T1/CEPT/E1/ISDN-PRI TRANSFORMER
P/N: 4S1142 DATA SHEET
A. General Specifications
1. Eight transformers in a surface mount package supports four transmit and four receive channels
2. Cross talk : -65dB or better
3. Models matched to leading quad and dual T1/E1/CEPTISDN-PRI transceivers .
4. Operating temperature range: 0℃ to +70℃
B. Electrical Specifications @25℃
℃
1. Isolation HI-POT:1500 Vrms
2. Turns Ratio(± 2%) : TX=1:2.4, RX=1:1
3. TX/RX OCL.: 1.0 mH Min /1.0 mH Min
4. TX/RX. Cw/w: 35 pF Max/35 pF Max
5. TX/RX L/L: 0.5 µH Max/0.5 µH Max
6. TX. Primary PINS: 1-2, 8-9, 11-12, 18-19
7. RX. Primary PINS : 25-24, 28-27, 35-34, 38-37
C. Schematic & Mechanical:
﹐
Prepared :Luo Ming Li
Drawing no.: ISDN Transformer
Approved: Xu Wenbing
REV.: A0
Date : 2001/06/11
Page : 1/1
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