? coilcraft, inc. 2006 specifications subject to change without notice. please check our website for latest information. vdsl transformer document 595 document 595 revised 01/04/07 1. when ordering, please specify packaging code: d1894-bl d packaging: d =13 machine-ready reel. eia-481 embossed plastic tape (350 parts per full reel). b = less than full reel. in tape, but not machine ready. to have a leader and trailer added ($25 charge), use code letter d instea d. 2. inductance measured at 10 khz, 0.1 vrms, 0 adc with windings connected in series. 3. leakage inductance measured at 100 khz, 0.1 vrms, 0 adc from pins 1 to 4 with all other pins shorted. 4. capacitance measured at 100 khz, 0.1 vrms, 0 adc from chip side to line side. 5. operating temperature range ? 40c to +85c. 6. electrical specifications at 25c. for broadcom bcm96358 and bcm6505 chip side leakage longitudinal part turns ratio inductance 2 inductance 3 dcr max (ohms) balance thd number 1 line : chip 7% (h) max (h) chip side line side min (db) max (db) d1894-bl_ 2 : 1 420.0 1.3 0. 515 (1-3) 0.290 (7-6) 55.0 (10.0 mhz) ? 75 0.515 (2-4) 0.239 (8-5) 6 5 1 line side chip side 2 3 4 7 8 recommended land pattern 1 8 4 5 0.402 10,2 0.374 9,50 0.394 10,0 0.425 10,8 0.089 2,25 0.047 1,20 0.098 2,50 0.045 1,15 0.028 0,7 0.228 5,80 max dot indicates pin 1 max max 0.004 /0,10 terminations: tin-silver over tin over nickel over phos bronze tape and reel: 350/13 reel 24 mm tape width for packaging data see tape and reel specifications section. this line driver transformer has been designed for the broadcom bcm96358m reference design. it is used with their bcm6505 on the vdsl side of the router. it features very low leakage inductance and 2500 vrms primary-secondary isolation. primary inductance is stable from -40c to +85c and the longitudinal bal- ance is optimized for the best overall performance at the vdsl transmission speeds. coilcraft can also custom design a transformer for your specific application. to request free evaluation samples, please contact coilcraft or visit www.coilcraft.com .
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