E-Series RF 4:1 Transformer 8.0 - 750 MHz ETK4-1T V3.00 Features ● ● ● SM-22 Surface Mount 4:1 Impedance Ratio CT on Secondary Description M/A-COM’s ETK4-1T is a 4:1 RF 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. Schematic PRI SEC Specifications @ 25°C Frequency Range: 8.0 - 750 MHz Parameter Insertion Loss (fL - f U) 70 - 250 MHz 15 - 600 MHz 8.0 - 750 MHz Amplitude Unbalance 8.0 - 750 MHz Phase Unbalance 8.0 - 750 MHz Maximum Mean (x) Sigma (σ) 2.0 dB 3.0 dB 4.0 dB 1.56 dB – – 0.007 – – 1.0 dB – – 20° – – Note: Mean and sigma calculated from average loss @ (f U - f L)/2 + f L. Ordering Information Part No. ETK4-1T ETK4-1TTR Packaging Tubes Tape & Reel Dimensions in ( ) are in mm. Unless Otherwise Noted: .x = ±0.04 (1.00) .xx = ±0.02 (0.50) .xxx = ±0.010 (0.250) Pin Configuration Pin No. Function 1 Secondary dot 2 Secondary CT 3 Secondary 4 Primary 5 Primary dot S 0934 D Specifications Subject to Change Without Notice. M/A-COM, Inc. North America: 1 Tel. (800) 366-2266 Fax (800) 618-8883 ■ Asia/Pacific: Tel. +81 (03) 3226-1671 Fax +81 (03) 3226-1451 ■ Europe: Tel. +44 (1344) 869 595 Fax +44 (1344) 300 020 ETK4-1T E-Series RF 4:1 Transformer V3.00 Absolute Maximum Ratings Parameter RF Power DC Current Operating/Storage Temp. Absolute Maximum 250 mW 30 mA -30°C to +85°C Typical Performance PHASE UNBALANCE vs FREQUENCY 360.0B 360.0A INSERTION LOSS vs FREQUENCY –13.0 –13.0 30.0 kHz 30.0 kHz B1 3.0 GHz A 3.0 GHz B freq freq 30.0 kHz 30.0 kHz A1 3.0 GHz A 3.0 GHz B freq freq PHASE UNBALANCE (0 to 360 deg) vs FREQ (30 kHz to 3 GHz) INSERTION LOSS (-3 to -13 dB) vs FREQ (30 kHz to 3 GHz) INPUT IMPEDANCE vs FREQUENCY AMPLITUDE UNBALANCE vs FREQUENCY B 5.0A pb02 pb01 A1 B1 0.0 0.0 avgs31 avgs21 –3.0B –3.0A Over Extended Bandwidth (30 kHz - 3.0 GHz) avgiprl avgab A1 30.0 kHz freq 3.0 GHz A AMP UNBALANCE (5 to -5 dB) vs FREQ (30 kHz to 3 GHz) Y–FS= 1.0 –5.0 B1 30.0 kHz freq 3.0 GHz B INPUT IMPEDANCE on SMITH CHART; FREQ (30 kHz to 3 GHz) 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: [email protected]. Specifications Subject to Change Without Notice. M/A-COM, Inc. 2 North America: Tel. (800) 366-2266 Fax (800) 618-8883 ■ Asia/Pacific: Tel. +81 (03) 3226-1671 Fax +81 (03) 3226-1451 ■ Europe: Tel. +44 (1344) 869 595 Fax +44 (1344) 300 020