voltage variable attenuator, 900 - 2500 mhz at65 - 0008 so - 8 v 5.00 electrical specifications : t a = 25 c, frequency: 5% bandwidth, 900 - 2500 mhz parameter test conditions units min. typ. max. insertion loss 2v db ? 1.2 1.5 vswr 0 to 10 db ratio ? 1.6:1 2.0:1 vswr 10 to 20 db ratio ? 1.8:1 2.0:1 attenuation 0v db 25 28 ? attenuation flatness vs frequency to 10 db to 20 db to 30 db db db db ? ? ? 0.1 0.15 1.2 0.2 0.3 1.5 switching speed 50% control to 90%/10% rf sec ? 2 5 linear operation 0 to 20 db dbm ? +17 +15 input ip 3 two - tone inputs to +5 dbm dbm +40 ? ? features n high third order intercept point n surface mount package n 25 db dynamic range n 5% operating bandwidth n pin diode based n sin gle control voltage description m/a - com?s at65 - 0008 is a pin diode based voltage variable attenuator. it is packaged in an 8 le ad small outline narrow body plastic, surface mount package. the attenuator has linear operating power and intercept point level s higher than gaas fet mmic based voltage variable attenuators. the vva is suited for use where low distortion and high linear operating power are required. the device operating frequency is selected in the 900 to 2500 mhz frequency band by defining the length of the t/4 (a quarter wave transmission line at the operating frequency) connected to pins 5 and 6. package outline conforms to jedec standard ms - 012aa.
voltage variable attenuator, 900 - 2500 mhz at65 - 0008 specifications subject to change without notice. n north america: tel. (800) 366 - 2266 n asia/pacific: tel.+ 81 - 44 - 844 - 8296 , fax + 81 - 44 - 844 - 8298 n europe: tel. +44 (1344) 869 595, fax+44 (1344) 300 020 visit www.macom.com for additional data sheets and product information. v 5.00 2 pin configuration p in no. function pin no. function 1 rf input 5 transmission line out 2 gnd 6 transmission line in 3 bias input 7 gnd 4 gnd 8 rf output absolute maximum ratings parameter absolute maximum max. input power +27 dbm operating voltage + 10 volts operating temperature - 40c to +85c storage temperature - 65c to +125c typical performance curves attenuation flatness, 3 db ip3 vs. attenuation -0.4 -0.2 0 0.2 0.4 fc - 5% fc - 3% fc fc + 3% fc + 5% frequency (ghz) deviation from nom. atten. (db) 30 35 40 45 50 55 0 db 3 db 6 db 10 db 15 db 20 db 22 db attenuation ip3 (db) recommended pcb configuration 1. circuit material - getek, .014 thick 2. 90 of length consists of printed transmission line plus effective length of internal circuitry and lead length.
voltage variable attenuator, 900 - 2500 mhz at65 - 0008 specifications subject to change without notice. n north america: tel. (800) 366 - 2266 n asia/pacific: tel.+ 81 - 44 - 844 - 8296 , fax + 81 - 44 - 844 - 8298 n europe: tel. +44 (1344) 869 595, fax+44 (1344) 300 020 visit www.macom.com for additional data sheets and product information. v 5.00 typical performance curves attenuation flatness, 10 db attenuation flatness, 6 db attenuation flatness, 15 db 3 attenuation flatness, 20 db rf input vswr vs. freq, ins. loss rf input vswr vs. freq, 3 db -0.4 -0.2 0 0.2 0.4 fc - 5% fc - 3% fc fc + 3% fc + 5% frequency (ghz) deviation from nom. atten. (db) -0.4 -0.2 0 0.2 0.4 fc - 5% fc - 3% fc fc + 3% fc + 5% frequency (ghz) deviation from nom. atten. (db) -0.4 -0.2 0 0.2 0.4 fc - 5% fc - 3% fc fc + 3% fc + 5% frequency (ghz) deviation from nom. atten. (db) -0.4 -0.2 0 0.2 0.4 fc - 5% fc - 3% fc fc + 3% fc + 5% frequency (ghz) deviation from nom. atten. (db) 1.4 1.6 1.8 2 fc - 5% fc - 3% fc fc + 3% fc + 5% frequency (ghz) vswr 1.4 1.6 1.8 2 fc - 5% fc - 3% fc fc + 3% fc + 5% frequency (ghz) vswr
voltage variable attenuator, 900 - 2500 mhz at65 - 0008 specifications subject to change without notice. n north america: tel. (800) 366 - 2266 n asia/pacific: tel.+ 81 - 44 - 844 - 8296 , fax + 81 - 44 - 844 - 8298 n europe: tel. +44 (1344) 869 595, fax+44 (1344) 300 020 visit www.macom.com for additional data sheets and product information. v 5.00 typical performance curves rf input vswr vs. freq, 10 db rf input vswr vs. freq, 6 db rf input vswr vs. freq, 15 db 4 rf input vswr vs. freq, 20 db typical insertion loss @ +25c typical insertion loss @ - 40c 1.4 1.6 1.8 2 fc - 5% fc - 3% fc fc + 3% fc + 5% frequency (ghz) vswr 1.4 1.6 1.8 2 fc - 5% fc - 3% fc fc + 3% fc + 5% frequency (ghz) vswr 1.4 1.6 1.8 2 1.52 1.51 1.48 1.45 1.44 frequency (ghz) vswr 1.4 1.6 1.8 2 fc - 5% fc - 3% fc fc + 3% fc + 5% frequency (ghz) vswr 0 1 2 fc - 5% fc - 3% fc fc + 3% fc + 5% frequency (ghz) loss (db) 0 1 2 fc - 5% fc - 3% fc fc + 3% fc + 5% frequency (ghz) loss (db)
voltage variable attenuator, 900 - 2500 mhz at65 - 0008 specifications subject to change without notice. n north america: tel. (800) 366 - 2266 n asia/pacific: tel.+ 81 - 44 - 844 - 8296 , fax + 81 - 44 - 844 - 8298 n europe: tel. +44 (1344) 869 595, fax+44 (1344) 300 020 visit www.macom.com for additional data sheets and product information. v 5.00 typical performance curves attenuation vs. voltage at fc +25c typical insertion loss @ +85c attenuation vs. voltage at fc ? 40c 5 attenuation vs. voltage at fc +85c ordering information part number package at65 - 0008 bulk packaging at65 - 0008tr tape and reel (1k reel) at65 - 0008 - tb units mounted on test board 0 1 2 fc - 5% fc - 3% fc fc + 3% fc + 5% frequency (ghz) loss (db) 0 5 10 15 20 25 30 0.50 0.70 0.90 1.10 1.30 1.50 1.70 1.90 voltage attenuation (db) 0 5 10 15 20 25 30 0.50 0.70 0.90 1.10 1.30 1.50 1.70 1.90 voltage attenuation (db) 0 5 10 15 20 25 0.50 0.70 0.90 1.10 1.30 1.50 1.70 1.90 voltage attenuation (db)
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