passives - smt 12 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 hmc656lp2e to hmc658lp2e wideband fixed attenuator family, dc - 25 ghz hmc656lp2e / hmc657lp2e / hmc658lp2e v01.0308 general description features functional diagrams 3 attenuator products: 10, 15, & 20 db fixed attenuation levels wide bandwidth: dc - 25 ghz excellent attenuation accuracy power handling: +25 dbm 6 lead 2x2mm smt package: 4mm 2 electrical specifcations, t a = +25 c, 50 ohm system typical applications the hmc656lp2e - hmc658lp2e are ideal for: ? fiber optics ? microwave radio ? military & space ? test & measurement ? scientifc instruments ? rf / microwave circuit prototyping the hmc656lp2e / 657lp2e / 658lp2e are a line of wideband fxed value smt 50 ohm matched attenuators which offer relative attenuation levels of 10, 15 and 20 db respectively. these passive attenuators are ideal for military, test equipment, and other wideband applications where extremely fat attenuation, and excellent vswr vs. frequency are required. these wideband attenuators handle up to +25 dbm of input power, and are compatible with high volume surface mount manufacturing techniques. part number attenuator value return loss (typical) attenuation tolerance [1] temperature coefficient (typical) [2] units dc - 25 ghz hmc656lp2e 10 12 1.5 0.0004 db hmc657lp2e 15 14 2.0 0.0006 db hmc658lp2e 20 12 2.0 0.0004 db [1] attenuation tolerance is valid over temperature. [2] temperature coefficient units are db/ c .
passives - smt 12 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 attenuation vs. temperature hmc656lp2e to hmc658lp2e v01.0308 wideband fixed attenuator family, dc - 25 ghz hmc656lp2e / hmc657lp2e / hmc658lp2e return loss absolute maximum ratings part number hmc656lp2e hmc657lp2e hmc658lp2e units rf input power (cw) 25 25 25 dbm dc voltage terminated 4.9 4.4 4.8 v dc voltage open 5.3 4.6 4.9 v storage temperature -65 to +150 c operating temperature -40 to +85 c esd sensitivity (hbm) class 1b class 1b class 1b electrostatic sensitive device observe handling precautions -25 -20 -15 -10 -5 0 0 5 10 15 20 25 30 attenuation (db) frequency (ghz) hmc656lp2 hmc657lp2 hmc658lp2 -30 -25 -20 -15 -10 -5 0 0 5 10 15 20 25 30 return loss (db) frequency (ghz) hmc656 hmc658 hmc657
passives - smt 12 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 hmc656lp2e to hmc658lp2e v01.0308 wideband fixed attenuator family, dc - 25 ghz hmc656lp2e / hmc657lp2e / hmc658lp2e outline drawing part number package body material lead finish msl rating package marking [3] hmc656lp2 through hmc658lp2 low stress injection molded plastic sn/pb solder msl1 [1] nnn xxx hmc656lp2e through hmc658lp2e rohs-compliant low stress injection molded plastic 100% matte sn msl1 [2] nnn xxx [1] max peak refow temperature of 235 c [2] max peak refow temperature of 260 c [3] 3-digit lot number xxx package information 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. pin number function description interface schematic 1, 3, 4, 6 gnd package bottom must be connected to rf/dc ground. 2, 5 rf1, rf2 this pin is dc coupled and matched to 50 ohms. use dc blocking capacitors if the input / output signals have non-zero dc potential pin descriptions
passives - smt 12 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 hmc656lp2e to hmc658lp2e v01.0308 wideband fixed attenuator family, dc - 25 ghz hmc656lp2e / hmc657lp2e / hmc658lp2e evaluation pcb list of materials for evaluation pcb 119197 [1] item description j1 - j2 pcb mount sma connector u1 hmc656lp2e through hmc658lp2e passive attenuator pcb [2] 119194 evaluation pcb [1] reference this number when ordering complete evaluation pcb [2] circuit board material: rogers 4350 the circuit board used in the fnal application should be generated with proper rf circuit design tech - niques. signal lines at the rf port should have 50 ohm impedance and the package ground leads and exposed paddle should be connected directly to the ground plane similar to that shown above. the eval - uation circuit board shown above is available from hittite microwave corporation upon request.
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