ETC4-1-2 E-Series RF 1:4 Flux Coupled Step-up Transformer 2.0 - 800 MHz Features • • • • SM-22 Package Surface Mount 1:4 Impedance Ratio CT on Secondary Available on Tape & Reel 0.030 (0.762) 0.050 (1.27) 0.150 (3.81) 0.030 (0.762) 0.150 (3.81) 0.150 MAX (3.81 MAX) 0.065 (1.65) 0.030 (0.762) 0.055 0.190 (1.397) (4.83) Description M/A-COM’s ETC4-1-2 is a 1:4 RF flux coupled step-up transformer in a low cost, surface mount package. Ideally suited for high volume cellular and wireless applications. Typical applications include single to balanced mode conversion and impedance matching. 0.100 (2.54) 0.130 (3.30) 0.030 (0.762) Schematic Primary Dot 4 3 Secondary Dot 3 turns 3 turns 2 Secondary CT 3 turns Primary 5 3 turns 1 Secondary Electrical Specifications @25°C Parameter Units Nominal Maximum Mean (x) Sigma (σ) Frequency Range 2.0 - 800 MHz — — — — Insertion Loss (fL - fU) 10 - 100 MHz 5.0 - 600 MHz 2.0 - 800 MHz dB dB dB — — — 1.0 2.0 3.0 — 1.21 — — 0.032 — Amplitude Unbalance 10 - 100 MHz 2.0 - 800 MHz dB dB — — 0.25 1.0 — — — — Degrees Degrees — — 2.0 10 — — — — Phase Unbalance 10 - 500 MHz 2.0 - 800 MHz Note: Mean and Sigma calculated from average loss at @ 105 MHz. Please Note that the photograph above indicates typical package only, not actual unit. V2.00 S 0258 L ETC4-1-2 Functional Configuration Absolute Maximum Ratings Parameter Absolute Maximum Function Pin No. RF Power 250 mW Secondary 1 DC Current 30 mA Secondary CT 2 Operating Temperature -20°C to +85°C Secondary Dot 3 Storage Temperature -20°C to +85°C Primary Dot 4 Primary 5 Typical Performance Over Extended Bandwidth (30kHz - 1.0GHz) Insertion Loss Phase Unbalance Amplitude Unbalance Input Impedance 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. V2.00 S 0258 L