E-Series RF 4:1 Transformer 1.0 - 350 MHz ETC4-1 V3.00 Features ● ● ● SM-22 Surface Mount 4:1 Impedance Ratio CT on Secondary Description M/A-COM’s ETC4-1 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: 1.0 - 350 MHz Parameter Insertion Loss (fL - f U) 5.0 - 100 MHz 2.0 - 300 MHz 1.0 - 350 MHz Amplitude Unbalance 1.0 - 350 MHz 5.0 - 100 MHz Phase Unbalance 5.0 - 100 MHz 1.0 - 350 MHz Maximum Mean (x) Sigma (σ) 1.0 dB 2.0 dB 3.0 dB 0.67 dB – – 0.013 – – 0.5 dB 0.1 dB – – – – 1° 5° – – – – Note: Mean and sigma calculated from average loss at (f U - f L)/2 + f L. Ordering Information Part No. ETC4-1 ETC4-1TR 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 2 Secondary CT 3 Secondary dot 4 Primary dot 5 Primary Packaging Tubes Tape & Reel S 0180 G 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 ETC4-1 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 -40°C to +85°C Typical Performance INSERTION LOSS vs FREQUENCY 360.0C 360.0A C1 avgpb2 avgpb1 PHASE UNBALANCE vs FREQUENCY A1 A1 B1 0.0 0.0 –13.0 –13.0 avgs31 avgs21 –3.0B –3.0A Over Extended Bandwidth (30 kHz - 1.0 GHz) 30.0 kHz 30.0 kHz freq freq 1.0 GHz A 1.0 GHz B INSERTION LOSS (-3 to -13 dB) vs FREQ (30 kHz to 1 GHz) 30.0 kHz 30.0 kHz freq freq 1.0 GHz A 1.0 GHz C PHASE UNBALANCE (0 to 360 deg) vs FREQ (30 kHz to 1 GHz) AMPLITUDE UNBALANCE vs FREQUENCY avgab B 5.0A INPUT IMPEDANCE vs FREQUENCY 30.0 kHz freq 1.0 GHz A AMP UNBALANCE (5 to -5 dB) vs FREQ (30 kHz to 1 GHz) Y–FS= 1.0 –5.0 avgiprl A1 30.0 kHz freq 1.0 GHz B INPUT IMPEDANCE on SMITH CHART; FREQ (30 kHz to 1 GHz) Note: All measurements performed on Hewlett Packard HP8753D (201 sample points, linear scale) in a coplanar waveguide 50 ohm 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