T-997G

PARAMETER Turns Ratio Line Impedance Inductance (Line Side) 1 : 1 +1% 135 200 Min UNITS T-997G DDS Aplications Pulse Transformers Designed to meet the requirements of Bellcore TR-NWT-000499, Synchronous Digital Data Interface-64 Kbps and Subrates Recomended for use with level one LXT400 & LXT456 Custom versions of this transformer are available. A Surface Mount version of this transformer is available Compatible with Level One transceiver ICs SCHEMATIC DIAGRAM: 1 10 3 5 8 6 Ω mH µH Ω Ω dB Leakage Inductance 10 kHz - 1VRMS 60 Max. Primary DC Resistance Secondary DC Resistance Frequency Response 100 Hz - 112 kHz Insertion Loss @ 10kHz Isolation (HI-POT) Primary DC Return Loss @ 100 Hz - 100 kHz 18.2 Max. 18.2 Max. 1.0 Typ. 1.25 Typ. 1875 0 15 Typ. dB VRMS mA dB dB dB pF Longitudinal Balance 200 - 1000 Hz 40 Typ. 15 kHz 35 Typ. Interwinding Capacitance 10 kHz - 1 VRMS 65 Max. Physical Dimensions in inches (mm) Primary Secondary .522 (13.26) MAX. .532 (13.51) MAX. 1 2 3 .715 (18.15) 10 9 8 7 6 .516 (13.1) MAX. .100 (2.54) TYP. Suggested Pad Layout .100 (2.54) .028 (0.70) .025 (0.64) .516 (13.1) .675 (17.15) .663 (16.85) 4 5 .050 (1.27) TYP. .100 (2.54) TYP. 4/15/98 Rhombus Industries Inc. Transformers & Magnetic Products 15801 Chemical Lane, Huntington Beach, CA 92649 Phone: (714) 898-0960 FAX: (714) 896-0971 www.rhombus-ind.com