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| ISDN U-Interface Transformers For both 2B1Q & 4B3T ISDN U-Interface Applications Excellent Longitudinal Balance Designed for use with leading Transceiver Chips Electrical Specifications at 25OC Part Number Turns Ratio (+3%) OCL1 +6% Pri ( mH ) Line Side Pins 1 Meets key parameters of ANSI T1.601-1992 Isolation 2000VRMS Minimum Higher Isolation Models Available Schematic "A" Coding Isolation (VRMS) Schem. Style 2 5 6 7 8 DCR max. () 2 DCR max. () DC Bias (mA) T-13200 T-13201 T-13202 T-13203 T-13204 T-13205 T-13216 T-13226 T-13227 T-13229 T-13230 T-13231 1 2 1:1 1:1.5 1:1.8 1:2 1:2.5 1.50:1 1.50:1 1.32:1 1.65:1 1.60:1 1.50:1 2.0:1 22 22 22 22 22 27.0 35.0 7.9 14.5 14.5 14.5 27.0 2-11 2-11 2-11 2-11 2-11 5-7 5-7 5-7 5-7 5-7 5-7 5-7 6.0 6.0 6.0 6.0 6.0 10.0 10.0 2.5 3.0 3.5 3.0 7.0 7.0 11.5 13.5 18.5 28 5.0 5.0 2.0 2.0 3.0 2.0 3.0 60 60 60 60 60 60 60 60 80 60 60 80 2B1Q 2B1Q 2B1Q 2B1Q 2B1Q 2B1Q 2B1Q 4B3T 2B1Q 2B1Q 2B1Q 2B1Q 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 A A A A A B B B B B B B Line Side 1 12 11 Chip Side Schematic "B" 2 5 8 6 11 7 Chip Side Line Side Line Side Device Side NOTE: (For All Parts) OCL Tested @10 kHz / 700 mV, on Line Side pins 1&12 shorted for Schem. "A"; pins 8&6 for Schem. "B." Operating Temp. Range -400C to +850C Primary is Line Side Secondary is Chip Side Surge Voltage Capability: Metallic Voltage: 800 V peak, 10/700 S Longitudinal Voltage: 2400 V peak, 10/560 S Longitudinal Balance (2B1Q Coding) 281 Hz to 40 KHz 55 dB min. > 40 KHz -20 dB/decade Longitudinal Balance (4B3T Coding) 5 KHz 20 dB min. 20 KHz to 150 KHz 40 dB min. 1 MHz 36 dB min. Return Loss 10 and 25 KHz 20 dB min. Manufacturer I.C. Name Part Number AMD AM 20902 AMD AT&T Mietec Mitel Motorola National Siemens Siemens SGS-Thomson SGS-Thomson AM2091 (C) T7262/63 MTC 2071 MT 8910 MC145472 TP 3410 PEB 2090 PEB 2091 (C1) ST5410 STLC5411 Transformer Part # T-13226 T-13229 T-13230 T-13226 T-13227 T-13231 T-13205 T-13226 T-13229 T-13205 T-13216 For Complete Details including PDF Catalogs & Data Sheets on this and other product families visit www.rhombus-ind.com Package Physical Dimensions in inches (mm) RM-8 Package Specifications subject to change without notice. For other values & Custom Designs, contact factory. ISDN-URM - 10/97 Rhombus Industries Inc. 18 15801 Chemical Lane, Huntington Beach, CA 92649-1595 Tel: (714) 898-0960 * Fax: (714) 896-0971 |
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