TX9027T

T1/CEPT/ISDN-PRI TRANSFORMERS Quad Port SMT Transformer Modules with IC Side Protection Eight transformers in a low profile surface mount package Includes IC Side Protection Circuit on each channel to suppress low voltage transients Compatible with PMC-Sierra’s PM 4329 HDLIU Low DCR Patented “Interlock Base” construction for high reliability Minimum Isolation voltage: 1500 Vrms Electrical Specifications @ 25°C Part Number Turns Ratio (Pri:Sec ±2%) OCL Line Side (mH MIN) TX RX EXTENDED TEMPERATURE RANGE MODEL – OPERATING TEMPERATURE -40°C TO +85°C TX9027 1:2 1:2 1.2 CW/W (pF MAX) LL (µH MAX) Package/ Schematic 30 .5 QTERA NOTE: The crosstalk attenuation is typically 50 dB or better. Schematic Mechanical QTERA 40X .018 0,46 .090 40X 2,29 TX9027 DATE CODE COUNTRY OF ORIGIN 3 .485 12,32 .285 MAX 7,24 0° – 8° .010 0,25 1:2 .045 40X 1,14 1:2 V G 9 1:2 10 1:2 V G 14 1:2 15 Dimensions: Inches mm Unless otherwise specified, all tolerances are ± .010 0,25 1:2 17 18 19 20 35 34 33 32 30 29 28 27 26 16 Weight ...............5.0 grams Tape & Reel..........250/reel Tube ......................15/tube 37 31 11 12 13 38 36 6 SUGGESTED PAD LAYOUT .950 24,13 G 5 7 8 40 39 V 4 .050 40X .030 0,76 1,27 .050 19X = .950 1,27 24,13 .050 19X 1,27 .004/0,10 40 Surfaces 2 .480 12,19 CHIP SIDE .640 MAX 16,26 1:2 1 LINE SIDE 1.125 MAX 28,58 25 24 V G 1:2 23 22 21 US 858 674 8100 • UK 44 1483 401 700 • France 33 3 84 35 04 04 • Singapore 65 6287 8998 • Taiwan 886 2 2698 0228 • Hong Kong 852 2788 6588 • http://www.pulseeng.com T691.A (8/04) T1/CEPT/ISDN-PRI TRANSFORMER Quad Port SMT Transformer Module with IC Side Protection Application Notes 1. Flammability — Materials used in the products are recognized as UL94-VO approved. Products meet the requirements of IEC 695-2-2 (Needle Flame Test). 2. Balance Characteristics — The transformers meet the requirements for longitudinal balance of FCC part 68. 3. Common Mode Rejection Ratio — the CMRR for all transformers is better than 50 dB at 1 MHz. A typical test circuit is shown below. 5. Frequency 50:100 BALUN 4. XFMR 100:50 BALUN 50-100 kHz 100 kHz-2 MHz 2-3 MHz Return Loss XMIT 9 dB 15 dB 11 dB REC 12 dB 18 dB 14 dB 6. Surge Voltage Capability – All transformers and chokes meet surge voltage tests according to the most stringent regulatory documents when system designs include the proper voltage and current suppression devices. 7. Isolation Voltage — 100% of transformers are tested during production to the specified isolation voltage level. 8. General Information — The TX9027 is specifically designed for use in 1.544 Mbps (T1), 2.048 Mbps (CEPT) and ISDN Primary rate (PRI) interface applications. Use of the proper transformer allows the interface circuit to comply with ITU-T G.703 and other standards regarding pulse waveform, return loss, and balance. HP-8751A P1 P2 Return Loss — ITU-T G.703 and European national regulatory documents specify minimum return loss levels. The transformers will allow these limits to be complied within the situations where they are applicable. Crosstalk Attenuation — In the dual packages, which contain transmit and receive transformers side by side, sufficient crosstalk attenuation is achieved by the inherent characteristics of the toroid cores as well as by their proper positioning. The crosstalk attenuation is typically 50 dB or better from 100 kHz to 10 MHz. This result was established with the test circuit shown below. HP-8751A 50:100 BALUN P1 P2 100 100 XFMR 100:50 BALUN For More Information : UNITED STATES (Worldwide) UNITED KINGDOM (Northern Europe) FRANCE (Southern Europe) SINGAPORE (Southern Asia) TAIWAN, R.O.C. (Northern Asia) HONG KONG (China/Hong Kong) 12220 World Trade Drive San Diego, CA 92128 U.S.A. http://www.pulseeng.com TEL: 858 674 8100 FAX: 858 674 8262 5 Huxley Road Surrey Research Park Guildford, Surrey GU2 5RE United Kingdom TEL: 44 1483 401700 FAX: 44 1483 401701 Zone Industrielle F-39270 Orgelet France TEL: 33 3 84 35 04 04 FAX: 33 3 84 25 46 41 150 Kampong Ampat #07-01/02 KA Centre Singapore 368324 TEL: 65 6287 8998 FAX: 65 6280 0080 3F-4, No. 81, Sec. 1 HsinTai Wu Road Hsi-Chih, Taipei Hsien Taiwan, R.O.C. Tel: 886 2 2698 0228 FAX: 886 2 2698 0948 9/F, Phase 2, Tai Sang Shatin Warehouse Centre 6 Wong Chuk Yeung Street Fotan, Shatin, Hong Kong TEL: 852 2788 6588 FAX: 852 2776 1055 DISTRIBUTOR Performance warranty of products offered on this data sheet is limited to the parameters specified. Data is subject to change without notice. Other brand and product names mentioned herein may be products and/or registered trademarks of their respective owners. ©2004, Pulse Engineering, Inc. All Rights Reserved. T691.A (8/04)