20 PIN DIP ETHERNET 10/100 BASE DUAL PORT TRANSFORMER
PN/:20PT1021A1 DATA SHEET
A.GENERAL SPECIFICATIONS:
1.IEEE 802.3 ETHERNET COMPATIABLE, 100 BASE-TX
2.20 PIN DIP PACKAGE COMPATIBLE WITH POPULAR IC CHIPS.
3.DESIGN FOR MULTIPORT REPEATER AND ETHERNET SWITCHING HUB APPLICATION
4.CUSTOMER DESIGNS AVAILABLE FOR SPECIFIC APPLICATION
B.ELECTRICAL SPECIFICATIONS@25°C
1
.ISOLATION HI-POT: 1500 Vrms (PRI. /SEC.)
2.TURN RATIO (+/- 5%): TX=1CT: 1CT, RX=1:1
3.RISE TIME: 2.5 ns TYP
4.CW/W: 28 pF MAX
5.LEAKAGE INDUCTANCE: TX /RX 0.5uH Max
6.CMRR (0.1-100 MHz): -40dB
7.CROSSTALKS (0.1 TO 100MHz): -38dB Min
8.PRIMARY DC RESISTANCE, DCR (OHM Max): TX & RX :0.9
9.PRIMARY OCL (uH Min): TX & RX: 350 AT 100KHz/0.1Vrms, 8mA DC.
10.INSERTION LOSS (dB Max): -1.15dB AT 1MHz-100MHz
11.RETURN LOSS (dB Min): 1MHz-30MHz -18dB
30MHz-60MHz -14dB
60MHz-80MHz -12dB
C.SCHEMATIC & DIMENSIONS & MARKING (UNIT mm):
Date: April 15-2000 Pre by:WuQingli Rev.: X.0
BOTHHAND [ BOTHHAND USA, LP. ]
