Token Ring Transformer Module EPT7099S ELECTRONICS INC. • Optimized for Texas Instrument’s TMS38054 • • Supports both UTP and STP Transmission • • Robust Construction allows for severe soldering processes • • Isolation : 1500 Vrms • • Complies with or exceeds IEEE 802.5 Requirements • Electrical Parameters @ 25° C Primary OCL (µH Min.) Leakage Inductance (µH Max.) @ 10 KHz, 0.1 Vrms @ 10 MHz, 0.1 Vrms 590 0.7 Impedance (Ω) Insertion Loss (dB Max.) Common Mode Rejection (dB Min.) Return Loss (dB Min.) DCR (Ω Max.) @ 1-16 MHz @ 1-16 MHz @ 17-24 MHz @ 1-100 MHz @ 200 MHz @ 300 MHz Pri. Sec. CMC -1 -20 -20 -25 -15 -10 .700 .500 .450 150:150/100 Schematic 16 11 1 10 15 13 9 8 14 12 Package Dimensions A N (J) Pin 1 I.D. Dim. PCA EPT7099S Date Code B Q Pad Layout M D E C H A B C D E F G H I (J) K L M N P Q P F K I L (Inches) Min. Max. Nom. .445 .265 .084 --.003 --.380 .016 .008 --0° .025 --------- .465 .285 .096 --.010 --.400 .020 .012 --8° .045 --------- .455 .275 .090 .350 .005 .050 .390 .018 .010 .052 --.035 .030 .050 .096 .426 (Millimeters) Min. Max. Nom. 11.30 6.73 2.13 --.076 --9.65 .406 .203 --0° .635 --------- 11.81 11.56 7.24 6.99 2.44 2.28 --8.89 .254 .127 --1.27 10.16 9.91 .508 .457 .305 .254 --1.32 8° --1.14 .889 --.762 --1.27 --2.44 --10.82 G PCA ELECTRONICS, INC. 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 CST7099S Rev. 1 10/28/98 Product performance is limited to specified parameters. Data is subject to change without prior notice. TEL: (818) 892-0761 FAX: (818) 894-5791 http://www.pca.com