100 Base X Interface Module PCA Part Number(s) EPA2762 Electrical Specifications @ 25°C Parameter Frequency Cut-off Frequency Specification XMIT RCV MHz Min. 105 @ 3 dB (Note 1) Insertion Loss 80 MHz -1.5 Isolation Unit -1.5 1500 dB Max. Vrms Return Loss 60 MHz -12.0 -12.0 dB Min. Commom Mode Rejection 50 MHz -45 -45 dB Min. 100 MHz -42 -40 dB Min. 200 MHz -26 -26 dB Min. 400 MHz -17 -17 dB Min. 350 350 Crosstalk 100 MHz OCL (DC Bias) 100 KHz Impedance -40 8 mA (See Note 2) dB Min. µH Min. Ω 100 Notes : 1. With reference to 60 MHz. 2. This parameter is by design; not 100 % tested in production. Functional Block Diagram Chip Signal Common Mode Choke 1 Common Mode Choke 2 Isolation Transformer Schematic Cable Package RD+ 16 9 RX.375 11 RT+ Marking: PCA EPA2762 Date Code FILTER 12 RTRD- 15 .990 10 RX.010 ± .005 .375 CT 14 .050 CT 3 TD- 2 7 TX- .020 ± .002 .500 .100 .055 5 TTFILTER .520 6 TT+ TD+ 1 8 TX+ .030 .100 DSA2762 Rev. B 11/1/95 Unless Otherwise Noted Dimensions in Inches Tolerances: Fractional = ± 1/32 .XX = ± .030 .XXX = ± .010 QAF-CS10 8/94 ELECTRONICS INC. 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 TEL: (818) 892-0761 FAX: (818) 894-5791