TRANSFORMERS FOR DIGITAL AUDIO DATA TRANSMISSION For Use with Cirrus Logic’s CS8401, CS8402, CS8403 & CS8404 ICs Operating transmission rates: 1 to 7 Mbps Controlled rise time: 25 nsec MAX High isolation voltage: 2 kV MIN Electrical Specifications @ 25°C — Operating Temperature 0°C to 70°C Part Number Turns Ratio Primary Inductance (mH ±20%) LL (µH) MAX Rise Time (nsec) MAX ET (V-µsec) MAX Isolation (Vrms) MIN Bandwidth (100 KHz- 55 MHz) TYP Return Loss (100 kHz-10MHz) MIN Schematic PE-65612 1:1 (±5%) 2.5 .50 25 20 2000 3 dB 20 dB THT PE-65812 1:1 (±5%) 2.5 .50 25 20 2000 3 dB 20 dB SMT Common Mode Rejection dB 80 70 60 50 40 30 20 10 0 0.1 1 3 6 MHZ 10 30 Mechanicals PE-65612 .500 MAX 12,70 2 Schematics 4 PE-65612 DATE CODE 1 3 .350 8,89 .475 MAX 12,06 .600 15,24 MAX 8 5 PE-65812 DATE CODE 1 4 .085 2,16 .100 2,54 2 4 1 3 .200 5,08 .130 3,30 PE-65812 .400 10,16 .250 MAX 6,35 Leads are 24 AWG-solderable .120 3,05 .030 0,76 .400 .475 10,16 12,06 MAX MAX .640 .400 16,26 10,16 .300 7,62 SUGGESTED PAD LAYOUT .010 / .020 0,25 / 0,51 .040 / .050 1,02 / 1,27 5 1 4 .050 1,27 TYP .100 2,54 TYP .340 8,64 MAX 8 .004/0,10 PE-65612 PE-65812 Weight . . . . . . . . . .1.2 grams . . . . . .2.0 grams Tape & Reel . . . . . . . . . . . .NA . . . . . . . .250/reel Tube . . . . . . . . . . . . . .60/tube . . . . . . . .30/tube Dimensions: Inches mm Unless otherwise specified all tolerances are ±.010 0,25 US 858 674 8100 • UK 44 1483 401 700 • France 33 3 84 35 04 04 • Singapore 65 287 8998 • Taiwan 886 2 2698 0228 • Hong Kong 852 2788 6588 • http://www.pulseeng.com T601.C (6/02) TRANSFORMERS FOR DIGITAL AUDIO DATA TRANSMISSION For Use with Cirrus Logic’s CS8401, CS8402, CS8403 & CS8404 ICs Application These transformers have been designed for use at the interface between line driver and receiver and the interconnecting medium in Digital Audio Data Transmission Systems according to AES 3-199X or IEC 958. In such systems, two channels of periodically sampled and uniformly quantized audio signals are transmitted on a single shielded twisted pair. The electrical parameters of the interface are based on those of CCITT V.II or balanced voltage digital circuits which allow signal transmission up to a few hundred meters. The isolation transformers are essential in improving the balance of the transmitter and the receiver circuitry, and reducing common mode noise and EMI. These transformers are recommended for use with the Cirrus Logic CS8401, CS8402, CS8403 and CS8404 “Digital Audio Interface Transmit Device.” The schematic below represents an implementation of transmit and receive circuits using isolation transformers at both ends. Equalization in the receiver may permit to increase the length of the interconnecting cable. Applicable Documents AES 3-1985 (ANSI S4.40-1985), AES 3-199XDraft, IEC 958, CP-340, EBU 3250 Application Circuit Transmitter Receiver Interconnecting Cable Equalization T1 T2 T1, T2: PE-65612 or PE-65812 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 1 & 2 Huxley Road The 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: 65 287 8998 FAX: 65 280 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 19/F, China United Plaza 1008 Tai Nan West Street Cheung Sha Wan, Kowloon Hong Kong, China 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. Printed on recycled paper. ©2002, Pulse Engineering, Inc. T601.C (6/02)