Introduction - pro bel 4429 Technical Manual

Introduction

1
The 4429 extracts up to two dual channel digital audio signals embedded in a serial
digital component video signal. The basic card provides AES3 digital audio outputs
in both balanced and unbalanced formats. Up to two optional DAC sub-boards are
available, each providing electronically balanced programme quality analogue
outputs.
The 4429 automatically adjusts to handle audio embedded either continuously or to
SMPTE 272M. Equalised and regenerated copies of the digital video input are also
provided.
The module is designed to fit in the 1050 3U and 1051 1U Pro-Bel ICON modular
product rackframes.
Characteristics of the 4429 module are:
•
extracts two dual channel audio signals from an SDI input
•
balanced and unbalanced AES3 outputs
•
high quality analogue outputs with one or two stereo DACs per module
•
handles synchronous or asynchronous embedded audio
•
compatible with COSMOS, Pro-Bel status monitoring
SDI with
embedded audio
DC power and
status data
2
REGEN-
ERATOR
DIGITAL
AUDIO
EXTRACTOR
POWER
REG
STATUS
MON
The 4429 SDI Audio Extractor
chapter 1
SDI VIdeo with
OUTPUT
embedded audio
DRIVER
buffered and reclocked
AES 1
Two AES 3 serial
AES 2
digital audio outputs
Left 1
Optional DAC
Right 1
Analogue
audio outputs
Left 2
Optional DAC
Right 2
4429
Issue 1