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12 - 1 for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com variable gain amplifiers - digital - smt 12 hmc742lp5e v05.0610 functional diagram electrical specifcations, t a = +25 c, 50 ohm system vdd = +5v, vs= +5v the hmc742lp5e is ideal for: ? cellular/3g infrastructure ? wibro / wimax / 4g ? microwave radio & vsat ? test equipment and sensors ? if & rf applications -19.5 to 12 db gain control in 0.5 db steps power-up state selection high output ip3: +39 dbm ttl/cmos compatible serial, parallel, or latched parallel control 0.25 db typical gain step error single +5v supply 32 lead 5x5mm smt package: 25mm 2 the hmc742lp5e is a digitally controlled variable gain amplifer which operates from 70 mhz to 4 ghz, and can be programmed to provide from -19.5 db attenuation, to 12 db of gain, in 0.5 db steps. the hmc742lp5e delivers noise fgure of 4 db in its maximum gain state, with output ip3 of up to +39 dbm in any state. the dual mode gain control interface accepts either a three-wire serial input or a 6 bit parallel word. the hmc742lp5e also features a user selectable power up state and a serial output for cascading other serially controlled hittite components. the hmc742lp5e is housed in an rohs compliant 5x5 mm qfn leadless package, and requires minimal external components. parameter min. typ. max. min. typ. max. units 70 - 1000 500 - 4000 mhz gain (maximum gain state) 12 9 db gain control range 31.5 31.5 db input return loss 15 12 db output return loss 14 10 db gain accuracy: (referenced to maximum gain state) all gain states 70 mhz - 350 mhz (0.3 + 5% of relative gain setting) max 350 mhz - 1000 mhz (0.3 + 6% of relative gain setting) max (0.3 + 4% of relative gain setting) max db output power for 1 db compression 21.5 22 dbm output third order intercept point (two-tone output power= 12 dbm each tone) 40 39 dbm noise figure (max gain state) 4 4.5 db switching characteristics trise, tfall (10 / 90% rf) 70 170 70 170 ns ns ton, toff (latch enable to 10 / 90% rf) supply current (amplifer) 130 150 190 130 150 190 ma supply current (controller) idd 1.0 2.0 3.0 1.0 2.0 3.0 ma typical applications features general description 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, 70 mhz - 4 ghz
12 - 2 for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com variable gain amplifiers - digital - smt 12 hmc742lp5e v05.0610 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, 70 mhz - 4 ghz input return loss relative gain setting (referenced to maximum gain state) maximum gain vs. temperature output return loss bit error vs. frequency bit error vs. relative gain 70 to 1000 mhz tuning 5 7 9 11 13 15 17 0 0.2 0.4 0.6 0.8 1 +25 c +85 c -40 c gain (db) frequency (ghz) -40 -30 -20 -10 0 0 0.2 0.4 0.6 0.8 1 return loss (db) frequency (ghz) 16db 31.5db 0db -40 -30 -20 -10 0 0 0.2 0.4 0.6 0.8 1 return loss (db) frequency (ghz) 0db 31.5db -40 -30 -20 -10 0 0 0.2 0.4 0.6 0.8 1 relative gain (db) frequency (ghz) 8db 16db 31.5db -2 -1 0 1 2 3 4 0 0.2 0.4 0.6 0.8 1 bit error (db) frequency (ghz) 31.5db 16db -1 0 1 2 3 0 8 16 24 32 bit error (db) relative gain setting (db) 0.5, 0.7, 0.9ghz 0.1, 0.3ghz
12 - 3 for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com variable gain amplifiers - digital - smt 12 hmc742lp5e v05.0610 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, 70 mhz - 4 ghz relative phase vs. frequency step error vs. frequency noise figure vs. temperature [1] output p1db vs. temperature output ip3 vs. temperature psat vs. temperature 70 to 1000 mhz tuning [1] max gain state -20 -10 0 10 20 0 0.2 0.4 0.6 0.8 1 relative phase (deg) frequency (ghz) 31.5db 8, 16db 0, 0.5, 1, 2, 4db -1 -0.5 0 0.5 1 0 0.2 0.4 0.6 0.8 1 step error (db) frequency (ghz) 2, 4db 0.5, 8, 16db 0 2 4 6 8 0 0.2 0.4 0.6 0.8 1 +25 c +85 c -40 c noise figure (db) frequency (ghz) 18 19 20 21 22 23 24 0 0.2 0.4 0.6 0.8 1 +25 c +85 c -40 c p1db (dbm) frequency (ghz) 12 16 20 24 28 0 0.2 0.4 0.6 0.8 1 +25 c +85 c -40 c psat (dbm) frequency (ghz) 32 36 40 44 48 0 0.2 0.4 0.6 0.8 1 +25 c +85 c -40 c ip3 (dbm) frequency (ghz)
12 - 4 for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com variable gain amplifiers - digital - smt 12 hmc742lp5e v05.0610 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, 70 mhz - 4 ghz maximum gain vs. frequency input return loss output return loss relative gain setting (referenced to maximum gain state) bit error vs. frequency bit error vs. relative gain 0.5 to 4.0 ghz tuning 0 4 8 12 16 0.5 1 1.5 2 2.5 3 3.5 4 +25 c +85 c -40 c gain(db) frequency (ghz) -40 -30 -20 -10 0 0.5 1 1.5 2 2.5 3 3.5 4 relative gain(db) frequency (ghz) 31.5db 16db 8db -40 -30 -20 -10 0 0.5 1 1.5 2 2.5 3 3.5 4 return loss (db) frequency (ghz) 4db 16db 31.5db 0db -40 -30 -20 -10 0 0.5 1 1.5 2 2.5 3 3.5 4 return loss (db) frequency (ghz) 31.5db 0db -2 -1 0 1 2 3 4 0.5 1 1.5 2 2.5 3 3.5 4 bit error (db) frequency (ghz) 1db 31.5db 8db -1 0 1 2 3 0 4 8 12 16 20 24 28 32 bit error (db) relative gain state (db) 1.0, 4.0ghz 2.0, 3.0ghz
