14 - 2 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 - smt 14 HMC625LP5 / 625lp5e v00.0607 functional diagram electrical specifications, t a = +25 c, vdd= +5v, vs= +5v the HMC625LP5(e) is ideal for: ? cellular/3g infrastructure ? wibro / wimax / 4g ? microwave radio & vsat ? test equipment and sensors ? if & rf applications -13.5 to +18 gain control in 0.5 db steps high output ip3: +33 dbm ttl/cmos compatible serial or parallel control 0.25 db typical gain step error single +5v supply compact 5x5mm smt package the HMC625LP5(e) is a digitally controlled variable gain ampli er which operates from dc to 6 ghz, and can be programmed to provide anywhere from 13.5 db attenuation, to 18 db of gain, in 0.5 db steps. the HMC625LP5(e) delivers noise gure of 6 db in its maximum gain state, with output ip3 of up to +33 dbm in any state. the dual mode control interface is cmos/ ttl compatible, and accepts either a three wire serial input or a 6 bit parallel word. the HMC625LP5(e) also features a user selectable power up state and a serial output port for cascading other hittite serial controlled components. the HMC625LP5(e) is housed in a rohs compliant 5x5 mm qfn leadless package, and requires no external matching components. parameter frequency min. typ. max. units gain (maximum gain state) dc - 3.0 ghz 3.0 - 6.0 ghz 13 5 18 13 db db gain control range 31.5 db input return loss dc - 6.0 ghz 15 db output return loss dc - 6.0 ghz 12 db gain accuracy: (referenced to maximum gain state) all gain states dc - 0.8 ghz 0.8 - 6.0 ghz (0.10 + 5% of gain setting) max. (0.30 + 3% of gain setting) max. db db output power for 1db compression dc - 3.0 ghz 3.0 - 6.0 ghz 16 13 19 16 dbm output third order intercept point (two-tone input power= 0 dbm each tone) dc - 6.0 ghz 33 dbm noise figure dc - 6.0 ghz 6 db supply current (idd) dc - 6.0 ghz 88 ma typical applications features general description 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, dc - 6 ghz
14 - 3 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 - smt 14 input return loss [1] (only major states are shown) normalized attenuation [2] (only major states are shown) HMC625LP5 / 625lp5e v00.0607 -35 -30 -25 -20 -15 -10 -5 0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 normalized attenuation (db) frequency (ghz) -40 -35 -30 -25 -20 -15 -10 -5 0 0123456 return loss (db) frequency (ghz) -25 -20 -15 -10 -5 0 5 10 15 20 25 0123456 +25 c +85 c -40 c gain (db) frequency (ghz) [2] [1] maximum gain vs. frequency 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, dc - 6 ghz input return loss [2] (only major states are shown) -40 -35 -30 -25 -20 -15 -10 -5 0 0123456 return loss (db) frequency (ghz) [1] tested with broadband bias tee on rf ports and c1 = 10,000pf [2] c1, c6 and c8 = 100pf, l1 = 24nh output return loss [1] (only major states are shown) -40 -35 -30 -25 -20 -15 -10 -5 0 0123456 return loss (db) frequency (ghz) output return loss [2] (only major states are shown) -40 -35 -30 -25 -20 -15 -10 -5 0 0123456 return loss (db) frequency (ghz)
14 - 4 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 - smt 14 step error vs. frequency [2] (only major states are shown) -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1 0123456 step error (db) frequency (ghz) HMC625LP5 / 625lp5e v00.0607 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, dc - 6 ghz bit error vs. frequency [2] (only major states are shown) bit error vs. attenuation state [2] -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 0123456 bit error (db) frequency (ghz) -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1 0 4 8 12 16 20 24 28 32 bit error (db) attenuation state (db) 100mhz, 3ghz, 4ghz 500mhz, 1ghz, 2ghz normal relative phase vs. frequency [2] (only major states are shown) -40 -20 0 20 40 60 80 0123456 relative phase (deg) frequency (ghz) 31.5 db 16 db 8 db 0.5 - 4 db [1] tested with broadband bias tee on rf ports and c1 = 10,000pf [2] c1, c6 and c8 = 100pf, l1 = 24nf
