Ensemble Designs BE-20 Specifications

BrightEye 20

Analog Audio / AES Embedder
or Disembedder

BrightEye 20 is a versatile audio Mux/Demux. With
SDI video I/O, and both analog and AES I/O, it is eld
congurable for embedding or disembedding.

When congured as a multiplexer, BrightEye 20 has one
serial digital video input and two AES digital audio inputs.
Alternately, the 4 channel analog audio input can be used.
The audio is embedded into the 601 video stream. The
output is a serial digital video stream that contains the
original video plus the two AES streams or four analog
audio channels.

When congured as a demultiplexer, audio signals present
in the incoming serial digital video signal are extracted and
delivered simultaneously as two AES digital audio streams
and as four analog audio channels.

Audio mixing, level adjustments, and channel shuing
can be applied to both the multiplexer and demultiplexer
modes, and are accessed through BrightEye Mac or PC
software. Audio group selection is also made through
BrightEye Mac or PC software. A variety of audio connectors
and adapters are available for integrating BrightEye 20 to
any type of system.

Audio Embedder or Disembedder

Analog and Digital Inputs

Analog and Digital Outputs

Use in Desktop and Broadcast Applications

42

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BrightEye 20

AES 1/2

Input

Analog Audio

Outputs

4 Channel

Mixer

Shuffler

4 Channel

Audio

DAC

SRC

SD SDI In

SD SDI In

Embedder

AES

Rcvr

AES 3/4

Input

SRC

AES

Rcvr

AES 1/2 Out

4 Channel

Mixer

Shuffler

1/2

3/4

AES

Formatter

4 Channel

Audio

ADC

SD SDI In

SD SDI Out

Embedder

AES 3/4 Out

AES Mux (Cascade or Replace) Mode

44

Analog Mux (Cascade or Replace) Mode

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Specications

BrightEye 20

Video Input

Number One
Signal Type 270 Mb/s SD Serial Digital
(SMPTE 259M)
Impedance 75 Ω
Return Loss >15 dB
Max Cable Length 300 meters
Automatic Input Cable Equalization

Video Output

Number One
Signal Type 270 Mb/s SD Serial Digital
(SMPTE 259M)
Impedance 75 Ω
Return Loss >15 dB
Output DC None (AC coupled)

Analog Audio Inputs

Number Four
(selectable as inputs or outputs)
Type Balanced
Impedance >15K Ω
Maximum Input Level 24 dBu
CMRR >60 dB, 20 Hz to 10 KHz
Quantization 24 bits, 128 x oversampled
Sample Rate 48 KHz
Reference Level -10 dBu or +4 dBu
Frequency Response ±0.1 dB, 20 Hz to 20 KHz
Crosstalk <106 dB
Dynamic Range >106 dB

AES/EBU Digital Inputs

Number Two (total of four channels)
(selectable as inputs or outputs)
Type AES3id
Connector Coaxial, 75 Ω
Bit Depth 20 and 24 Bit
Sample Rate 30 KHz to 96 KHz
(Sample Rate Converted
internally to 48 KHz)

Reference Level -18 or -20 dBFS (selectable)
AC-3, Dolby-E Supported when inputs are
synchronous

Analog Audio Outputs

Number Four (selectable as inputs
or outputs)
Type Balanced, transformerless
Impedance 30 Ω
Maximum Output Level 24 dBu
Resolution 24 bits, 128 x oversampled
Reference Level -10 dBu or +4 dBu
Frequency Response ± 0.1 dB, 20 Hz to 20 KHz
Crosstalk <106 dB
Dynamic Range >106 dB

AES/EBU Digital Outputs

Number Two (total of four channels)
(selectable as inputs or outputs)
Type AES3id
Connector Coaxial, 75 Ω
Bit Depth 24 Bit
Sample Rate 48 KHz
Synchronous to video output
Reference Level -18 or -20 dBFS (selectable)

General Specications

Size 5.625” W x 0.8” H x 5.5” D
(143 mm x 20 mm x 140 mm)
including connectors
Power 12 volts, 7 watts
(100-230 VAC modular power
supply not included)
Temperature Range 0 to 40° C ambient
Relative Humidity 0 to 95%, non-condensing

BrightEye 20 Block Diagrams on following pages

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43

Demux Mode

AES Ouputs

Ch 1/2

AES Ouputs

Ch 3/4

4 Channel

Mixer

Shuffler

Ch 1/2

Ch 3/4

AES

Formatter

Demux

SD SDI In

SD SDI Out

BrightEye 20

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45