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MIRAGE DIG EVO

FM Broadcast Audio Processor

MIRAGE DIG EVO FM broadcast audio processor

Mirage Dig Evolution is a fully digital audio processor based on DSP technology. It is a complete audio signal processor for AM, FM, and TV broadcasts.

Main Features

  • Digital audio inputs and outputs: AES/EBU and optical
  • Balanced analog audio inputs and outputs
  • AES/EBU standard, 24-bit resolution
  • Low structural signal latency (3 ms)
  • Audio processing and compression on four bands
  • Input switching with selectable backup
  • Input monitoring with automatic switching
  • Monitor headphone output
  • AGC on 4 bands and 8 equalization bands
  • Audio process on DSP devices
  • Stereo MPX digital coder
  • Remote control software over Ethernet

General Performance

Frequency response
20 Hz–20 kHz HD; 20 Hz–15 kHz FM; 20 Hz–10 kHz AM
Stop-band rejection
> 78 dB beyond 17 kHz
Noise
> 65 dB in all conditions (depends on the processing)
Total distortion
< 0.01%
Total system separation
> 67 dB (30 Hz – 15 kHz)

Analog Audio Input

Configuration
Left and right
Impedance
10 kohm / 600 ohm balanced
CMRR
> 45 dB from 30 Hz to 15 kHz
A/D conversion
192 kHz sample rate
Sensitivity
±12 dBu
Maximum input level
+15 dBu
Connector
XLR female. Pin 1 chassis. Pins 2 and 3 electronically balanced, floating and symmetrical

Digital Input

Configuration
AES3 professional (IEC-60958)
Impedance
110 ohm balanced
Connector
XLR female
Sample rate
Automatic lock at 32, 44.1, 48, and 96 kHz
Resolution
24 bit

Analog Audio Output

Configuration
Left and right. Flat or pre-emphasized (50 µs or 75 µs)
Impedance
30 ohm, electronically balanced and floating
Minimum load
600 ohm
Maximum output level
+15 dBu into a 600 ohm load
Connector
XLR male. Pin 1 chassis. Pins 2 and 3 electronically balanced, floating and symmetrical

Digital Output

Sample rate
Software selectable: 32, 44.1, 48, and 96 kHz
Resolution
24 bit
Configuration
Stereo AES3, transformer balanced (IEC-60958)
Impedance
110 ohm balanced
Level
-12.00 to 0 dBFS, adjustable
Connector
XLR male

Stereo Generator (MPX version)

Configuration
One output
Pilot frequency
19 kHz ± 0.001% max over temperature
Pilot injection
+4 to 12%
Distortion
< 0.005% at 1 kHz
Noise signal ratio
70 dB (DIN audio, bypass mode), typical
Stereo separation
60 dB typical
Crosstalk main to sub
≥ 48 dB, 30 Hz–15 kHz
Crosstalk sub to main
≥ 46 dB, 30 Hz–15 kHz
38 kHz suppression
70 dB typical
76 kHz suppression
70 dB typical
Composite audio level
0 to 12 dB
Connector
BNC
Output impedance
50 ohm

Data and Logic I/O

Terminal interface
Ethernet / RS232 at the rear, asynchronous
Data input
Full duplex
Format
Selectable
Serial speed
2400 to 19600 baud
Connector
RJ45 / RS232 / USB
Data management
Microprocessor controlled
Memory
Non-volatile flash, 10-year data retention
Logic I/O
DB15 female

General

Mains voltage
90–260 VAC / 50 Hz, full range
Dimensions
48.3 × 19.4 × 4.4 cm, 1 rack unit (W × H × D)
Weight
3.5 kg
Operating temperature
0 to 50°C
Operating humidity
Max 95%, non-condensing