14 - 5 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 - smt 14 serial mode parallel mode (direct parallel mode & latched parallel mode) HMC625LP5 / 625lp5e v00.0607 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, dc - 6 ghz the serial mode is enabled then p/s is set to high. data is entered lsb rst and after the 6th shift clock cycle the le (latch enable) is pulsed high and then low. see timing diagram below for reference. timing diagram direct parallel mode - the attenuation state is changed by the control voltage inputs directly. the le (latch enable) must be at a logic high to control the attenuator in this manner. latched parallel mode - the attenuation state is selected using the control voltage inputs 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 below for reference. timing diagram (latched parallel mode) parameter symbol vdd = +5v (typ.) units serial input setup time ts 20 ns hold time from serial input to shift clock th 20 ns setup time from shift clock to latch enable tlsup 40 ns propagation delay tpd 10 ns setup time for new data tsnd 10 ns timing
14 - 6 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 - smt 14 absolute maximum ratings rf input power [1] 11.5 dbm (t = 85 c) digital inputs (reset, shift clock, latch enable & serial input) -1.5v to (vdd +1.5v) vdc bias voltage (vdd) 5.6 vdc collector bias voltage (vcc) 5.5 vdc channel temperature 150 c continuous pdiss (t = 85 c) (derate 8.5 mw/c above 85 c) [1] 0.549 w thermal resistance 118 c/w storage temperature -65 to +150 c operating temperature -40 to +85 c [1] at max gain settling electrostatic sensitive device observe handling precautions bias voltage vdd (vdc) idd (typ.) (ma) 5v 2 vs (v) is (typ.) (ma) 5v 86 parallel pup truth table p/s le pup2 pup1 gain relative to maximum gain 0000 -31.5 0010 -24 0001 -16 0011 -8 0 1 x x -0.5 to -31.5 db note: power-up with le= 1 provides normal parallel operation with d0 - d5, and pup1 and pup2 are not active. power-up states using the parallel pup truth table the attenuator can be turned on at a speci c attenuation state. by using the pup1 and pup2 line four different attenuation states can be selected. it can also be used in the direct parallel mode using the control voltage inputs to select attenuation values. HMC625LP5 / 625lp5e v00.0607 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, dc - 6 ghz 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 ttl/cmos control voltage state vdd= +3v or +5v low 0 to 0.8v high 2.0v to vdd
14 - 7 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 - smt 14 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 [3] HMC625LP5 low stress injection molded plastic sn/pb solder msl1 [1] h542 xxxx HMC625LP5e rohs-compliant low stress injection molded plastic 100% matte sn msl1 [2] h542 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 HMC625LP5 / 625lp5e v00.0607 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, dc - 6 ghz
14 - 8 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 - smt 14 pin number function description interface schematic 1ampin 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 ampli er. 2, 3, 11, 13, 28, 30 - 32 gnd these pins and package bottom must be connected to rf/dc ground. 4, 12 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. 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. 14 serin see truth table, control voltage table and timing diagram. 15, 16 pup2, pup1 18 - 23 d5, d4, d3, d2, d1, d0 24 p/s 25 clk 27 le 17 vdd supply voltage 26 serout serial input data delayed by 6 clock cycles. pin descriptions HMC625LP5 / 625lp5e v00.0607 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, dc - 6 ghz
14 - 9 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 - smt 14 HMC625LP5 / 625lp5e 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, dc - 6 ghz v00.0607 application circuit
14 - 10 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 - smt 14 evaluation pcb the circuit board used in the nal application should use rf circuit design te chniques. 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 suf cient 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 116960 [1] item description j1 - j2 pcb mount sma connector j3 1 pin dc connector j4, j5 14 pin dc connector c1 - c9 100 pf capacitor, 0402 pkg. c11 - c12 1000 pf capacitor, 0402 pkg. c14 2.2 f capacitor, casea pkg. r1 1.8 ohm resistor, 1206 pkg. l1 24 nh inductor, 0 6 03 pkg. u1 HMC625LP5(e) variable gain ampli er pcb [2] 116958 evaluation pcb [1] reference this number when ordering complete evaluation pcb [2] circuit board material: rogers 4350 HMC625LP5 / 625lp5e v00.0607 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, dc - 6 ghz
14 - 11 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 - smt 14 HMC625LP5 / 625lp5e v00.0607 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, dc - 6 ghz notes:
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