OMNIA 11

OMNIA 11

  • Mis à jour le : 24 août 2018
OMNIA 11 face arrière

OMNIA 11 face arrière

OMNIA.11 SPECIFICATIONS

General

  • Non-linear Crosstalk: > -80 dB, main to sub or sub to main channel (referenced to 100% modulation).

  • 38 kHz Suppression: > 70 dB (referenced to 100% modulation).

  • 76 kHz Suppression: > 80 dB (referenced to 100% modulation).

  • Pilot Protection: > -65 dB relative to 9% pilot injection, ± 1 kHz.

  • 57 kHz (RDS/RBDS) Protection: better than -50 dB.

  • Connectors: Two EMI suppressed female BNC, floating over chassis ground

  • Maximum Load Capacitance: 5nF (at 10 ohms source impedance).

  • Maximum cable length: 100 feet/30 meters RG-58A/U.

 

Analog Audio Input

  • Left/Right Stereo. Electronically balanced.

  • Input impedance 10k ohms resistive.

  • Maximum Input Level: +22 dBu.

  • Nominal Input Level: +4dBu, which nets a -18dBFS input meterreading on a steady-state signal when the Input Gain controlis set to 0.0dB. Program material with a nominal average level(VU reading) of +4dBu will typically produce peak readings on the input meter in the range of -12 dBFS to -6dBFS. This is the correct operating level.

 

A/D Conversion

  • Crystal Semiconductor CS5361, 24 bit 128x over-sampled delta-sigma converter with linear-phase anti-aliasing filter. Pre-ADCanti-alias filter, with high-pass filter at <10 Hz.

  • Connectors: Two, EMI-suppressed XLR-female. Pin 1 chassis ground, Pin 2 “Hot.” 

 

Analog Audio Output

  • Left/Right Stereo. Electronically balanced.

  • Output Impedance 20 ohms.

  • Minimum load Impedance: 600 ohms.

  • Output Level adjustable from -2 dBu to +22dBu peak in 0.1dB steps.


D/A Conversion

  • Crystal Semiconductor CS4391, 24 bit, 128x oversampled.

  • Connectors: Two, EMI-suppressed XLR-male. Pin 1 chassis ground, Pin 2 “Hot.”

 
Frequency Response

  • Complies with the standard 50 or 75 microsecond pre-emphasis curve within ± 0.5 dB, 30 Hz to 15 kHz. The analog left/right output and AES/EBU Digital outputs can be configured for flat or pre- emphasized output. 

 

System Distortion

  • Less than 0.01% THD, 20 Hz – 7.5 kHz. Second harmonic distortion above 7.5 kHz is not audible in the FM system.

  • Signal-Noise Ratio: > -80 dB de-emphasized, 20 Hz – -15 kHz bandwidth, referenced to 100% modulation.

  • The measured noise floor will depend upon the settings of the Input and Output Gain controls and is primarily governed by dynamic range of the Crystal Semiconductor CS5361 A/D Converter which is specified as >110 dB. The dynamic range of the internal digital signal processing chain is >144 dB.

 

Stereo Separation

  • Greater than 65 dB, 20 Hz – -15 kHz; 70 dB typical. 

 

Crosstalk

  • > -70 dB, 20 Hz -- 15 kHz. 

 

System Latency

  • 36ms. “FM” channel, as measured from the analog inputs through the composite MPX output.
     


Composite Outputs

  • Source Impedance: 5 ohms or 75 ohms, jumper-selectable. Single ended and floating over chassis ground. Output Level: 0V to 10V in 0.05V steps, software adjustable.
     


D/A Conversion

  • Texas Instruments/Burr Brown PCM1798, 24-bit sigma-delta converter.
     


Configuration

  • Two electrically independent outputs. Software based level adjustment.
     


Load Impedance

  • 50 ohms or greater load is suggested.
     


Pilot Level

  • Adjustable from 4.0% to 12.0% in 0.1% steps and OFF.
     


Pilot Stability

  • 19 kHz, ± 0.5 Hz.

 


Signal-to-Noise Ratio

  • -85 dB typical, 75 μs de-emphasized, 15 kHz bandwidth, referenced to 100% modulation).

 

Distortion

  • < 0.02% THD 20 Hz – 15 kHz bandwidth, 75 μs de-emphasized, referenced to 100% modulation.

  • Stereo Separation: > 65 dB, 30 Hz – 15 kHz.

  • Linear Crosstalk: > -80 dB, main to sub or sub to main channel, referenced to 100% modulation.

 

Connector

  • XLR-female, EMI-suppressed. Pin 1 chassis ground, Pin 2-3 transformer isolated, balanced, and floating. Standard AES3 specified balanced 110 ohm input impedance.
     

External Sync Range:

  • Automatically accepts sample rates between 32kHz and 96kHz. Connector: XLR-female, EMI- suppressed. Pin 1 chassis ground, pins 2 and 3 transformer isolated, balanced, and floating – AES3 standard 110 ohm impedance.


Remote Control:

  • Via Ethernet using built-in Java (TM) based remote control program integrated into web page interface. All software is served from the built-in web server to any standard web browser; there is nothing to install on the user’s computer.


Connectors:

  • Ethernet - Industry standard EMI-suppressed RJ-45 connector.


GPI Interface:

  • Connector: EMI suppressed DB-15 female connector. 

 

Power Requirements:

  • Voltage: 100-250 VAC, 47-63 Hz.


Power Connector:

  • EMI suppressed IEC male. Detachable 3-wire power cords supplied for US and European use.


Power Supply:

  • Internal. Overvoltage and short circuit protected.


Digital Audio Input:

  • Configuration: Stereo per AES/EBU standard, CS8420 Digital Audio Transceiver with 24 bit resolution, software selection of stereo, mono from left, mono from right or mono from sum.

  • Automatically accepts and locks to input sample rates between 30 and 108 kHz.

  • Connector: XLR-female, EMI-suppressed. Pin 1 chassis ground, pins 2 and 3 transformer isolated, balanced, and floating – AES3 standard 110 ohm impedance.

 

Digital Audio Output #1:

  • Stereo per AES3 standard. Output can be configured in software for flat or pre-emphasized response at 50 or 75 microseconds.

  • Digital Sample Rates: Output sample rates software selectable for 48kHz, Sync to Input or Sync to External.

  • Connector: XLR-male, EMI-suppressed. Pin 1 chassis ground, pins 2 and 3 transformer isolated, balanced, and floating. Standard AES3 specified 110 ohm source impedance.

  • Digital Output Level: -22.0 to 0.0 dBFS software adjustable.

 

Digital Audio Output #2:

  • Stereo per AES3 standard. Output can be configured in software for flat pre-emphasized response at 50 or 75 microseconds.

  • Digital Sample Rates: Output sample rates software selectable for 48kHz, 44.1kHz or Sync to External.

  • Connector: XLR-male, EMI-suppressed. Pin 1 chassis ground, pins 2 and 3 transformer isolated, balanced, and floating. Standard AES3 specified 110 ohm source impedance.

  • Digital Output Level: -22.0 to 0.0 dBFS software adjustable. 

 

External Sync Input:

  • External Sync: Output sample rate can be synchronized to the signal present on the AES/EBU input, or to an AES3 signal applied to the Ext. Sync input connector. (Does not accept Word Clock Inputs)