hrf-at4611 ________________________________________________________________________________________________________ web site: www.mysoiservices.com honeywell email: mysoiservices@honeywell.com solid state electronics center 31.5 db, dc-4ghz, 6 bit serial digital attenuator features x very low dc power consumption x attenuation in steps from 0.5 db to 31.5 db x single or dual power supply voltages x serial data interface x 50 ohm compatible impedance x space saving vqfn surface mount packaging product description the honeywell hrf-at4611 is a 6-bit digital attenuator that is ideal for use in broadband communication system applications that require accuracy, speed and low power consumption. the hrf-at4611 is manufactured with honeywell's patented silicon on insulator (soi) cmos manufacturing technology, which provides the performance of gaas with the economy and integration capabilities of conventional cmos hrf-at4611 in vqfn package rf electrical specifications @ + 25 o c results @ vdd = 5.0 +/- 10%, vss = 0 unless otherwise stated, z0 = 50 ohms contact honeywell for relative performance at other supply configurations parameter test condition frequency minimum typical maximum units insertion loss dc ? 1.0 ghz 2.5 ghz 3.0 ghz 4.0 ghz 2.5 3.0 3.6 5.5 2.9 3.5 3.9 5.8 db db db db 1db compression vss = 0v, input power dc ? 2.0 ghz 24 dbm 1db compression vss = - vdd, input power dc ? 2.0 ghz 29 dbm input ip3 vss = 0v two-tone inputs up to +5 db @ 0 db attenuation dc ? 2.0 ghz 38 dbm input ip3 v ss = - v dd two-tone inputs up to + 5 dbm @ 0 dbm attenuation dc ? 2.0 ghz >38 dbm return loss* any bit or combination dc - 3.0 ghz 11 db attenuation accuracy all attenuation states all attenuation states all attenuation states all attenuation states dc ? 1.0 ghz 2.5 ghz 3.0 ghz 4.0 ghz +/-(0.3 + 3% of programmed il) +/-(0.3 + 3% of programmed il) +/-(0.4 + 5% of programmed il) +/-(0.4 + 5.5% of programmed il) db db db db trise, tfall* ton, toff (tpd) transients 10% to 90% 50% cntl to 90%/10%rf in-band 10 15 30 ns ns mv t clock period (tprd)* t high / t low = ? minimum clock period 50 ns t data set up (tsup)* set up to rising edge of clock 5 ns t data hold (thld)* data hold after rising edge of clock 2 ns t latch set up (tlsup*) data set up to rising edge of oe 5 ns 0.01uf decoupling capacitors required on power supply rails. *b y desi g n 12001 state highway 55 2004 4611w published august 2004 page 1 plymouth, minnesota 55441-4799 1-800-323-8295
hrf-at4611 ________________________________________________________________________________________________________ web site: www.mysoiservices.com honeywell email: mysoiservices@honeywell.com solid state electronics center functional schematic rf in rf out clk data oe 16db 8db 4db 2db 1db .5db esd, registers, buffer, level shift dc electrical specifications @ + 25 o c parameter minimum typical maximum units v dd 3.3 1 5.0 5.5 v v ss -5.0 v i dd power supply current 35 ua cmos logic level (0) 0 0.8 v cmos logic level (1) v dd ? 0.8 v dd v input leakage current 10 ua note 1, the performance curves are for vdd = +5.0 +/- 10% absolute maximum ratings 2 parameter absolute maximum units input power + 35 dbm v dd +6.0 v v ss -5.5 v esd voltage 400 v operating temperature -40 to +85 degrees c storage temperature -65 to +125 degrees c digital inputs v dd +0.6 max to -0.6 min v (note 2) operation of this device beyond an y of these parameters may cause permanent damage. latch-up: unlike conventional cmos digital attenuators, honeywell's hrf-at4611 is immune to latch-up. esd protection: although the hrf-at4611 contains esd protection circuitry on all digital inputs, conventional precautions should be taken to ensure that the absolute maximum ratin g s are not exceeded. 12001 state highway 55 2004 4611w published august 2004 page 2 plymouth, minnesota 55441-4799 1-800-323-8295
hrf-at4611 ________________________________________________________________________________________________________ web site: www.mysoiservices.com honeywell email: mysoiservices@honeywell.com solid state electronics center package outline drawing pin configuration serial data load serial data is shifted into the register on the rising edge of clock, msb first. the oe rising edge must occur prior to any additional rising clock edges. see the electrical spec table for ac parameters. this package conforms to the jedec standard mo-220, 4 x 4 mm 16 lead body dimensions. see application note 310, vqfn surface mount application , on our web site at www.mysoiservices.com for assembly recommendations. pin function pin function 1 vdd 9 ground 2 ground 10 rf output 3 rf input 11 ground 4ground12 vss 5 ground 13 ground 6 ground 14 oe 7 ground 15 clk 8ground16 data note : bottom ground plate must be grounded for proper rf performance. 12001 state highway 55 2004 4611w published august 2004 page 3 plymouth, minnesota 55441-4799 1-800-323-8295
