alpha industries, inc. [781] 935-5150 ? fax [617] 824-4579 ? email sales@alphaind.com ? www.alphaind.com 1 specifications subject to change without notice. 6/01a hip3? variable attenuator 0.80?1.00 ghz features +50 dbm ip3 typical low loss 1 db typical attenuation 30 db typical good vswr <1.5:1 typical small soic-8 package AV101-12 description the AV101-12 is a current controlled variable attenuator from alpha?s series of hip3? components. it is designed to meet the wide dynamic range required in spread spectrum wireless base station applications. a monolithic quadrature hybrid is teamed with a silicon pin diode pair in a plastic surface mount package reducing size and assuring consistency from part to part. parameter min. typ. max. unit frequency 0.80 1.00 ghz insertion loss (0 ma control current) 1 1.5 db attenuation @ 3.0 ma control current (900 mhz) 18.5 21.5 db vswr all ports 1.5 1.8 input 3rd order intercept +47 +50 dbm group delay 0.9 1.2 ns electrical specifications at 25c soic-8 soic-8 parameter 1 condition frequency min. typ. max. unit switching characteristics 2 rise, fall (10/90% or 90/10% rf) 5 s on, off (50% ctl to 90/10% rf) 8 s video feedthru (peak) 5 mv maximum input power for <1 db attenuation variation +15 dbm operating characteristics at 25c (0, +5 v) 1. all measurements made in a 50 ? system, unless otherwise specified. 2. 0 ? 4 ma square wave total control current.
2 alpha industries, inc. [781] 935-5150 ? fax [617] 824-4579 ? email sales@alphaind.com ? www.alphaind.com specifications subject to change without notice. 6/01a hip3? variable attenuator 0.80?1.00 ghz AV101-12 vswr (:1) input/output vswr vs. current @ 800 mhz 1.0 1.1 1.2 1.3 1.4 1.5 0.0000 0.0010 0.0020 0.0030 0.0040 0.0050 current (amps) input output vswr (:1) input/output vswr vs. current @ 900 mhz 1.0 1.1 1.2 1.3 1.4 1.5 current (amps) input output 0.0000 0.0010 0.0020 0.0030 0.0040 0.0050 attenuation (db) 0.0000 0.0010 0.0020 0.0030 0.0040 0.0050 attenuation vs. current -70.0 -50.0 -60.0 -40.0 -30.0 -20.0 -10.0 0.0 current (amps) 800 mhz 900 mhz 1000 mhz attenuation (db) 0.80 0.85 0.90 0.95 1.00 attenuation vs. frequency -25.0 -20.0 -15.0 -10.0 -5.0 0.0 frequency (ghz) 0.0 ma 0.2 ma 0.9 ma 1.9 ma 2.8 ma 3.5 ma input/output vswr vs. current @ 1000 mhz 1.0 1.1 1.2 1.3 1.4 1.5 current (amps) input output vswr (:1) 0.0000 0.0010 0.0020 0.0030 0.0040 0.0050 diode current (ma) 400 600 800 1000 typical pin diode current vs. voltage 0.01 0.1 1 10 diode voltage (mv) typical performance data
hip3 ? variable attenuator 0.80 ? 1.00 ghz AV101-12 alpha industries, inc. [781] 935-5150 ? fax [617] 824-4579 ? email sales@alphaind.com ? www.alphaind.com 3 specifications subject to change without notice. 6/01a characteristic value rf input power 0.5 w cw, 4 w @ 12.5% duty cycle control current 50 ma per diode operating temperature -40 to +85 c storage temperature -40 to +85 c maximum reverse diode voltage -10 v electrostatic discharge +125 v absolute maximum ratings note: operating this device above any of these parameters may cause irreversible damage. recommended board layout 0.1630 0.0200 dia. via 4 places 0.0190 typ. 0.0555 typ. soic-8 0.049 (1.24 mm) 0.016 (0.41 mm) 0.016 max. (0.41 mm) x 45? chamfer pin 1 0.197 (5.00 mm) 0.189 (4.80 mm) 0.068 (1.73 mm) max. 0.010 (0.25 mm) 0.004 (0.10 mm) 0.010 (0.25 mm) 0.007 (0.17 mm) 0.158 (4.00 mm) 0.150 (3.80 mm) 8? max. 0.020 (0.51 mm) max. 0.244 (6.20 mm) 0.228 (5.80 mm) 0.050 (1.27 mm) bsc pin 8 pin 1 indicator 123 4 control current gnd 220 pf rf in gnd 680 ? 876 5 gnd 220 pf 100 nh 100 nh rf out control current gnd pin out control current control current rf out rf in connection diagram material is 10 mil fr4.
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