AES/EBU (IEC 958) Interface: Professional Vs. Consumer

Professional Format Interface
FormatSerial transmission of two channel of sampled and linearly encoded data
Transmitter characteristicsBalanced output
Connector:XLR with male pins and female shell
Pin Allocations:Pin 1: Cable shield, signal earth, or ground
Pin 2: Signal (polarity unimportant)
Pin 3: Signal (polarity unimportant)
Source impedance:110Ω ±20%
Balance:< - 30 dB (up to 6 MHz)
Output signal amplitude:2 to 7 Vp-p across 110Ω load (balanced)
Rise and fall time:5 to 30 ns
Jitter:20 ns
Receiver characteristicsBalanced output
Connector:XLR with female pins and male shell
Pin Allocations:Pin 1: Cable shield, signal earth, or ground
Pin 2: Signal (polarity unimportant)
Pin 3: Signal (polarity unimportant)
Input impedance:110Ω ±20%
Common mode regection ratio:Up to 7 Vp-p to 20kHz
Maximum accepted signal level:7 Vp-p
Cable specifications:Shielded twisted pair, 100 to 250 m maximum
Cable equalization:Optional

Consumer Format Interface
FormatSerial transmission of two channel of sampled and linearly encoded data
Transmitter characteristicsUnbalanced output
Connector:RCA phono jack
Source impedance:75Ω
Output signal amplitude:500mVp-p across 75Ω load (unbalanced)
Receiver characteristicsUnbalanced output
Connector:RCA phono jack
Source impedance:75Ω


Extracted from: Table 6.1 Pg. 269, Digital Television Fundamentals - Design and Installation of Video and Audio Systems, Michael Robin and Michael Poulin, 1997, McGraw-Hill
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Created by: Kuan, Yeh Cheang. Copyright © 2002 YC Kuan. All rights reserved.