attenuators - smt 5 5 - 196 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 0.5 db lsb gaas mmic 5-bit digital positive control attenuator, 0.7 - 3.8 ghz general description features functional diagram the hmc603qs16 & hmc603qs16e are general purpose broadband 5-bit positive control gaas ic digital attenuators in 16 lead qsop surface mount plastic packages. covering 0.7 to 3.8 ghz, the inser- tion loss is less than 1.9 db typical. the attenuator bit values are 0.5 (lsb), 1, 2, 4 and 8 db for a total attenuation of 15.5 db. attenuation accuracy is excel- lent at 0.15 db typical with an iip3 of +50 dbm. five bit control voltage inputs, toggled between 0 and +3 to +5v, are used to select each attenuation state at less than 1 ua each. a single vdd bias of +3 to +5v applied through an external 5k ohm resistor is required. 0.5 db lsb steps to 15.5 db single positive control per bit 0.15 db typical bit error high input ip3: +50 dbm qsop16 smt package electrical speci cations, t a = +25 c, vdd= +3v to +5v & vctl= 0/vdd (unless otherwise stated) typical applications the hmc603qs16 / hmc603qs16e is ideal for: ? cellular/3g infrastructure ? ism, mmds ? wlan, wimax, & wibro parameter frequency (ghz) min. typical max. units insertion loss 0.7 - 1.4 ghz 1.4 - 2.3 ghz 2.3 - 3.0 ghz 3.0 - 3.8 ghz 1. 3 1. 6 1. 9 2.6 1. 6 1. 9 2.2 3.0 db db db db attenuation range 15.5 db return loss (rf1 & rf2, all atten. states) 0.7 - 1.4 ghz 1.4 - 3.0 ghz 3.0 - 3.8 ghz 18 20 15 db db db attenuation accuracy: (referenced to insertion loss) all states 0.7 -2.2 ghz 2.2 - 3.8 ghz (0.2 + 2% of atten. setting) max. (0.3 + 3% of atten. setting) max. db db input power for 0.1 db compression vdd = 5v vdd = 3v 0.7 - 3.8 ghz 29 28 dbm dbm input third order intercept point (two-tone input power = 0 dbm each tone) ref - 2 db states 2.5 - 15.5 db states 0.7 - 3.8 ghz 53 48 dbm dbm switching characteristics 0.7 - 3.8 ghz 1. 6 1. 6 s s trise, tfall (10/90% rf) ton, toff (50% ctl to 10/90% rf) hmc603qs16 / 603qs16e v01.1006
attenuators - smt 5 5 - 197 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 return loss rf1, rf2 (only major states are shown) bit error vs. attenuation state insertion loss normalized attenuation (only major states are shown) bit error vs. frequency (only major states are shown) relative phase vs. frequency (only major states are shown) hmc603qs16 / 603qs16e v01.1006 -4 -3.5 -3 -2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 3 3.5 4 +25 c +85 c -40 c insertion loss (db) frequency (ghz) -0.3 -0.2 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.5 2 3.5 5 6.5 8 9.5 11 12.5 14 15.5 bit error (db) attenuation state (db) 0.9 ghz 1.9 ghz 3.5 ghz 2.4 ghz -40 -20 0 20 40 0.5 1 1.5 2 2.5 3 3.5 4 relative phase (deg) frequency (ghz) 0.5, 1, 2 db 4 db 8 db 15.5 db -0.6 -0.3 0 0.3 0.6 0.5 1 1.5 2 2.5 3 3.5 4 bit error (db) frequency (ghz) 15.5 db 8 db 2 db 1 db 4 db 0.5 db -18 -16 -14 -12 -10 -8 -6 -4 -2 0 0.5 1 1.5 2 2.5 3 3.5 4 normalized attenuation (db) frequency (ghz) -40 -35 -30 -25 -20 -15 -10 -5 0 0.5 1 1.5 2 2.5 3 3.5 4 return loss (db) frequency (ghz) i.l 0.5 db 1 db 2 db 4 db 8 db 15.5 db 0.5 db lsb gaas mmic 5-bit digital positive control attenuator, 0.7 - 3.8 ghz
