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 Standard Part Number RoHS-6 Compliant Part No. Turns Ratio (±5%) Primary Inductance (mH ±20%) LL (µH) MAX Rise Time (nsec) MAX ET (V-µsec) MIN Isolation (Vrms) MIN PE-65612 PE-65612NL 1:1 2.5 .50 25 20 2000 PE-65812 PE-65812NL 1:1 2.5 .50 25 20 2000 Bandwidth (100 KHz- 55 MHz) TYP Return Loss (100kHz-10MHz) MIN Schematic 3 dB 20 dB THT 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 .120 3,05 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 .004/0,10 .040 / .050 1,02 / 1,27 5 1 4 .050 1,27 TYP .100 2,54 TYP .340 8,64 MAX 8 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 地址:中山市火炬高技术产业开发区 16 栋 Tel:0760‐88280137 Fax:0760‐23304508 www.anwen.com.cn 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 地址:中山市火炬高技术产业开发区 16 栋 Tel:0760‐88280137 Fax:0760‐23304508 www.anwen.com.cn