LINE INTERFACE TRANSFORMER 2 : 1 + 2% Turns Ratio (1-5, shorted 2, 4) : (10 - 6) Parameter Min. Typ. Max. Units Inductance 1-5 (2,4 shorted) 1.8 2 2.2 mH Hi-Pot Pin (1,5 to 10,6) 3000 Return Loss at 40 - 300kHz Return Loss at <40kHz Return Loss at >300kHz VRMS 16 (mid-band) -20(low-band) -20(high-band) Longitudinal Balance at 0.5 - 300kHz Longitudinal Balance >300kHz 53(low-band) -20(high-band) Insertion Loss at 40kHz Reinforced Insulation Per EN 41003/EN 60950 dB dB dB Designed for use with Brooktree RS8973 dB dB 0.5 dB Frequency Response at 36 - 580kHz +0.1 dB Total Harmonic Distortion 1 at 36 kHz -70 dB DC Current 60 mA Surface mount version of this part available. Part# T-1273G -40o C to 85o C Operating Temperature Range Schematic Diagram 1. Test condition: 14 dBm on line side (135 ohm load) with Dc current present ( if applicable). 1 4 PRI (Line Side) 2 10 SEC (Cicuit Side) 6 5 .560 (14.22) MAX. .550 (13.97) MAX. PIN POSITION GRID 0.100 (2.54) HOLES FOR BOBBIN PINS .495 (12.57) MAX. .210 (5.33) TYP. .100 (2.54) TYP. 10 9 8 7 .400 (10.16) TYP. Pin Diameter is 0.025 (0.64) 6 Physical Dimensions inches (mm) Bottom View 1 2 3 4 5 Rhombus P/N: Cust. P/N: Date: 9/10/99 Rhombus Industries Inc. Transformers & Magnetic Products www.rhombus-ind.com T-1273 Name: Sheet: 1 of 1 15801 Chemical Lane, Huntington Beach, CA 92649-1595 Phone: (714) 898-0960 FAX: (714) 896-0971