attenuators - smt 5 5 - 198 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 v01.1006 application circuit note: dc blocking capacitors c1 & c2 are required on rf1 & rf2. choose c1 = c2 = 100 ~ 300 pf to allow lowest customer speci c frequency to pass with minimal loss. r1= 5k ohm is required to supply voltage to the circuit through either pin 9 or pin 16. hmc603qs16 / 603qs16e truth table control voltage input attenuation setting rf1 - rf2 v1 8 db v2 4 db v3 2 db v4 1 db v5 0.5 db high high high high high reference i.l. high high high high low 0.5 db high high high low high 1 db high high low high high 2 db high low high high high 4 db low high high high high 8 db low low low low low 15.5 db max. atten. any combination of the above states will provide an attenuation approximately equal to the sum of the bits selected. worst case step error -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.5 1 1.5 2 2.5 3 3.5 4 step error (db) frequency (ghz) control & bias voltages state bias condition low 0 to +0.2v @ 1.0 a max. high vdd 0.2v @ 0.5 a max. note: vdd = +3v to +5v 0.00.20.2 0.2v bias voltage & current vdd = +5.0 vdc 10% vdd (vdc) idd (typ.) (a) +3.0 4.0 +5.0 5.0 0.5 db lsb gaas mmic 5-bit digital positive control attenuator, 0.7 - 3.8 ghz
attenuators - smt 5 5 - 199 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 v01.1006 outline drawing absolute maximum ratings rf input power (0.7 - 3.8 ghz) +30 dbm control voltage (v1 - v5) vdd + 0.5 vdc bias voltage (vdd) +8.0 vdc channel temperature 150 c thermal resistance 174 c/w storage temperature -65 to +150 c operating temperature -40 to +85 c esd sensitivity (hbm) class 1a electrostatic sensitive device observe handling precautions notes: 1. leadframe material: copper alloy 2. dimensions are in inches [millimeters]. 3. dimension does not include moldflash of 0.15mm per side. 4. dimension does not include moldflash of 0.25mm per side. 5. all ground leads must be soldered to pcb rf ground. part number package body material lead finish msl rating package marking [3] hmc603qs16 low stress injection molded plastic sn/pb solder msl1 [1] hmc603 xxxx hmc603qs16e rohs-compliant low stress injection molded plastic 100% matte sn msl1 [2] hmc603 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 hmc603qs16 / 603qs16e 0.5 db lsb gaas mmic 5-bit digital positive control attenuator, 0.7 - 3.8 ghz
attenuators - smt 5 5 - 200 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 v01.1006 hmc603qs16 / 603qs16e pin descriptions pin number function description interface schematic 1, 2, 8, 10 - 15 gnd these pins must be dc grounded. 3 - 7 v1 - v5 see truth table and control voltage table. 9rf2 this pin is dc coupled and matched to 50 ohm. a blocking capacitor is required. 16 rf1 this pin is dc coupled and matched to 50 ohm. a blocking capacitor is required. 0.5 db lsb gaas mmic 5-bit digital positive control attenuator, 0.7 - 3.8 ghz
attenuators - smt 5 5 - 201 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 v01.1006 evaluation circuit board 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 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 hittite upon request. list of materials for evaluation pcb 104976 [1] * r2 - r6= 100 ohm. these resistors are optional and may be used to enhance decoupling of the rf path from the control inputs. item description j1 - j2 pcb mount sma connector j3 - j11 dc pin r1 5k ohm resistor, 0402 pkg. r2 - r6 100 ohm resistor, 0402 pkg. c1 - c2 0402 chip capacitor, select value for lowest frequency u1 hmc603qs16 / hmc603qs16e digital attenuators pcb [2] 104931 evaluation pcb [1] reference this number when ordering complete evaluation pcb [2] circuit board material: rogers 4350 hmc603qs16 / 603qs16e 0.5 db lsb gaas mmic 5-bit digital positive control attenuator, 0.7 - 3.8 ghz
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