Grass Valley ADX-1101 User Manual

DENSITÉ series

ADX-1101

Analog Audio De-Embedder

Guide to Installation and Operation

M678-9600-100

6 August 2013

Miranda Technologies

3499 Douglas-B.-Floreani

St-Laurent, Québec, Canada H4S 2C6

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© 2013 Miranda Technologies

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GUIDE TO INSTALLATION AND OPERATION

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ADX-1101

GUIDE TO INSTALLATION AND OPERATION

Table of Contents

1 ADX-1101 Analog Audio De-Embedder .................................................................................. 1

1.1 Introduction ......................................................................................................................................... 1

1.2 Features .............................................................................................................................................. 1

1.3 Functional Diagram ............................................................................................................................. 1

2 Installation ................................................................................................................................ 2

2.1 Preparation .......................................................................................................................................... 2

2.2 Installation in the Densité frame .......................................................................................................... 2

2.3 ADX-1101-DRP / ADX-1101-DRP-3RU Rear Panel........................................................................... 3

3 Operation .................................................................................................................................. 4

4 Technical Specifications ......................................................................................................... 5

ADX-1101

GUIDE TO INSTALLATION AND OPERATION

ADX-1101

GUIDE TO INSTALLATION AND OPERATION

1 ADX-1101 Analog Audio De-Embedder

1.1 Introduction

The ADX-1101 is a high-quality, high-performance analog aud io de-embedder designed to extract two analog audio
stereo signals from a single SDI signal. The ADX-1101 comprises an ADX-1121 card (2 AES De-Embedder) and a
DAC-1721 card (AES to Analog Audio Converter). The two cards are bundled via a special rear connector panel that
includes the necessary card interconnections, eliminating the need for external AES connections and reducing the
number of rear panel connectors.

The de-embedding process of the ADX-1101 includes automatic 525/625 detection, output audio silence generation
upon loss of SDI input, automatic equalization for up to 350 meters of Belden 1694A cable at 270 Mbps, and LTC de­embedding. The audio processing includes 24 bit digital-to-analog conversion and individual mute and level
adjustment for every channel.

1.2 Features

• SDI input with up to 350m of cable equalization

• 3 reclocked SDI outputs

• Auto-detects 525/625 line format

• Outputs two analog audio stereo signals

• Selectable routing of groups to audio pairs

• Left/right channels swappable

• Selectable audio delay (up to 6 fields)

• 24 bit digital-to-analog conversion

• 0 dBFS selectable (0 to +24 dBu)

• -96 to +12 dB audio level adjustment (0.5 dB steps)

• Audio and video signal presence detection and remote reporting

• Remote configuration and control

• Built-in audio test signal

1.3 Functional Diagram

ADX-1101 | 1

GUIDE TO INSTALLATION AND OPERATION

ADX-1121

DAC-1721

ADX-1101-DRP

(view from front of frame)

2 Installation

2.1 Preparation

The following items are required for the installation of your ADX-1101 in a Densité-series frame:

• ADX-1101-DRP Rear Pan e l (for Densité 2 frames) or ADX-1101-DRP-3RU (for Densité 3 frames)

• ADX-1121 AES Embedder (2RU or 3RU, per frame type)

• DAC-1721 AES-to-Dual Analog Audio Converter (2RU or 3RU, per frame type)

Note that the ADX-1101-DRP r ear pan el may be ordered separately, if the user already has the two associated cards.

2.2 Installation in the Densité frame

The ADX-1101-DRP rear connector panel must be mounted in a DENSITÉ frame. It is not necessary to switch off the
frame’s power when installing or removing the panel. See the DENSITÉ Frame manual for detailed instructions for
installing cards and their associated rear panels. (These instructions also apply to the ADX-1101-DRP-3RU).

1. Install the ADX-1101-DRP so that it occupies rear panel space covering two adjacent free slots in the Densité
frame. Install the rear panel with the cards out of the frame.