hrf-at4611 ________________________________________________________________________________________________________ web site: www.mysoiservices.com honeywell email: mysoiservices@honeywell.com solid state electronics center truth table s5 s4 s3 s2 s1 s0 output 0 0 0 0 0 0 1 1 0 0 0 0 0 1 0 1 0 0 0 0 1 0 0 1 0 0 0 1 0 0 0 1 0 0 1 0 0 0 0 1 0 1 0 0 0 0 0 1 reference input 0.5 db 1 db 2 db 4 db 8 db 16 db 31.5 db operation: data on serial input d is clocked into internal registers on the low to high transition of th e clock signal (ck). the register output is enabled when output enable (oe) is in the low state. "0" = cmos low, "1" = cmos high. evaluation circuit board hrf-at4611 evaluation board honeywell's evaluation board provides an easy to use method of evaluating the rf performance of our attenuator. simply connect power, dc and rf signals to be measuring attenuato r performance in less than 10 minutes. evaluation circuit board layout design details item description pcb impedance matched multi-layer fr4 attenuator hrf-at4611 digital attenuator chip capacitor panasonic model ecu-e1c103kbq capacitor, .01uf 0402 10% 16v rf connector johnson connectors model 142-0701-801 sma rf coaxial connector dc pin mil-max model 800-10-064-10-001 header pins 12001 state highway 55 2004 4611w published august 2004 page 4 plymouth, minnesota 55441-4799 1-800-323-8295
hrf-at4611 ________________________________________________________________________________________________________ web site: www.mysoiservices.com honeywell email: mysoiservices@honeywell.com solid state electronics center evaluation circuit board connections hrf-at4611 evaluation board top view hrf-at4611 honeywell rf in rf out vdd vss gnd gnd data clk oe refer to hrf-at4611 product spec. for serial data load information (http://www.ssec.honeywell.com/microwave/products/attenuators.html) performance curves insertion loss this insertion loss curve represents the min/max conditions for the ?0? pass state versus all processing and temperature conditions. the min case is at ?40c with the ?fast? processing conditions. the max case is at +85c with the ?slow? processing conditions. a ll other combinations fall within that band. the typical 25c case is labeled +25c tt. 12001 state highway 55 2004 4611w published august 2004 page 5 plymouth, minnesota 55441-4799 1-800-323-8295
hrf-at4611 ________________________________________________________________________________________________________ web site: www.mysoiservices.com honeywell email: mysoiservices@honeywell.com solid state electronics center return loss this return loss set of curves represents the combination of all return loss cases fo r all attenuation settings. all cases are bette r than ?14db return loss at 4ghz. step accuracy at4611 step accuracy vs attenuation state -1.5 -1.3 -1.1 -0.9 -0.7 -0.5 -0.3 -0.1 0.1 0.3 0.5 -3 2 7 12 17 22 27 32 programmed attenuation (db) step to step delta (db) stepacc@0.01ghz stepacc@0.1ghz stepacc@0.5ghz stepacc@1ghz stepacc@2ghz stepacc@3ghz stepacc@4ghz 12001 state highway 55 2004 4611w published august 2004 page 6 plymouth, minnesota 55441-4799 1-800-323-8295
hrf-at4611 ________________________________________________________________________________________________________ web site: www.mysoiservices.com honeywell email: mysoiservices@honeywell.com solid state electronics center relative accuracy compression the p1db curve shows all states with a p1db compression at approximately 23db input power. the conditions for this curve are vdd = +5.0v and vss = 0v. for highe r p1db compression values, supply vss with a negative voltage as shown in the next curve. at4611 relative accuracy vs attenuation -1.5 -1 -0.5 0 0.5 1 1.5 -3 2 7 12 17 22 27 32 programmed attenuation (db) relative accuracy (db) relacc@0.01ghz relacc@0.1ghz relacc@0.5ghz relacc@1ghz relacc@2ghz relacc@3ghz relaccmax relaccmin 12001 state highway 55 2004 4611w published august 2004 page 7 plymouth, minnesota 55441-4799 1-800-323-8295
hrf-at4611 ________________________________________________________________________________________________________ web site: www.mysoiservices.com honeywell email: mysoiservices@honeywell.com solid state electronics center the p1db curve shows all states with a p1db compression at approximately 31db input power. the conditions for this curve are vdd = +5.0v and vss = -5.0v. ordering information ordering number delivery method units per shipment HRF-AT4611-TR hrf-at4611-e on tape and reel 3 on individual engineering evaluation board 2500 units per reel one board per box (note 3) call honeywell for details honeywell reserves the right to make changes to improve reliability, function or design. honeywell does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others. 12001 state highway 55 2004 4611w published august 2004 page 8 plymouth, minnesota 55441-4799 1-800-323-8295
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