EPT7020

Euro-Optimized Token Ring 16 Pin SMD Line Transceiver Module Electrical Specifications @ 25°C PCA Part Number Characteristic Impedance EPT7020 Supports both STP and UTP Transmission Return Loss 1-5 MHz 10-16 MHz -20 dB Min. -15 dB Min. 24 MHz -8 dB Min. 24 MHz Insertion Loss 12 KHz 16 MHz 32 MHz -3.0 dBMax. -0.8 dB Max. -1.7 dB Max. -7.0 dB Min. Common to Common 100 KHz 20 MHz 200 MHz Mode Rejection -65 dB Min. -30 dB Min. -20 dB Min. Common to Differential 100 KHz Rejection -70 dB Min. 10 MHz 100 MHz -55 dB Min. -25 dB Min. Block Diagram for Transmit Interface Unit 4 Phantom A 1 DroutA 3 DroutB Signal Isolation Matching Transformer DC Bias 2 Vcc Phantom Drive Signal Insertion 5 Phantom B 7 Xmit A Filter 6 Gnd EMI Filtering 8 Xmit B Block Diagram for Receiver Interface Unit 12 PhRetA Gnd 14 RcvinA 16 RcvinB Signal Isolation Matching Transformer Phantom Drive Signal Return 13 PhRetB Gnd Filter 11 Gnd EMI Filtering 9 Rcv A 10 Rcv B SMD Package White Dot Pin #1 .100 .055 PCA .480 .510 EPT7020G Date Code .380 Max. Pad Layout .480 .510 .030 1.00 Max. .375 Max. .018 x .010 .020 ± .005 .100 .420 .035 ± .005 QAF-CSO7 8/10/94 DST7020 12/6/94 Unless Otherwise Noted Dimensions in Inches Tolerances: Fractional = ± 1/32 .XX = ± .030 .XXX = ± .010 ELECTRONICS INC. 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 TEL: (818) 892-0761 FAX: (818) 894-5791