skyworks solutions, inc. [781] 376-3000 ? fax [781] 376-3100 ? email sales@skyworksinc.com ? www.skyworksinc.com 1 specifications subject to change without notice. 3/02a hip3? variable attenuator 1.7?2.0 ghz features specified attenuation: 17.5?25 db total attenuation: 30 db typical low insertion loss: < 1.5 db low distortion: +40 dbm typical low phase shift and delay AV112-12 description the AV112-12 is a low distortion, pin diode variable attenuator in a small soic-8 package. the design is based on skyworks? unique series of hip3? components. the AV112-12 consists of a monolithic quadrature hybrid and a matched pair of pin diodes designed for low distortion attenuators. parameter min. typ. max. unit frequency 1.7 2.0 ghz insertion loss (0 ma control current) 1.0 1.5 db attenuation @ 1.2 ma control current (1.85 ghz) 17.5 25.0 db swr (all ports) 1.5 1.8 input 3rd order intercept point +37 +40 dbm relative phase shift up to 20 db attenuation 7 10 deg. group delay 0.6 0.9 ns electrical specifications at 25c 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 +15 dbm attenuation variation operating characteristics at 25c (0, +5 v) 1. all measurements made in a 50 ? system. 2. driver pulse ? 0?4 ma square wave. soic-8 soic-8
2 skyworks solutions, inc. [781] 376-3000 ? fax [781] 376-3100 ? email sales@skyworksinc.com ? www.skyworksinc.com specifications subject to change without notice. 3/02a hip3? variable attenuator 1.7?2.0 ghz AV112-12 characteristic value rf input power 0.5 w cw, 4 w @ 12.5% duty cycle control current 50 ma per diode operating temperature -65 to +125c storage temperature -65 to +125c maximum reverse diode voltage -100 v electrostatic discharge +125 v absolute maximum ratings note: operating this device above any of these parameters may cause irreversible damage. 123 4 control current gnd 220 pf rf in gnd 680 ? 876 5 gnd 220 pf 100 nh 100 nh rf out control current current source gnd pin out loss (db) current (ma) attenuation vs. control current -45 -40 -35 -30 -25 -20 -15 -10 -5 0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 1700 mhz 1850 mhz 2000 mhz return loss (db) current (ma) input return vs. current control -40 -35 -30 -25 -20 -15 -10 -5 0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 1700 mhz 1850 mhz 2.0 ghz loss (db) frequency (ghz) attenuation vs. frequency -25 -20 -15 -10 -5 0 1.70 1.75 1.80 1.85 1.90 1.95 2.00 0 ma 0.5 ma 1.0 ma 2.0 ma return loss (db) current (ma) output return vs. current control -40 -35 -30 -25 -20 -15 -10 -5 0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 1700 mhz 1850 mhz 2.0 ghz typical performance data
hip3? variable attenuator 1.7?2.0 ghz AV112-12 skyworks solutions, inc. [781] 376-3000 ? fax [781] 376-3100 ? email sales@skyworksinc.com ? www.skyworksinc.com 3 specifications subject to change without notice. 3/02a 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 control current control current rf out rf in connection diagram material is 10 mil fr4.
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