13 - 16 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com variable gain amplifiers - digital - smt 13 hmc626lp5 / 626LP5E v06.0709 functional diagram electrical speci cations, t a = +25 c, vdd = vs= +5v, vctl= 0/ +5v the hmc626lp5(e) is ideal for: ? if & rf applications ? cellular/3g infrastructure ? wibro / wimax / 4g ? microwave radio & vsat ? test equipment and sensors +8.5 db to +40 db gain control in 0.5 db steps high output ip3: +36 dbm 0.25 db typical gain step error single +5v supply 32 lead 5x5mm smt package: 25mm 2 the hmc626lp5(e) is a digitally controlled variable gain ampli er which operates from dc to 1 ghz, and can be programmed to provide anywhere from 8.5 db, to 40 db of gain, in 0.5 db steps. the hmc626lp5(e) delivers noise gure of 2.8 db in its maximum gain state, with output ip3 of up to +36 dbm in any state. this single positive control line per bit digital vga incorporates off chip ac ground capacitors for near dc operation, making it suitable for a wide variety of rf and if applications. the hmc626lp5(e) is housed in a rohs compliant 5x5 mm qfn leadless package, and requires no external matching components. a serial control version of this product is available as the hmc681lp5(e). parameter frequency min. typ. max. units gain (maximum gain state) dc - 0.5 ghz 0.5 - 1.0 ghz 37 30 42.5 35.0 db db gain control range 31.5 db input return loss 20 db output return loss 15 db gain setting accuracy: (referenced to maximum gain state) all gain states 0.5 - 1.0 ghz (0.15 + 3% of relative gain setting) max. db output power for 1 db compression dc - 1.0 ghz 20 dbm output third order intercept point (two-tone output power= 5 dbm each tone) dc - 1.0 ghz 36 dbm noise figure dc - 1.0 ghz 2.8 db switching characteristics trise, tfall (10/90% rf) ton, toff (50% ctl to 10/90% rf) dc - 1.0 ghz 130 140 ns ns total supply current dc - 1.0 ghz 176 225 ma typical applications features general description 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, dc - 1 ghz
13 - 17 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com variable gain amplifiers - digital - smt 13 input return loss [2] (only major states are shown) relative gain setting (referenced to maximum gain state) (only major states are shown) gain vs. frequency [1] input return loss [1] (only major states are shown) output return loss [2] (only major states are shown) 0 5 10 15 20 25 30 35 40 45 50 0 0.3 0.5 0.8 1 1.3 1.5 +25 c +85 c -40 c gain (db) frequency (ghz) [1] [2] -40 -35 -30 -25 -20 -15 -10 -5 0 0 0.3 0.5 0.8 1 1.3 1.5 return loss (db) frequency (ghz) -40 -35 -30 -25 -20 -15 -10 -5 0 0 0.3 0.5 0.8 1 1.3 1.5 return loss (db) frequency (ghz) output return loss [1] (only major states are shown) -40 -35 -30 -25 -20 -15 -10 -5 0 0 0.3 0.5 0.8 1 1.3 1.5 return loss (db) frequency (ghz) -40 -35 -30 -25 -20 -15 -10 -5 0 0 0.3 0.5 0.8 1 1.3 1.5 return loss (db) frequency (ghz) -35 -30 -25 -20 -15 -10 -5 0 0 0.3 0.5 0.8 1 1.3 1.5 relative gain (db) frequency (ghz) [1] tested with broadband bias tee on output j2, c7, c8 = 10,000pf ; l1 = 680nh [2] data taken on eval board as described in data sheet hmc626lp5 / 626LP5E v06.0709 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, dc - 1 ghz
13 - 18 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com variable gain amplifiers - digital - smt 13 step error vs. frequency [2] (only major states are shown) bit error vs. frequency [2] (only major states are shown) bit error vs. relative gain setting [2] relative phase vs. frequency [2] (only major states are shown) -40 -20 0 20 40 60 0 0.3 0.5 0.8 1 1.3 1.5 relative phase (deg) frequency (ghz) 31.5 db 16 db 8 db 0.5 - 4 db -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 0 0.3 0.5 0.8 1 1.3 1.5 bit error (db) frequency (ghz) -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 0 4 8 12 16 20 24 28 32 bit error (db) relative gain setting (db) -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1 0 0.3 0.5 0.8 1 1.3 1.5 step error (db) frequency (ghz) [1] tested with broadband bias tee on output j2, c7, c8 = 10,000pf ; l1 = 680nh [2] data taken on eval board as described in data sheet hmc626lp5 / 626LP5E v06.0709 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, dc - 1 ghz