12 - 5 for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com variable gain amplifiers - digital - smt 12 hmc742lp5e v05.0610 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, 70 mhz - 4 ghz relative phase vs. frequency step error vs. frequency output p1db vs. temperature psat vs. temperature output ip3 vs. temperature noise figure vs. frequency [1] 0.5 to 4.0 ghz tuning [1] max gain state -30 -20 -10 0 10 20 30 0.5 1 1.5 2 2.5 3 3.5 4 relative phase (deg) frequency (ghz) 8db 31.5db 16db 8db -1 -0.5 0 0.5 1 0.5 1 1.5 2 2.5 3 3.5 4 step error (db) frequency (ghz) 16db 0.5, 31.5db 4, 8db 0 2 4 6 8 0.5 1 1.5 2 2.5 3 3.5 4 +25 c +85 c -40 c noise figure (db) frequency (ghz) 8 13 18 23 28 0.5 1 1.5 2 2.5 3 3.5 4 +25 c +85 c -40 c p1db (dbm) frequency (ghz) 8 13 18 23 28 33 0.5 1 1.5 2 2.5 3 3.5 4 +25 c +85 c -40 c psat (dbm) frequency (ghz) 20 25 30 35 40 45 50 0.5 1 1.5 2 2.5 3 3.5 4 +25 c +85 c -40 c ip3 (dbm) frequency (ghz)
12 - 6 for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com variable gain amplifiers - digital - smt 12 hmc742lp5e v05.0610 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, 70 mhz - 4 ghz serial control interface parallel mode (direct parallel mode & latched parallel mode) the hmc742lp5e contains a 3-wire spi compatible digital interface (serin, clk, le). the serial control interrface is activated when p/s is kept high. the 6-bit serial word must be loaded msb frst. the positive-edge sensitive clk and le requires clean transitions. if mechanical switches are used, sufficient debouncing should be provided. when le is high, 6-bit data in the serial input register is transferred to the attenuator. when le is high clk is masked to prevent data transition during output loading. when p/s is low, 3-wire spi interface inputs (serin, clk, le) are disabled and the input register is loaded with parallel digital inputs (d0-d5). when le is high, 6-bit parallel data changes the state of the part per truth table. for all modes of operations, the dvga state will stay constant while le is kept low. note: the parallel mode is enabled when p/s is set to low. direct parallel mode - the attenuation state is changed by the control voltage inputs d0-d5 directly. the le (latch enable) must be at a logic high at all times to control the attenuator in this manner. latched parallel mode - the attenuation state is selected using the control voltage inputs d0-d5 and set while the le is in the low state. the attenuator will not change state while le is low. once all control voltage inputs are at the desired states the le is pulsed. see timing diagram above for reference. timing diagram (latched parallel mode) parameter typ. min. serial period, t sck 100 ns control set-up time, t cs 20 ns control hold-time, t ch 20 ns le setup-time, t ln 10 ns min. le pulse width, t lew 10 ns min le pulse spacing, t les 630 ns serial clock hold-time from le, t ckn 10 ns hold time, t ph. 0 ns latch enable minimum width, t len 10 ns setup time, t ps 2 ns
12 - 7 for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com variable gain amplifiers - digital - smt 12 absolute maximum ratings rf input power at max gain [1] 17.5 dbm (t = +85 c) digital inputs ( reset , shift clock, latch enable & serial input) -0.5 to vdd +0.5v bias voltage (vdd) 5.6v collector bias voltage (vcc) 5.5v channel temperature 175 c continuous pdiss (t = 85 c) (derate 13.3 mw/ c above 85 c) [2] 1.2 w thermal resistance [3] 75.6 c/w storage temperature -65 to +150 c operating temperature -40 to +85 c [1] the maximum rf input power increases by the same amount the gain is reduced. the maximum input power at any state is no more than 28 dbm. [2] this value does not include the rf power dissipation in the attenuator. the loss in the attenuator depends on the state of the attenuator. the loss in the attenuator should be included to determine the total power dissipation in the part. [3] this value does not include the rf power dissipation in the attenuator. the thermal resistance at different states of the attenuator can be determined based on note [2] electrostatic sensitive device observe handling precautions bias voltage pup truth table le pup1 pup2 gain relative to