4:1 Tx Line Transformer 50-870MHz characterized in a 2.66:1 Z environment SM-152 Package Features • • • Surface Mount 4:1 Impedance Available on Tape & Reel Dimensions in inches [mm] Tolerance: .xx ± .02, .xxx ± .010 Description M/A-COM’s MABACT0017 is a 4:1 RF transmission line transformer in a low cost, surface mount package. The windings of the MABACT0017 are welded to the package substrate for improved reliability and reduced lead content. This Transformer is ideally suited for CATV and Satellite STB/ Subscriber applications. Ordering Information Part Number MABACT0017 Package Tape & Reel Electrical Specifications @ 25°C, Z0 = 75 Ohms Frequency Range 50 - 870 MHz Insertion Loss (Below the ref level) Amplitude Unbalance Phase Unbalance Input Return Loss Test Conditions Nominal Units Min. Typ. Max. 50 - 150 MHz 150 - 650 MHz 650 - 870 MHz 50 - 250 MHz 250 - 650 MHz 650 - 870 MHz 50 - 150 MHz 150 - 450 MHz 150 - 450 MHz 50 - 870 MHz — — — — — — — — — — dB dB dB dB dB dB ° ° ° dB — — — — — — — — — — — — — 0.1 0.2 0.3 2° 5° 8° 10 2.2 1.5 2.0 0.2 0.4 0.6 5° 10° 15° 8 Note: Specifications subject to change without notice. 1 4:1 Transmission Line Transformer, 50 – 870 MHz MABACT0017 Absolute Maximum Ratings Operating Characteristics Absolute Maximum Function Pin No. 1 Watt Primary Dot (Input) 5 0.125 Watt Primary (Ground) 4 Storage Temperature -40° C to +85°C Secondary Dot (output port1) 1 Operating Temperature -40° C to +80°C Secondary (output port2) 3 Center Tap (Ground) 2 Parameter RF Power Internal Load Dissipation Typical Performance @ +25° C Insertion Loss Port 1 (Pin 5 to 4) Schematic MABACT0017 Insertion Loss 1 0 -0.25 -0.5 dB -0.75 -1 -1.25 -1.5 -1.75 -2 50 150 250 350 450 550 650 750 850 MHz Insertion Loss port 2 (Pin 4 to 3) MABACT0017 Insertion Loss 2 0 -0.25 -0.5 dB -0.75 -1 -1.25 -1.5 -1.75 -2 50 150 250 350 450 550 650 750 850 MHz Note: Adjusted the Insertion Loss plots to remove the reference level. Rev A Specifications subject to change without notice. n North America: Tel. (800) 366 -2266, Fax (800) 618 -8883 n Asia/Pacific: Tel.+ 81-44-844 -8296 , Fax +81-44-844 -8298 n Europe: Tel. +44 (1908) 574 200, Fax+44 (1908) 574 300 Visit www.macom.com for additional data sheets and product information. 2 4:1 Transmission Line Transformer, 50 – 870 MHz MABACT0017 Amplitude Unbalance Phase Unbalance MABACT0017 Amp Balance 0.5 MABACT0017 Phase Balance 0.4 180 0.3 179 178 0.2 177 Degrees dB 0.1 176 0 175 -0.1 174 -0.2 173 -0.3 172 -0.4 171 -0.5 50 170 150 250 350 450 550 650 750 850 50 150 250 350 450 550 650 750 850 MHz MHz Input Return Loss MABACT0017 Return Loss 0 -2 -4 -6 dB -8 -10 -12 -14 -16 -18 -20 50 150 250 350 450 550 650 750 850 MHz Rev A Specifications subject to change without notice. n North America: Tel. (800) 366 -2266, Fax (800) 618 -8883 n Asia/Pacific: Tel.+ 81-44-844 -8296, Fax +81-44-844 -8298 n Europe: Tel. +44 (1908) 574 200, Fax+44 (1908) 574 300 Visit www.macom.com for additional data sheets and product information. 3