Parameter ADSL Transformer Min. Typ. Max. Units Turns Ratio (1-3) : (10-7) with 8 & 9 shorted 1 : 2.85 1 : 2.90 Turns Ratio (2-4) : (1-3) 2.85 : 1 2.90 : 1 Secondary Inductance Pins 1-3, All others windings open 49.5 55 µH 60.5 Leakage Inductance(1) 0.5 µH Leakage Inductance(2) 5.0 µH Schematic Diagram 1 10 3 8 2 9 SEC 4 PRI Resistance pins (1-3) 0.17 0.19 0.20 ohms Resistance pins (10-8) 0.35 0.39 0.42 ohms Resistance pins (9-7) 0.35 0.39 0.42 ohms Resistance pins (2-4) 0.63 0.70 0.77 ohms Isolation (Hi-Pot) 1500 VRMS Insertion Loss at 100k, 12.6 Ω load 7 Longitudinal Balance 35 KHz to 650 KHz 0.5 dB 60 dB THD, Total Harmonic Distortion 15 Vp-p, 12.6 ohm load, 100 ohm input @ 100 KHz at (7-10) with 8,9 shorted -80 dB 1. Tested at 100 KHz & 10mAAC (1-3) shorted 10-8, 7-9 6 10 2. Tested at 100 KHz & 10mAAC (2-4) shorted 10-8, 7-9 Dimensions in Inches ( mm ) 5 1 .876 (22.25) 1 .620 (15.75) MAX. .620 (15.75) MAX. 10 2 Suggested Pad Layout 3 .330 (8.38) MAX. 4 .016 (0.4) 5 .709 (18.0) .028 (0.7) .098 (2.5) 9 8 7 .088 (2.24) TYP. .098 (2.5) TYP. .045 (1.14) TYP. 6 .850 (21.6) RHOMBUS P/N: T-1184G LEAD COPLANARITY: .005 ( .127 ) Rhombus Industries Inc. Transformers & Magnetic Products CUST P/N: DATE: 10/13/98 FSCM No. 16714 NAME: SHEET: 1 of 1 15801 Chemical Lane, Huntington Beach, CA 92649 Phone: (714) 898-0960 FAX: (714) 896-0971