Document 244-1 ADSL Transformers For Analog Devices chipsets This product is not RoHS-compliant. Contact Coilcraft for current status or possible alternatives. These transformers have been designed to provide optimum performance with various ADSL chip sets from Analog Devices. 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 designed to meet UL 1950 requirements. For free evaluation samples or to discuss custom designs, please contact Coilcraft. SPECIFICATIONS Line side Leakage DCR max (Ohms) Part inductance inductance number Style Chip set (mH) max (µH) Chip side Line side AS7787-A THT AD20MSP910/918 CO/CPE 5.0 ± 10% 16 1.21 (10-8), 1.65 (9-7) 1.42 (1-3, 2-4) AS8456-A SMT AD20MSP910/918 CO/CPE 5.0 ± 10% 16 1.21 (10-8), 1.65 (9-7) 1.42 (1-3, 2-4) AS8923-A THT AD20MSP930 CO 2.03 min 7.5 0.60 (1-3, 2-4) 0.60 (10-8), 0.60 (9-7) AS8908-A SMT AD20MSP930 CO 2.03 min 7.5 0.60 (1-3, 2-4) 0.60 (10-8), 0.60 (9-7) AS8925-A THT AD20MSP930 CPE 2.42 min 7.5 0.55 (1-3, 2-4) 0.58 (10-8), 0.58 (9-7) AS8924-A SMT AD20MSP930 CPE 2.42 min 7.5 0.55 (1-3, 2-4) 0.58 (10-8), 0.58 (9-7) Part number AS7787-A AS8456-A AS8923-A AS8908-A AS8925-A AS8924-A Dielectric strength Turns ratio Capacitance (V) line:chip max (pF) 1875 1 : 1 55 1875 1 : 1 55 2300 1.1 : 1 2300 1.1 : 1 2300 1.2 : 1 2300 1.2 : 1 Longitudinal balance min (dB) 40 (20 kHz – 1.1 MHz) 40 (20 kHz – 1.1 MHz) 40 (20 kHz – 1.1 MHz) 40 (20 kHz – 1.1 MHz) 40 (20 kHz – 1.1 MHz) 40 (20 kHz – 1.1 MHz) THD @ 20 kHz typ (dB) –89 –89 –85 –85 –85 –85 Designed to meet UL 1459, 1950 UL 1459, 1950 UL 1459, 1950 UL 1459, 1950 UL 1459, 1950 UL 1459, 1950 1.All electrical specifications referenced to line side. 2.Operating temperature range -40°C to +85°C. 3.Electrical specifications at 25°C. [email protected] subject to change without notice. US +1-847-639-6400 Please check our website for latest information. UK +44-1236-730595 [email protected] Taiwan +886-2-2264 3646 [email protected] China +86-21-6218 8074 [email protected] Singapore + 65-6484 8412 [email protected] Document 244-1 Revised 10/20/10 © Coilcraft Inc. 2013 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information. Document 244-2 ADSL Transformers for Analog Devices AS7787-A, AS8923-A, AS8925-A AS8456-A, AS8908-A, AS8924-A B Dot above pin1 10 1 C C A 6 5 B D E E 6 6 5 10 1 F 5 F A F H G 10 1 Recommended Board Layout G Recommended Land Pattern A max B max C max D min E F typ G dia H dia 0.5500.550 0.500 0.100 0.4000.100 0.013 0.032 13,9713,97 12,70 2,54 10,162,54 0,33 0,82 A max B max C max E F typ G typ 0.5300.6990.5000.5900.0980.050 × 0.061 13,4617,7512,7014,992,50 1,27 × 1,55 Packaging 50 parts per tray Packaging AS8908-A, AS8924-A: 100 parts per tray AS8456-A: 175 per 13″ reel. Plastic tape: 32 mm wide, 0.5 mm thick, 28 mm pocket spacing, 12.93 mm pocket depth Schematics AS7787-A, AS8456-A Line side Chip side AS8923-A, AS8908-A AS8925-A, AS8924-A Line side Chip side 1 10 10 3 8 8 3 2 9 9 2 4 7 7 4 1 [email protected] subject to change without notice. US +1-847-639-6400 Please check our website for latest information. UK +44-1236-730595 [email protected] Taiwan +886-2-2264 3646 [email protected] China +86-21-6218 8074 [email protected] Singapore + 65-6484 8412 [email protected] Document 244-2 Revised 10/20/10 © Coilcraft Inc. 2013 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information.