IQAAD00

IQAAD00
4 Channel Audio Analog to Digital Converter
The IQAAD00 converts two analog stereo pairs, or four analog mono channels into two AES/EBU digital audio streams. Each
analog input is sampled at 48 kHz with 24-bit resolution. Sampling can be free-running, locked to a reference video signal
or 48KHz AES/EBU digital audio stream. Video standard is automatically determined. The IQAAD00 also provides proc. amp
control, channel routing and mixing, up to 0.5s of tracking audio delay and additional fixed delay of up to 3s adjustable in 1 ms
steps.
Features
Order codes
2
IQAAD0
_15-1A
• Converts four analog audio channels into two AES/EBU digital audio
streams
• Firewall for processed PCM audio to provide a continuous output
• Channel-level (Sub-frame) routing
• 4 off 4 channel assignable audio mixers
• Flexible audio delay including per pair fixed delay, common fixed
delay and tracking delay
• Variable audio delay of up to 0.5s which seamlessly tracks an external
video delay via RollTrack / GPI inputs
• Audio proc. amp (gain, mute, polarity)
• RollCall control and monitoring compatible
GPI
AES OUT
1
AES & ANALOG AUDIO IN / OUT
REF
IQAAD0015-1A
Analog Audio ADC. 4 balanced analog audio
inputs, 2 balanced and unbalanced AES/EBU
outputs, 1 GPI.
For more details on enclosure types please refer
to Frames and Hardware section.
Why should you choose this module?
1
2
ADC
Adjustable
Pair Delay
AES TX
Channel
Proc. Amp
Channel
Router
Channel
Proc. Amp
Signal
Monitoring
Additional
Delay
Audio
Tracking
Delay
3
4
ADC
Adjustable
Pair Delay
Channel
Proc. Amp
1
AES TX
2
Assignable
Audio
Mixers
Block Diagram for IQAAD0015-1A
Built-in
Intelligence
GPI Control
&
TTL Pulse I/O
Network Intelligence, Control & Monitoring
O/I
Tone
Generator
Video / AES
Reference
Outputs
Inputs
• Converts four analog audio channels into two AES/EBU digital audio
streams, useful in multi-lingual systems
• Will lock to video and AES/EBU digital audio references
• Balanced or unbalanced output configurations enables use in all
environments
• A comprehensive audio conversion solution with firewall, proc. amp,
audio shuffling and delay
1 x GPI
IQAAD00
4 Channel Audio Analog to Digital Converter
Technical Specification
Inputs and Outputs
Signal Inputs
Analog audio
Video / AES reference
4 Channels (2 Stereo Pairs)
Composite video / AES/EBU (BNC)
Signal Outputs
Unbalanced digital
audio
Balanced digital audio
Standards
2 x AES/EBU (BNC)
2 x AES/EBU (25 Way D-Type)
AES3 - 1992
Control Interface
GPI
1 x Closing contact I/O interface (BNC)
Card Edge and RollCall Controls
Card Edge Controls
NONE
Card Edge Indicators
Reference Present
CPU running / Power
RollCall Functions
Audio Controls
Set line up level
Set headroom
Set audio detector
thresholds
Audio input delay
Input side control proc. audio gain and polarity
Tone Setup
Frequency
Channel ident
Other Controls
Preset unit
User memories
GPI/O set-up
Reference select
+20 to –20 dBu in 1 dB steps
4 to 24 dB in 1 dB steps
High/low levels, silence, overload, time delay
Up to 1.5s additional delay in 1 ms steps
Independent Gain, Mute, Polarity control over
input channels. +18 dB to –18 dB in 0.1 dB steps
Channel routing
Output channels routed from analog pairs 1
and 2, test tone and silence
Output side control proc. gain and polarity
Independent Gain, Mute, and Polarity control
over output channels. +18 dB to –18 dB in 0.1 dB
steps
Global delay offset
Up to +1.5 s in 1 ms steps, common to all
processed audio
Variable audio delay
control source
Up to 0.5 s from RollTrack + GPI
Tone frequency,
amplitude and ident
2 channel tone generator. 100 Hz to 15 kHz in
100 Hz steps
RollTrack Output
Delay
Reference state
GPI
RollTrack + fixed
Current audio delay
Ref Lost, Ref Present, Ref error [error: AES
reference sample rate not 48 kHz]
High, Low, Inactive
Specifications
Analog Audio Input (Balanced)
Analog input impedance10 k ohms
Frequency response
20 Hz to 20 kHz (±0.1 dB)
Distortion (THD+N)
Better than -95 dB, 1kHz@ - 1 dBFS
Dynamic range
>106 dB
Max input level
+24 dBu
Digital Audio Output (Balanced)
Connector / format
25 W D
Level
3 V p-p typical into 110 Ohms
Digital Audio Output (Unbalanced)
Connector / format
BNC
Level
1 V p-p typical into 75 Ohms
Reference
Reference return loss
Reference input level
Analog reference input
Standard
Power Consumption
Module power
consumption
11/15
Returns settings to factory defaults
Name, clear, save and read 8 user memories
May be attached to any memory function/
polarity
Free Run, AES/EBU or Video PAL/NTSC
Reporting (* also Logged)
Audio silence, high level,
low level, overflow
For processed audio channels only
No reference
*No reference present
Reference error
AES reference sample rate not 48 kHz
RollTrack Input
Delay
One green LED, flashing = OK
100 Hz to 15 kHz in 100 Hz steps
0.5 s interruption every 2 s
Better than -35 dB to 5.8 MHz
1 V p-p ± 3 dB
48 kHz AES/EBU, 625/525 line
6.5 W max (A Frames)
5 PR (B Frames)