Enova DGX Audio Insert/Extract Boards
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Hardware Reference Manual – Enova DGX 100 Series Digital Media Switchers
Enova DGX Audio Insert/Extract Boards – Specifications
Applies to Audio Insert/Extract Board FG1058-705.
NOTE: Only 2 channel L-PCM audio is supported from the AIE extraction port. Multi-channel (>2 channel) L-PCM formats will pass
incomplete audio if extracted (only 2 of the multiple channels will be extracted). All other audio formats will be muted at the
extraction port.
System Examples
The examples below show some uses for the insertion/extraction functionality on the AIE Board. Individual connectors on an AIE
Board can be set to insert or extract audio onto/from their numerically corresponding standard inputs/outputs.
NOTE: The Enova DGX 6400 enclosure’s AIE Boards are located top and bottom on the rear. Therefore, this section’s references to left
and right expansion board slots correspond to the top and bottom expansion board slots respectively on the Enova DGX 6400.
AIE Board in Left Expansion Board Slot – Extract Function
Extracted audio remains intact from standard input to standard output but is also sent on to an auxiliary audio system for further
distribution.
Enova DGX Local Analog Audio Specifications
Audio Insertion
Audio Signal Type • Enova DGX 800: Analog stereo, up to 8 channels per enclosure
• Enova DGX 1600/3200: Analog stereo, up to 16 channels per enclosure
• Enova DGX 6400: Analog stereo, up to 64 channels per enclosure
Analog Input Level (max.) +3 dBu, unbalanced
Input Impedance 10 kohms
Analog to Digital Conversion 48 kHz sample rate, 24-bit
Analog to Digital Reference Level +3 dBu = 0 dBfs
Optimal Analog Audio Operating Range -30 dBu to +2 dBu
Connectors 8 pluggable, dual three-position, terminal blocks each containing two
single-ended stereo contacts (supports 28 to 18 AWG)
Audio Extraction
Audio Signal Type • Enova DGX 800: Analog stereo, up to 8 channels per enclosure
• Enova DGX 1600/3200: Analog stereo, up to 16 channels per enclosure
• Enova DGX 6400: Analog stereo, up to 64 channels per enclosure
Audio Signal Type Support Requires 2 CH L-PCM (32, 44.1, 48, 88.2, 96, 176.4, and 192 kHz at bit depths of
16, 20, and 24)
Analog Output Level (max.) +2.8 dBu, unbalanced, >=5 kohms
Output Frequency Response <+/-0.3 dB, 20 Hz to 20 kHz
Audio Output THD+N <0.04%, 1 kHz, -10 dBu to +2.8 dBu
Audio Output SNR >95 dB, 20 Hz to 20 kHz, Vin = +3 dBu
Digital to Analog Resolution 24 bit, 2 Channel (stereo audio)
Digital to Analog Reference Level 0 dBfs = +3 dBu
Optimal Digital Audio Operating Range -30 dBfs to -2 dBfs
Audio Synchronization Progressive and interlaced video formats @ 60 Hz frame rate: Audio is actively
delayed to match video within 6.7 ms leading up to 9.3 ms lagging
Connector 8 pluggable, dual three-position, terminal blocks each containing two
single-ended stereo contacts (supports 28 to 18 AWG)
FIG. 92 Audio extracted from HDMI input signal and sent to auxiliary audio system
AC
DC
FLT
AC
DC
FLT
HDMI with embedded audio
Source device
Audio connector set to “Extract”
Analog stereo audio
Auxiliary audio system
Destination device
Signal through system
HDMI-embedded audio remains intact
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