REV. Status PRELIMINARY 02/23/00 MP IMINARY PRE PREPARED BY: HDSL transformer designed for use with Brooktree BT8960 chipset N) at 416Kbps rates ~Y A. Electrical Specifications (@ 25C) ra ND 1. Primary (Line side) Impedance; 1350 =| O 2. Secondary (IC side) Impedance; 320 2|~v 3. Longitudinal Balance; 55dB TYP @ 104KHz, OdBm = | 4, Return Loss; 16.5dB MIN @ 40KHz to 320KHz tl 5. Total Harmonic Distortion; 70dB TYP @ 104KHz, 6.0Vpp g 6. Primary Open Circuit Inductance; 3.5mH +10% @ 10KHz, 0.1Vrms - Measured (9-6) with 8 and 7 shorted - 7. Leakage Inductance; 12uH MAX @ 100KHz, 0.1Vrms White dot 10 Measured (9-6) with 8 & 7, and 4 & 2 shorted indicates 8. DC Current; 7OmA pin 1 6 9. DC Resistance; (2-4) = 2.29 MAX (6-7) = 2.29 MAX (8-9) = 2.29 MAX 10. Turns Ratio; (76):(98)=1:1.004+2% (24):(96)=1:2.0042% 7 & 8 shorted 11. Dielectric Strength; 1875Vrms 1 second @ Pri to Sec 5 Date Code B. Marking; TTC4033, TAMURA, date code and country of origin C. Safety: Complies with UL1950 D. Schematic PRI SEC Line Side IC Side go, o 2 1350 8 7 3 329 7 e 6 4 E. Mechanical Specifications 12.70[0.500]MAX 3.30[0.130]MIN 20. 30[0.800qre--| = 26.67[1 esol 1.07[0.042]TYP 24.13[0.950]MAX 3.81[0.150]TYP and TEE 6 D. Rund ENGINEER: DWG CONTROL NO.] REV HDSL PA1-12365 _ M. Pitchai scarre\aitzses1.owe [PRE TRANSFORMER TTC4033 QUALITY CONTROL: CONTENTS OF THIS DRAWING ARE TAMURA CORPORATION OF AMERICA MODEL SPECIFICATION D. Kelley PRIOR NOTICE $5502 (OO) CGO 1Z7O PAX BOSE ICOKED | DIM: mm(In] SCL: 2/1 [sk 10F 1 APPROVED: PROPRIETARY NOTICE: THIS DRAWING PRINT OR DOCUMENT AND SUBJECT MATTER DISCLOSED HEREIN ARE PROPRIETARY ITEMS TO WHICH TAMURA RETAINS THE EXCLUSIVE RIGHT OF DISSEMINATION, REPRODUCTION, MANUFACTURE AND SALE. THIS DRAWING, PRINT OR DOCUMENT IS SUBMITTED IN J. Coleman _|CONFIDENCE FOR CONSIDERATION BY THE RECIPIENT ALONE UNLESS PERMISSION FOR FURTHER DISCLOSURE IS EXPRESSLY GRANTED IN WRITING,