Filter Module for Token Ring (Twisted Pair) 18 Pin SIL PCA Part Number(s) EPA2127A Electrical Specifications @ 25°C Parameter Frequency Specification Isolation (Input to Output) Cut-off Frequency Return Loss 16 MHz I/O Impedance XMIT RCV Unit 2000 (for 1 Minute) Vrms 27 MHz Typ. -15 dB Min. Ω 100 Insertion Loss 1-15 MHz 1.0 Common Mode Rejection 300 KHz-300 MHz ----- dB Max. dB Min. 20 Notes : Schematic 1:1 16 6 11 TX TX LPF 10 15 7 5 4 1:1 17 1 13 RX RX LPF 12 18 2 Response (Typ.) Package .525 Max. .125/.150 .300 .200 Typ. 2 Plcs .020 10 Attenuation (dB) PCA EPA2127A Date Code Frequency VS. Attenuation .250 Max. 1.900 Max. .035 Typ. .100 Typ. 10 Plcs 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 Receive Transmit .30 300 Freq. (MHz) White Dot Pin 1 DSA2127A Rev. A 10/3/95 Unless Otherwise Noted Dimensions in Inches Tolerances: Fractional = ± 1/32 .XX = ± .030 .XXX = ± .010 QAF-CSO7 8/10/94 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 ELECTRONICS INC. TEL: (818) 892-0761 FAX: (818) 894-5791 WEB: http://www.pcainc. com