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| T1/E1 Octal 75/120 Ohm Matching Transformer Module Features * module contains eight transformers for Quad T1/E1 Ports * SMD design provides consistent and reliable coplanarity - fully pick and place compatable * controlled parameters ensure full compliance with ITU-T G.703 when matched with recommended IC * manufactured in an ISO-9001:2000, TS-16949:2002 and ISO-14001:2004 certified Talema facility * 1500Vrms minimum isolation voltage * extended operating temperature: -40 to +85C * fully RoHS compliant and meets lead free reflow level J-STD-020C Electrical Specifications @ 25C Turns Ratio: Bold = IC side windings Eight 75/120 Ohm Matching Transformer Module for Quad T1/E1 Ports Extended Operating Temperature Range: -40 to +85C Part Number Transformer Turns Ratio (Pri: Sec +/-2% ) Chip : Line 1 : 1.9/2.4 Line : Chip 1 : 1.9 Line : Chip 1 : 2.4 1.0 0.8 50 0.9 1.4 OCL LL CWW DCR (mOhms) Pri S ec Pins Primary : Secondary (1:3) : (48-47)/(48-46), (7-9) : (42-41)/(42-40) (13-15) : (36-35)/(36-34), (19-21) : (30-29)/(30-28) (45-43) : (4-6), (39-37) : (10-12) (33-31) : (16-18), (27-25) : (22-24) (45-44) : (4-6), (39-38) : (10-12) (33-32) : (16-18), (27-26) : (22-24) (mH Min.) (H Max) (pF Max) TX - 120/75 Ohm 20362 RX - 120 Ohm RX - 75 Ohm Quad Module Package Schematic Suggested Pad Layout 0.831 0.752 (21.10) (19.10) Chip Tx 1 2 3 4 Rx 6 7 8 9 10 Rx 12 13 14 15 16 Rx 18 19 20 21 22 Rx 24 Line 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 TALEMA IN WK/YR Part Number 23 x 0.050 (23 x 1,27) 0.030 (0,77) 0.076 (1.93) 0.020 (0.50) 46 x 0.05 (1.27) 1.254 (31.85) 0.870 0.650 (22.10) (16.50) 0.110 (2.80) Tx 0.305 (7.75) 0.258 (6.55) 1.150 (29.21) Tx Surface coplanarity will be <0.004 (0.10) Dimensions: Inches (Millimeters) Tolerance: 0.010 (0.25) unless specified otherwise Weight: ~ 8 grams Tx Germany: Int.+4989-841 00-0 * Ireland: Int.+35 374-954 8666 * Czech Rep: Int.+420 377 - 338 351 * India: Int.+91 427-244 1325 http://www.talema-nuvotem.com (10-06) Communications\E1-T1\20362 |
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