maximum gain 0 0 0 -31.5 0 1 0 -24 0 0 1 -16 0 1 1 insertion loss 1 x x 0 to -31.5 db note: the logic state of d0 - d5 determines the power-up state per truth table shown below when le is high at power-up. power-up states vdd (v) idd (typ.) (ma) +5.0 2 vs (v) is (ma) +5.0 150 control voltage input gain relative to maximum gain d5 d4 d3 d2 d1 d0 high high high high high high 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 reduction in gain approximately equal to the sum of the bits selected. truth table if le is set to logic low at power-up, the logic state of pup1 and pup2 determines the power-up state of the part per pup truth table. if the le is set to logic high at power-up, the logic state of d0-d5 determines the power-up state of the part per truth table. the dvga latches in the desired power-up state approximately 200 ms after power-up. power-on sequence the ideal power-up sequence is: gnd, vdd, digital inputs, rf inputs. the relative order of the digital inputs are not important as long as they are powered after vdd / gnd hmc742lp5e v05.0610 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, 70 mhz - 4 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
12 - 8 for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com variable gain amplifiers - digital - smt 12 hmc742lp5e v05.0610 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, 70 mhz - 4 ghz outline drawing 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. part number package body material lead finish msl rating package marking [1] hmc742lp5e rohs-compliant low stress injection molded plastic 100% matte sn msl1 [2] h742 xxxx [1] 4-digit lot number xxxx [2] max peak refow temperature of 260 c package information
12 - 9 for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com variable gain amplifiers - digital - smt 12 pin number function description interface schematic 1 ampin this pin is dc coupled. an off chip dc blocking capacitor is required. 29 ampout rf output and dc bias (vcc) for the output stage of the amplifer. 2, 3, 13, 28, 30 - 32 gnd these pins and package bottom must be connected to rf/dc ground. 4, 12 attin, attout these pins are dc coupled and matched to 50 ohms. blocking capacitors are required. select value based on lowest frequency of operation. 5 - 10 acg1 - acg6 external capacitors to ground is required. select value for lowest frequency of operation. place capacitor as close to pins as possible. 11 n/c no connection 14 serout serial input data delayed by 6 clock cycles. 15, 16 pup2, pup1 18 - 23 d5, d4, d3, d2, d1, d0 24 p/s 25 clk 26 serin 27 le 17 vdd supply voltage pin descriptions hmc742lp5e v05.0610 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, 70 mhz - 4 ghz
12 - 10 for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com variable gain amplifiers - digital - smt 12 hmc742lp5e v05.0610 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, 70 mhz - 4 ghz application circuit tuned frequency 70 - 1000 mhz 500 - 4000 mhz evaluation pcb 124694 [1] 124695 [1] c1 ,c6, c8 (pf) 10000 330 c3, c4 (pf) 1000 100 c2, c5 (pf) 1000 n/a c9 (pf) 1000 100 c12 (pf) 5600 1000 l1 (nh) 560 47 [1] reference this number when ordering complete evaluation pcb components for selected frequencies
12 - 11 for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com variable gain amplifiers - digital - smt 12 evaluation pcb the circuit board used in the application should use rf circuit design techniques. signal lines should have 50 ohm impedance while the package ground leads and exposed paddle should be connected 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 hit - tite upon request. list of materials for evaluation pcb [2] item description j1 - j2 pcb mount sma connectors j3 18 pin dc connector j4 - j6 dc pin c1 - c6, c8, c9 capacitor, 0402 pkg. [2] c7 100pf capacitor. 0402 pkg. c11 1000 pf capacitor, 0402 pkg. c12 capacitor, 0603 pkg. [2] c14 2.2 f capacitor, case a pkg. r1 - r14 100 kohm resistor, 0402 pkg. r15 0 ohm resistor, 1206 pkg. l1 inductor, 0603 pkg. [2] sw1, sw2 spdt 4 position dip switch u1 hmc742lp5e variable gain amplifer pcb [1] 116958 evaluation pcb [1] circuit board material: arlon 25fr, fr4 [2] please reference components for selected frequencies table shown on previous page. hmc742lp5e v05.0610 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, 70 mhz - 4 ghz
12 - 12 for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com variable gain amplifiers - digital - smt 12 notes: hmc742lp5e v05.0610 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, 70 mhz - 4 ghz

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