AS8426-A COILCRAFT | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 2
Technical content
© Coilcraft, Inc. 2007 Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2007 Document 222-1 Document 222-1 Revised 1/11/01 These transformers have been designed to provide optimum performance with the ADSL chip sets from a variety of leading manufacturers. They feature a compact size, minimum DC resistance and very low leakage inductance. Primary inductance is stable from -40°C to +85°C and the longitudinal balance is optimized for the best overall performance at the ADSL transmission speed. Most parts have been de- signed to meet UL 1950 requirements. For free evaluation samples or to discuss custom de- signs, please contact Coilcraft. 1. All electrical specifications referenced to line side. 2. Operating temperature range -40°C to +85°C. 3. Electrical specifications at 25°C. Line side Leakage Part i nductance inductance DCR max (Ohms) number Style C hip set (mH) max (µH) Chip side Line side AS8425-A Leaded Motorola MC145660/MS143462SK 3.96 ± 5% 18 2.42 (10-6), 1.87 (9-7) 2.53 (1-4, 2-5) AS8397-B SMT Motorola MC145660/MS143462SK 3.96 ± 5% 18 2.42 (10-6), 1.87 (9-7) 2.53 (1-4, 2-5) AS8578-A Leaded TI TNETD4000R/3000R 1.5 ± 5% 18 0.800 (1-4) 3.75 (10-7) AS8579-A SMT TI TNETD4000R/3000R 1.5 ± 5% 18 0.800 (1-4) 3.75 (10-7) Dielectric Longitudinal THD Part strength Turns ratio Capacitance balance @ 20 kHz Designed number (V) line:chip max (pF) min (dB) typ (dB) to meet AS8426-A 3000 2:1 N/A 45 (30 kHz - 1.1 MHz) -77 UL 1950 AS8446-A 2300 2:1 N/A 45 (30 kHz - 1.1 MHz) -77 UL 1950 AS8696-B 3000 1:1 N/A 45 (30 kHz - 1.1 MHz) -84 UL 1950 AS8697-B 2300 1:1 N/A 45 (30 kHz - 1.1 MHz) -84 UL 1950 AS8425-A 1875 1.2:1 N/A 40 (20 kHz - 1.1 MHz) -92 UL 1950 AS8397-B 1875 1.2:1 N/A 40 (20 kHz - 1.1 MHz) -92 UL 1950 AS8578-A 1875 1.42:1 35.0 40 (20 kHz - 1.1 MHz) -85 UL 1950 AS8579-A 1875 1.42:1 35.0 40 (20 kHz - 1.1 MHz) -85 UL 1950 ADSL Transformers For Alcatel, Motorola and TI chip sets This product is not RoHS-compliant. Contact Coilcraft for current status or possible alternatives.
© Coilcraft, Inc. 2007 Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2007 Document 222-2 Revised 11/10 /04 Document 222-2 ADSL Transformers for Alcatel, Motorola, TI Schematics Leaded Transformers A max B max C max E F typ G typ 13,46 17,75 12,70 14,99 2,50 1,27 × 1,55 Surface Mount Transformers AS8426-A, AS8446-A AS8696-B, AS8697-B AS8425-A, AS8397-B AS8578-A, AS8579-A Line side Chip side Line side Chip side 77 44 1010 11 Line side Line side Chip side Chip side Recommended Land Pattern C B A B 10 1 A E F G D E FF H C G Dot above pin1 Recommended Board Layout A max B max C max D min E F typ G dia H dia 13,97 13,97 12,70 2,54 10,16 2,54 0,33 0,82