13 - 19 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com variable gain amplifiers - digital - smt 13 bias voltage & current vdd (v) idd (typ.) (ma) +4.5 4.7 +5.0 5.0 +5.5 5.3 vs (v) is (ma) +5.0 176 control voltage input relative gain setting v1 16 db v2 8db v3 4 db v4 2 db v5 1 db v6 0.5 db high high high high high high reference 0 db high high high high high low -0.5 db high high high high low high -1 db high high high low high high -2 db high high low high high high -4 db high low high high high high -8 db low high high high high high -16 db low low low low low low -31.5 db any combination of the above states will provide a relative gain setting approximately equal to the sum of the bits selected. truth table hmc626lp5 / 626LP5E v06.0709 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, dc - 1 ghz control voltage table state vdd = +3v vdd = +5v low 0 to 0.5v @ <1 a 0 to 0.8v @ <1 a high 2 to 3v @ <1 a 2 to 5v @ <1 a
13 - 20 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com variable gain amplifiers - digital - smt 13 absolute maximum ratings outline drawing rf input power [1] (at max gain setting) -10.5 dbm (t = +85 c) bias voltage (vdd) +5.5 vdc collector bias voltage (vcc) 5.5 vdc channel/junction temperature 150 c continuous pdiss (t = 85 c) (derate 19.8 mw/c above 85 c) [1] 1.29 w thermal resistance 50.8 c/w storage temperature -65 to +150 c operating temperature -40 to +85 c [1] the max rf input power rating will increase by 0.5 db for every 0.5 db reduction in gain to a maximum rf input power of 10 dbm. notes: 1. leadframe material: copper alloy 2. dimensions are in inches [millimeters] 3. lead spacing tolerance is non-cumulative. 4. pad burr length shall be 0.15mm maximum. pad burr height shall be 0.05mm maximum. 5. package warp shall not exceed 0.05mm. 6. all ground leads and ground paddle must be soldered to pcb rf ground. 7. refer to hittite application note for suggested land pattern. electrostatic sensitive device observe handling precautions part number package body material lead finish msl rating package marking [3] hmc626lp5 low stress injection molded plastic sn/pb solder msl1 [1] h626 xxxx hmc626LP5E rohs-compliant low stress injection molded plastic 100% matte sn msl1 [2] h626 xxxx [1] max peak re ow temperature of 235 c [2] max peak re ow temperature of 260 c [3] 4-digit lot number xxxx package information hmc626lp5 / 626LP5E v06.0709 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, dc - 1 ghz
13 - 21 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com variable gain amplifiers - digital - smt 13 pin descriptions pin number function description interface schematic 1, 5, 9, 14, 16, 23, 24, 31 n/c these pins may be connected to rf/dc ground. performance will not be affected. 2, 20 rfin1, rfin2 this pin is dc coupled. an off chip dc blocking capacitor is required. 4, 22 rfout1, rfout2 rf output and dc bias (vcc) for the output stage of the ampli ers. ampli er bias provided via external bias tee as shown in application circuit. 3, 7, 18, 21 gnd these pins and package bottom must be connected to rf/dc ground. 6, 19 at tin, at tout these pins are dc coupled and matched to 50 ohms. blocking capacitors are required. select value based on lowest frequency of operation. 8, 10, 11, 12, 13, 15, 17 acg1, acg2, acg3, acg4, acg5, acg6, acg7 external capacitors to ground is required. select value for lowest frequency of operation. place capacitor as close to pins as possible. 25 - 30 v1 - v6 see truth table, control voltage table and timing diagram. 32 vdd supply voltage hmc626lp5 / 626LP5E v06.0709 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, dc - 1 ghz
13 - 22 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com variable gain amplifiers - digital - smt 13 application circuit top view hmc626lp5 / 626LP5E v06.0709 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, dc - 1 ghz
13 - 23 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com variable gain amplifiers - digital - smt 13 evaluation pcb the circuit board used in the nal application should use rf circuit design techniques. signal lines should have 50 ohm impedance while the package ground leads and exposed paddle should be con- nected directly to the ground plane similar to that shown. a sufficient number of via holes should be used to connect the top and bottom ground planes. the evaluation circuit board shown is available from hittite upon request. list of materials for evaluation pcb 117355 [1] item description j1 - j2 pcb mount sma connector j3 12 pin dc connector j4 - j9 dc pin c1, c2, c9, c10 820 pf capacitor, 0402 pkg. c3, c4 100 pf capacitor, 0402 pkg. c5 - c8 330 pf capacitor, 0402 pkg. c11 - c13 1000 pf capacitor, 0402 pkg. c14, c15 2.2 f capacitor, case a pkg. r1, r2 1.8 ohm resistor, 0603 pkg. l1, l2 110 nh inductor, 0603 pkg. u1 hmc626lp5(e) variable gain ampli er pcb [2] 118934 evaluation pcb [1] reference this number when ordering complete evaluation pcb [2] circuit board material: arlon 25fr hmc626lp5 / 626LP5E v06.0709 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, dc - 1 ghz
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