IQAAD00
Four-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 48 kHz 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
- 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)
- GV Orbit control and monitoring compatible
SPECIFICATIONS
Inputs and Outputs
Signal Inputs
Analog audio: 4 channels (2 stereo pairs)
Video/AES reference: Composite video/AES/EBU (BNC)
Signal Outputs
Unbalanced digital audio: 2x AES/EBU (BNC)
Balanced digital audio: 2x AES/EBU (25-way D-type)
Standards: AES3 - 1992
Control Interface
GPI: 1x closing contact I/O interface (BNC)
Card Edge and Remote Controls
Card Edge Controls
NONE
Card Edge Indicators
Reference Present
CPU running/power: One green LED, flashing = OK
Remote Control Functions
Audio Controls
Set line up level: +20 to -20 dBu in 1 dB steps
Set headroom: 4 to 24 dB in 1 dB steps
Set audio detector thresholds: High/low levels, silence, overload, time delay
Audio input delay: Up to 1.5s additional delay in 1 ms steps
Input side control proc audio gain and polarity: 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
Tone Setup
Frequency: 100 Hz to 15 kHz in 100 Hz steps
Channel ident: 0.5s interruption every 2s
Other Controls
Preset unit: Returns settings to factory defaults
User memories: Name, clear, save and read 8 user memories
GPI/O setup: May be attached to any memory function/polarity
Reference select: Free Run, AES/EBU or Video PAL/NTSC
Logging
Reference State: Std (525, 625, AES)/WARN (Loss, 525, 625, AES), Error AES, None
Processed Audio Channels State (BUS_L/R): OK/WARN (Silent, Quite, High, Overload)
RollTrack Message Status: Send and Received OK/ Message Not Acknowledged
RollTrack Input
Delay: RollTrack + fixed
RollTrack Output
Delay: Current audio delay
Reference state: Ref Lost, Ref Present, Ref error (error: AES reference sample rate not 48 kHz)
GPI: High, Low, Inactive
General Specifications
Analog Audio Input (Balanced)
Analog input impedance: 10 kΩ
Frequency response: 20 Hz to 20 kHz (±0.1 dB)
Distortion (THD+N): Better than -95 dB, 1 kHz@ - 1 dBFS
Dynamic range: >106 dB
Max input level: +24 dBu
Digital Audio Output (Balanced)
Connector/format: 25-way D-type
Level: 3 Vp-p typical into 110Ω
Digital Audio Output (Unbalanced)
Connector/format: BNC
Level: 1 Vp-p typical into 75Ω
Reference
Reference return loss: Better than -35 dB to 5.8 MHz
Reference input level: 1 Vp-p ± 3 dB
Analog reference input standard: 48 kHz AES/EBU, 625/525 line
Power Consumption
Module power consumption:
- 6.5 W max (A Frames)
- 5 PR (B Frames)
MEDIA GALLERY


ORDERING INFORMATION
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 the IQ Modular Enclosures datasheet.