s. in a ddition, all control pins should remain at 0v (+/0 .3v) while the supply voltage ramps or while it returns to zero. control pin interface if control signal integrity is a concern and clean signals cannot be guaranteed due to overshoot, unde rshoot, ringing, etc., the following circuit at the input o f each control pin is recommended. this applies to spi and control pins 8, 9, 10, 11, 15, and 17 as shown belo w. note the recommended resistor and capacitor val ues do not necessarily match the ev kit bom for the case o f poor control signal integrity. for multiple devi ces driven by a single control line, the component values will need to be adjusted accordingly so as not to overl oad the control line 9 10 11 13 14 15 12 16 25 26 27 28 29 30 31 32
matched broadband rf vga 400mhz to 2700mhz glitch-free tm , zero-distortion tm , rf vga 27 rev 3, april 2015 idtf0480nbgi datasheet t op m arkings

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