DIGITAL AUDIO Data Transmission Transformer Turns Ratio ( + 5% ) 1CT :1CT PARAMETER MIN. TYP. MAX. UNITS 3.5 5 6.5 mHy Primary DC Resistance 1.0 ohms Secondary DC Resistance 1.0 ohms Open Circuit Inductance Isolation (HI-POT) 2.0 Temperature Characteristics: -40o C 3.5 mH min. (40% drop in inductance) +85o C 5.75 mH min. (15% growth in inductance) Typical part: 5 mH @ +25o C 5.75 mH @ +85o C 3.5 mH @ -40o C KVRMS Leakage Inductance 1.2 µH Rise Time 25 nS ET Product Flammability: Materials used in the production of these units meet requirements of UL94-VO and IEC 695-2-2 needle flame test. 25 VµS Common Mode Rejection (1) 70 dB Return Loss 15 dB For Use with Echelon Neuron integrated circuits 3120 and 3150 Chips produced by Motorola and Toshiba. For Surface Mount Version Order Part Number T-10352 TEST CONDITIONS: Oscillation Voltage = 100mV Oscillation Frequency = 100.0 KHz Inductance measured on Primary winding. Pins 1-5 1.. @ 1MHZ in 100Ω system. These Transformers provide excellent DC isolation and common mode noise rejection Parts shipped in anti-static tubes. 50 pieces per tube Designed to improve and maintain the balance of the transmitter and receiver circuitry. All dimensions in inches (mm): Designed for low cost. High voltage isolation Available in Surface Mount Versions .350 (8.89) MAX. Custom Designs and Variations of these transformers available .500 (12.70) MAX. .250 (6.35) MAX. .080 (2.03) SCHEMATIC DIAGRAM: Top view 6 5 Pri. Sec. 3 4 1 2 .120 (3.04) MIN. .100 (2.54) TYP. .020 DIA. (0.51) TYP. Transformers & Magnetic Products .400 (10.16) RHOMBUS P/N: T-10252 CUST P/N: DATE: 11/12/99 Rhombus Industries Inc. .340 (8.64) NAME: SHEET: 1 OF 1 15801 Chemical Lane, Huntington Beach, CA 92649 Phone: (714) 898-0960 FAX: (714) 896-0971 www.rhombus-ind.com