ADSL Line Transformer Turns Ratio (Line to Chip) Parameter Inductance Min. Typ. Max. Units 432 480 528 µH 10 µH 1 Leakage Inductance Schematic Diagram 1 : 1 + 2% 2 Longitudinal Balance @30 kHz - 1.1MHz -40 dB THD @10 kHz -72 dB Insertion Loss @ 100kHz and 1.1 MHz 1 dB DCR 1-4 with (2-3) Shorted 1.0 Ω DCR 7-10 with (8-9) Shorted 1.0 Ω Hi-Pot Primary to Secondary 1500 VRMS Frequency Response @ 100kHz and 1.1 MHz @ 30kHz and 100kHz 0.5 1.5 1. Tested at 10 kHz - .1V. Pins 1-4 with (2-3) Shorted 2. Tested at 300 kHz - .1V. Pins 1-4 with (2-3) Connected, and 7-10, 8-9, Shorted. .522 (13.26) MAX. dB dB 1 10 3 Line 2 8 4 7 Chip 9 UL 1950 Double Insulation Designed for use with Alcatel MTK-20140 Materials used in construction of this component meet or exceed UL Class B and can be operated up to 130oC .532 (13.51) MAX. .516 (13.1) MAX. .715 (18.15) 6 .100 (2.54) .028 (0.70) .025 (0.64) 5 7 .516 (13.1) Suggested Pad Layout 8 .675 (17.15) .663 (16.85) 9 10 Dimensions in Inches (mm) 4 3 2 .100 (2.54) TYP. .100 (2.54) TYP. .050 (1.27) TYP. 1 RHOMBUS P/N: T-1348G CUST P/N: DATE: 01/20/00 Rhombus Industries Inc. Transformers & Magnetic Products NAME: SHEET: 15801 Chemical Lane, Huntington Beach, CA 92649 Phone: (714) 898-0960 www.rhombus-ind.com FAX: (714) 896-0971