ISDN S-Bus TEW5660 Input/Output Transformer TEW5660 is a surface mount transformer, designed to comply with the requirements of an input/output transformer in the ISDN S-Bus Interface. TEW5660 AMD Mitel TEW5660-1 Intel TEW5660-2 Motorola MC145474 MC145475 TEW5660 complies with the requirements of CCITT I.430. It has been designed and approved for the following devices: 79C30A MT8930A,- B, - C MT8931B, - C National TP3420 Siemens PEB2080 PEB2081 PEB2085 PEB2086 Cologne HFC-SP 29C53 MECHANICAL Top view Dot at pin 1 12.2 max. 1 5 3 6 2 7 4 8 Line 2.54 (6 places) 10.7 Device 0.6 9.1 Recommended foot print 1.27 5.5 1.9 2.54 7.62 12.7 All dimensions are in mm ISSUE: F 98/06/30 5660.chp ELECTRICAL SPECIFICATION TEW5660 TEW5660-1 TEW5660-2 DCR (Ohms) (1 - 4) (5 - 8) 6.4 16.3 6.4 14.6 6.4 6.6 Inductance (mH) (1 - 4) > 22 > 22 >22 Leakage Ind. (µH) (1 - 4) < 12 < 12 < 12 (1 - 4) : (5 - 8) 1:2 1 : 1.8 1:1 10 - 300 KHz > 65 > 65 >65 Turns Ratio Longitudinal Bal. * (dB) Input/Output Impedance Conforms to the impedance mask in I.430 Pulse Shape Conforms to the pulse mask in I.430 Dielectric Strength (Vrms) 1500 1500 1500 * Does not meet the I.430 L.C.L. requirements with the Mitel devices. Filtran Limited 229 Colonnade Road, Nepean, Ontario, Canada. K2E 7K3, Tel : (613) 226-1626 Fax : (613) 226-7124 3-14