2. Install the ADX-1121 in the leftmost of the two slots occupied by the ADX-1101-DRP (as seen from the front of
the frame)

3. Install the DAC-1721 in the rightmost of the two slots occupied by the ADX-1101-DRP (as seen from the front of
the frame.

If a card is placed in the wrong slot, its front panel LED will flash red. Move the card to other slot for correct operation.
No damage will result to the card should this occur.

2 | ADX-1101

GUIDE TO INSTALLATION AND OPERATION

Audio 1L
Audio 1R

Audio 2L
Audio 2R

SDI

LTC

From/ To ADX-1121

From/ To DAC-1721

SDI

AES1

AES2

SDI
SDI

SDI OUT

+ G –+ G –

+ G –

+ G –

ANALOG AUDIO OUT

1 LEFT

1 RIGHT

2 LEFT

2 RIGHT

LTC OUT

SDI IN SDI OUT

2

1

3

ADX-1101

2.3 ADX-1101-DRP / ADX-1101-DRP-3RU Rear Panel

The following diagram shows the signal flow through the ADX-1101-DRP / ADX-1101-DRP-3RU rear panel.

Figure 1.1 Signal flow diagram ADX-1101-DRP / ADX-1101-DRP-3RU

The rear panel connections are as follows:
SDI IN – serial digital input
Connect a serial digital vide o sign al conforming to the SMPTE 259M standard to the BNC

labeled SDI IN. The ADX-1101 will automatically switch to the detected line format.

SDI OUT – serial digital outputs (3)

Pass-through from the SDI IN

LTC OUT

LTC extracted from the SDI input in the ADX-11211 card.

ANAL OG AU D I O OUT (2 stereo pairs)

Analog audio de-embedded from the input SDI signal.

ADX-1101-DRP

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GUIDE TO INSTALLATION AND OPERATION

3 Operation

The two cards associated with the ADX-1101 are operated just as if they were individually installed and connected.

• If you are using iControl, they will appear as individual cards, located in adjacent slots in their frame:

 ADX-1121
 DAC-1721

• There will be no item identified as ADX-1101 in the iControl system.

The User Manuals for each card are separate documents, and should be consulted for detailed descriptions and
operating procedures as required.

• ADX-1121 User Manual (Miranda document M678-9900-xxx)

• DAC-1721 User Manual (Miranda document M698-9900-xxx)

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GUIDE TO INSTALLATION AND OPERATION

4 Technical Specifications

VIDEO INPUT

Video signal: SMPTE 259M-C (270 Mbps)
SMPTE 272M-C (embedded audio)
Cable length: Up to 350 m of Belden 1694A
Return loss: >15 dB 5 MHz to 270 MHz

LTC OU T PUT
Signal: Reconstructed LTC from sampled input to embedder
Impedance: <55 ohm source for Hi-Z termination
Level: 1.0 Vp-p

VIDEO OUTPUT
Video signal: SMPTE-259M-C (270 Mbps)
Return loss: >15 dB up to 270 MHz
Jitter: <0.2 UI p-p (wideband)

AUDIO OUTPUTS (2)
Signal: Balanced analog audio
Impedance: <50 ohm
Maximum level: 24 dBu / 600 ohm

LTC PROCESSING
Latency: 8 video lines *
LTC delay: None or tracking of audio delay
Test signals: Audio - 1k Hz tone (R steady, L pulsed)

PROCESSING PERFORMANCE
Signal path: 10-bit video / 20/24-bit audio
Sampling: 48 kHz
SNR: >116 dB (a weighted)
Distortion: < -96 dB
Crosstalk: < -100 dB (20 Hz to 20 kHz)
Freq. response: ±0.2 dB (20 Hz to 20 kHz)

De-emphasis: ±0.3 dB (50-15 ms)
Video delay: 500 ns
Audio delay: 1.3 ms - up to 6 video fields (one field steps)
Tone generator: 1 kHz sine wave interrupted on left channel (250 ms / 3 s)

ELECTRICAL
Power: 9.3 W

* Combined embedding and extraction, applicable to combination of AMX-1101 and ADX-1101

ADX-1101 | 5