e-series rf 4:1 transformer 890 - 960 mhz ETC4-1T-11 m/a-com, inc. north america: tel. (800) 366-2266 n asia/paci?: tel. +81 (03) 3226-1671 n europe: tel. +44 (1344) 869 595 fax (800) 618-8883 fax +81 (03) 3226-1451 fax +44 (1344) 300 020 1 speci?ations subject to change without notice. v3.00 features surface mount 4:1 impedance ratio ct on secondary description m/a-com? ETC4-1T-11 is a 4:1 rf transformer in a low-cost, surface mount package. ideally suited for high volume cellular and wireless applications. typical appli- cations include single to balanced mode conversion and impedance matching. schematic speci?ations @ 25? frequency range: 890 - 960 mhz note: mean and sigma calculated from average loss at @ (f u - f l )/2 + f l . ordering information part no. packaging ETC4-1T-11 tubes ETC4-1T-11tr tape & reel sm-22 pin con?uration pin no. function 1 secondary 2 secondary ct 3 secondary dot 4 primary dot 5 primary l l l s 0840 d dimensions in ( ) are in mm. unless otherwise noted: .x = ?.04 (1.00) .xx = ?.02 (0.50) .xxx = ?.010 (0.250) parameter maximum mean (x) sigma ( s ) insertion loss (f l - f u ) 1.75 db 0.22 db 0.094 amplitude unbalance 3.0 db phase unbalance 20
e-series rf 4:1 transformer ETC4-1T-11 v3.00 m/a-com, inc. north america: tel. (800) 366-2266 n asia/paci?: tel. +81 (03) 3226-1671 n europe: tel. +44 (1344) 869 595 fax (800) 618-8883 fax +81 (03) 3226-1451 fax +44 (1344) 300 020 2 speci?ations subject to change without notice. typical performance over extended bandwidth (30 khz - 3 ghz) phase unbalance vs frequency insertion loss vs frequency note: all measurements performed on hewlett packard 8753d network analyzer (201 sample points, linear scale) in a 50 ohm coplanar waveguide environment. tables created using mds software. s-parameter data available by e-mail. send your request to: eurotec@corp.macom.com. parameter absolute maximum rf power 250 mw dc current 30 ma operating/storage temp. -20? to +85? absolute maximum ratings amplitude unbalance vs frequency input impedance vs frequency a1 b1 ?0.0 avgs31 0.0b ?0.0 avgs21 0.0a b1 a1 0.0 avgpb2 360.0b 0.0 avgpb1 360.0a 30.0 khz freq 3.0 ghz a a1 ?.0 avgab 5.0a 30.0 khz freq 3.0 ghz b y?s= 1.0 avgiprl b 30.0 khz freq 3.0 ghz a 30.0 khz freq 3.0 ghz b 30.0 khz freq 3.0 ghz a 30.0 khz freq 3.0 ghz b b1
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