attenuators - smt 5 5 - 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 general description features functional diagram rohs compliant product 1 db lsb steps to 31 db single positive control per bit 0.2 db typical bit error miniature msop 10 package: 14.8mm 2 included in the hmc-dk004 designer?s kit electrical speci cations, t a = +25 c, vdd = +3v to +5v & vctl = 0/vdd (unless otherwise stated) typical applications the HMC273MS10G(e) is a general purpose broadband 5-bit positive control gaas ic digital attenuator in a 10 lead msop plastic package. covering 0.7 to 3.8 ghz, the insertion loss is typically less than 2.5 db. the attenuator bit values are 1 (lsb), 2, 4, 8, and 16 db for a total attenuation of 31 db. accuracy is excellent at 0.2 db typical with an iip3 of up to +48 dbm. five bit control vol- tage inputs, toggled between 0 and +3 to +5 volts, are used to select each attenuation state. a single vdd bias of +3 to +5 volts applied through an external 5k ohm resistor is required. the HMC273MS10G(e) is ideal for: ? cellular; umts/3g infrastructure ? ism, mmds, wlan, wimax ? microwave radio & vsat ? test equipment and sensors parameter frequency min. typical max. units insertion loss 0.7 - 1.4 ghz 1.4 - 2.3 ghz 2.3 - 2.7 ghz 2.7 - 3.7 ghz 3.7 - 3.8 ghz 1.8 2.3 2.8 3.5 3.9 2.4 2.9 3.4 4.2 4.4 db db db db db attenuation range 0.7 - 3.8 ghz 31 db return loss (rf1 & rf2, all atten. states) 0.7 - 1.4 ghz 1.4 - 2.7 ghz 2.7 - 3.8 ghz 11 12 10 17 20 14 db db db attenuation accuracy: (referenced to insertion loss) all attenuation states all attenuation states all attenuation states all attenuation states 0.7 - 1.4 ghz 1.4 - 2.2 ghz 2.2 - 2.7 ghz 2.7 - 3.8 ghz (0.30 + 3% of atten. setting) max (0.30 + 4% of atten. setting) max (0.40 + 5% of atten. setting) max (0.50 + 5% of atten. setting) max db db db db input power for 0.1 db compression vdd = 5v vdd = 3v 0.7 - 3.8 ghz 27 22 dbm dbm input third order intercept point (two-tone input power = 0 dbm each tone) vdd = 5v vdd = 3v 0.7 - 3.8 ghz 48 46 dbm dbm switching characteristics trise, tfall (10/90% rf) ton, toff (50% ctl to 10/90% rf) 0.7 - 3.8 ghz 560 600 ns ns 1 db lsb gaas mmic 5-bit digital attenuator, 0.7 - 3.8 ghz HMC273MS10G / 273ms10ge v04.0907
attenuators - smt 5 5 - 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 -5 -4 -3 -2 -1 0 0.5 1 1.5 2 2.5 3 3.5 4 +25 c +85 c -40 c insertion loss (db) frequency (ghz) bit error vs. attenuation state return loss rf1, rf2 (only major states are shown) insertion loss vs. temperature normalized attenuation (only major states are shown) -1 -0.5 0 0.5 1 0 4 8 12 16 20 24 28 32 bit error (db) attenuation state (db) 0.9 ghz 1.9 ghz 2.4 ghz 3.5 ghz -30 -25 -20 -15 -10 -5 0 0.5 1 1.5 2 2.5 3 3.5 4 return loss (db) frequency (ghz) 1 db il 2 db 4 db 8 db 16 db 31 db -35 -30 -25 -20 -15 -10 -5 0 0.5 1 1.5 2 2.5 3 3.5 4 normalized attenuation (db) frequency (ghz) note: all data typical over voltage (+3v to +5v) bit error vs. frequency (only major states are shown) -1 -0.5 0 0.5 1 1.5 2 0.5 1 1.5 2 2.5 3 3.5 4 bit error (db) frequency (ghz) 1,4,8 db 31 db 2 db 16 db -40 -20 0 20 40 60 80 100 0.5 1 1.5 2 2.5 3 3.5 4 relative phase (deg) frequency (ghz) 1,2,4,8 db 16 db 31 db relative phase vs. frequency (only major states are shown) 1 db lsb gaas mmic 5-bit digital attenuator, 0.7 - 3.8 ghz HMC273MS10G / 273ms10ge v04.0907
attenuators - smt 5 5 - 24 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 control voltages truth table application circuit 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 6 or pin 10. control voltage input attenuation setting rf1 - rf2 v1 16 db v2 8 db v3 4 db v4 2 db v5 1 db high high high high high reference i.l. high high high high low 1 db high high high low high 2 db high high low high high 4 db high low high high high 8 db low high high high high 16 db low low low low low 31 db max. atten. any combination of the above states will provide an attenuation approximately equal to the sum of the bits selected. state bias condition low 0 to +0.2 v @ 20 ua max high vdd 0.2v @ 100 ua max note: vdd = +3v to 5v 0.2v -1.2 -0.8 -0.4 0 0.4 0.8 1.2 0.5 1 1.5 2 2.5 3 3.5 4 step error (db) frequency (ghz) worst case step error between successive attenuation states v04.0907 1 db lsb gaas mmic 5-bit digital attenuator, 0.7 - 3.8 ghz HMC273MS10G / 273ms10ge
attenuators - smt 5 5 - 25 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 absolute maximum ratings outline drawing control voltage (v1 - v5) vdd + 0.5 vdc bias voltage (vdd) +8.0 vdc channel temperature 150 c continuous pdiss (t=85c) (derate 6mw/c above 85c) 0.4 w thermal resistance 163 c/w storage temperature -65 to +150 c operating temperature -40 to +85 c rf input power (0.7 - 3.7 ghz) +30 dbm esd sensitivity (hbm) class 1a electrostatic sensitive device observe handling precautions v04.0907 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 and ground paddle must be soldered to pcb rf ground. part number package body material lead finish msl rating package marking [3] HMC273MS10G low stress injection molded plastic sn/pb solder msl1 [1] h273 xxxx HMC273MS10Ge rohs-compliant low stress injection molded plastic 100% matte sn msl1 [2] h273 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 1 db lsb gaas mmic 5-bit digital attenuator, 0.7 - 3.8 ghz HMC273MS10G / 273ms10ge
attenuators - smt 5 5 - 26 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 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 and exposed ground paddle should be connected directly to the ground plane similar to that shown below. a sufficient number of via holes should be used to connect the top and bottom ground planes. the evaluation circuit board as shown is available from hittite microwave corporation upon request. list of materials for evaluation pcb 103393 [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 - j6 dc pin r1 5k ohm resistor, 0402 chip r2, r3, r4 100 ohm resistor, 0402 chip c1, c2 0402 chip capacitor, select for lowest frequency of operation u1 HMC273MS10G / HMC273MS10Ge digital attenuator pcb [2] 103391 evaluation pcb 1.5 x 1.5 [1] reference this number when ordering complete evaluation pcb [2] circuit board material: rogers 4350 v04.0907 1 db lsb gaas mmic 5-bit digital attenuator, 0.7 - 3.8 ghz HMC273MS10G / 273ms10ge
attenuators - smt 5 5 - 27 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 notes: v04.0907 1 db lsb gaas mmic 5-bit digital attenuator, 0.7 - 3.8 ghz HMC273MS10G / 273ms10ge
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