ISDN “S” Interface Isolation Transformers ELECTRONICS INC. EPA1155-X • Meets CCITT 1.430 Four Wire “S” Interface • Dual Low Profile Packages • Hipot : 2000 Vrms Electrical Parameters @ 25° C PCA Part Number I.C. Manufacturer Part Number Function OCL (mH Min.) EPA1155-6 EPA1155-7 EPA1155-8 EPA1155-11 EPA1155-13 ------AMD 79C30A --- ------Xmit & Rvc --- 22 22 22 22 22 Interwinding Capacitance (pF Max.) 100 100 100 100 100 Leakage Inductance (µH Max.) 5 8 30 5 15 Turns Ratio (± 5%) DCR (Ω Max.) 2.50 2.50 2.50 2.75 2.88 1:1 1:2 1:2 1:1 1:2 Package & Schematic 2.50 4.50 5.00 2.75 5.00 A A A B B • Longitudinal Balance : -60 dB Min. @ 10 KHz - 300 KHz • Schematic A Schematic B 1 14 5 10 1 16 5 12 2 13 6 9 2 15 6 11 3 12 7 8 3 14 7 10 4 13 8 9 Package A 14 1 PCA EPA1155-X D.C. Package B 16 8 .540 (13.72) 1 7 .880 (22.35) 9 .550 (13.97) 8 .910 (23.11) .025/.035 (.635/.889) .017/.022 (.432/584) PCA EPA1155-X D.C. .025/.035 (.635/.889) .350 (8.89) .017/.022 (.432/584) .115/.125 (2.92/3.18) .600 (15.24) .390 (9.91) .115/.125 (2.92/3.18) .700 (17.78) .200 (5.08) Bottom View Bottom View .400 (10.16) .400 (10.16) .100 (2.54) .100 (2.54) Unless Otherwise Specified Dimensions are in Inches /mm ± .010 /.25 PCA ELECTRONICS, INC. 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 Product performance is limited to specified parameters. Data is subject to change without prior notice. CSA1155-XD Rev. 2 7/21/03 TEL: (818) 892-0761 FAX: (818) 894-5791 http://www.pca.com