Crystal Vision Indigo ADCA412 Manuel utilisateur

ADCA412

Analogue to digital audio converter

Crystal Vision Ltd., Lion Technology Park, Station Road East, Whittlesford, Cambridge, CB22 4WL, England.

Tel: +44(0) 1223 497049 Fax: +44(0) 1223 497059 sales@crystalvision.tv www.crystalvision.tv

Crystal Vision Introduction

Contents

1Introduction 3

System overview 4

Control 4

2Statesman 5

2.1 Statesman operation 5

2.2 Using ADCA412 controls 6

Selecting the sample rate mode 6

Selecting the reference 7

Channel swapping, single channel mode and phase inversion 7

Selecting silence options 7

Adjusting the AES output phase 8

Audio monitoring 8

Setting channel gain and input termination 8

3Using the front control panel 9

The ADCA412 menu structure 12

Setting channel gain and input termination 13

Status menus 14

Switch status menus 15

GPI sub-menu 16

Control menus 17

Option menus 18

Set phase adjustment 18

4Using card edge controls 19

Selecting the output clock source 19

Selecting the sample rate mode 19

ADCA412 User Manual R2.1 1 30 October 2018

Crystal Vision Introduction

Channel swapping, single channel mode and phase inversion 20

Setting channel gain and input termination 20

Selecting silence warning options 20

Setting the silence threshold 21

Audio Monitoring 21

5Installation 22

5.1 Rear module connections 24

RM03 24

RM11 25

RM13 27

RM14 28

RM21 29

RM35 30

5.2 Signal earthing 31

5.3 Using GPIs 31

GPI input assignments 31

GPI output assignments (alarms) 31

GPI Connections 32

5.4 Wiring XLR breakout leads 33

5.5 Fitting a digital audio output sub-module 34

5.6 Hardware configuration 35

Setting reference options 35

Setting input analogue gain 36

6Problem solving 37

7Specification 39

Revision 1 RM13 connection table corrected, page 27. 19/06/2011

ADCA412 User Manual R2.1 2 30 October 2018

Crystal Vision Introduction

1 Introduction

The ADCA412 is a dual analogue to digital audio converter designed to convert two dual

channel analogue audio inputs to two AES/EBU audio outputs. The module accepts either

525 or 625 references from analogue composite video, word clock or an AES reference.

There are two operational modes ‘Auto’ that allows flexible phase locked loop sample

rate control to accept a wide reference input frequency range and ‘Xtal’ that allows for

crystal locked operation at 48kHz.

In addition to analogue to digital conversion, the ADCA412 incorporates a number of

powerful features. For example, a channel swap function allows channels 1 and 2 to be

transposed, whilst the phase of the right hand channel can be inverted to correct phasing

errors. Analogue monitoring can be used to listen to each incoming stereo pair.

Also ‘near silence’ detectors monitor the audio signal level in both channels in case they

fall below –50dBFS for more than a selected period of time. Silence warning and loss of

reference warning status are normally routed by default to the GPI port for each channel.

The main features are as follows:

•20/24 bit dual analogue to digital audio converter

•+12dBu to +28dBu input level for 0dBFS digital output with input level pre-sets

for +18dBu and +24dBu

•110 Ohm balanced and 75 Ohm unbalanced output versions via sub-module

option

•choice of rear connectors to accommodate I/O format options

•external reference accepts video, word clock or AES source

•clock regeneration for 48kHz even when locked to video

•automatic 525/625 operation with AES phase adjustment in 625

•wide ranging ‘Auto’ mode for sample rates between 30kHz and 50kHz when

using AES reference outside 48kHz +/- 50 ppm

•precision, re-clocking ‘Xtal’ mode for 48kHz output sample rate when locked to

any 48kHz reference

•channel swap and RH channel invert

•loss of reference input and sustained silence warning via indicators and external

alarms

•GPIs for ‘Xtal’ and ‘Auto’ mode change, channel swap and loss of input/silence

warning

•control and status monitoring via board edge, frame/remote control panel and

Statesman

ADCA412 User Manual R2.1 3 30 October 2018

Crystal Vision Introduction

System overview

The converter is configured as two independent converter channels each with their own

silence detection circuitry but sharing the same reference generation circuitry. Intelligent

audio routing provides for channel swapping, single channel mode and phase inversion.

A high stability ‘Xtal’ lock mode supports high quality crystal locked output sample rates

at 48kHz and a more flexible ‘Auto’ mode uses a phase locked loop for other output

sample rates. The ‘Auto’ mode phase lock loop range is useful when using an AES

reference outside 48kHz +/- 50ppm but within a wide range from below 30kHz to above

50kHz.

Two AES outputs are available for each channel from the 24 bit analogue to digital

converters. Headphone monitoring is provided for the analogue inputs.

Six different rear modules (RM) may be used with ADCA412, the RM03, RM11, RM13,

RM14, RM21 and RM35. Further details of the rear modules can be found in the

Installation chapter.

Control

Control of the card is on a first come first served basis from the card edge, Statesman, the

frame control panel (if fitted) or a remote control panel. For example, if a card edge lever

is moved the unit will switch to and remain in the ‘Local Control Mode’. If any control

panel menu is used, then the unit will switch to and remain in the ‘Remote Control

Mode’. The settings made will be remembered after a power down and the last control

mode used will be retained.

The auto-configuration process performed when an ADCA412 is first powered up, detects

the current configuration settings and restores the appropriate control.

Once this initialisation procedure is complete, the card can be controlled or configured

from Statesman, the card edge, the frame’s local control panel or from a remote control

panel.

ADCA412 User Manual R2.1 4 30 October 2018

Crystal Vision Statesman

2 Statesman

The Crystal Vision Statesman PC control software is designed to control a range of

Crystal Vision modules via serial control from a PC.

The main Statesman application communicates with each module in a frame through an

active control panel with an LCD display or a Statesman only panel without an LCD.

Statesman will not be able to detect modules used in a frame with only a passive front

panel.

2.1 Statesman operation

Once Statesman is configured it should automatically detect any statesman compatible

modules in the connected frame or frames and display them in the main application left

hand Explorer-style window.

Open any frame by clicking on the ‘+’ sign or by double clicking on a frame. Installed

modules should be shown with module icons. Frame and module icons can be named as

desired by right-clicking or using the edit menu and choosing rename.

To aid user recognition of module and frame status quickly, the following colour and size

coding is used:

•A module is shown present by full colour and absent by greyed colour

•A module is shown open by large icon size and closed by small icon

•A module is the source of an active alarm if red and not alarmed if green

Double-clicking on a module will enable the display of the main application menus.

ADCA412 User Manual R2.1 5 30 October 2018

Crystal Vision Statesman

Statesman main application window

The two large control panes shown in the upper and lower halves of the window may

display different menus for the same card, or controls for different cards. Click on the

horizontal button-bar between the two panes to close the lower plane or drag the button to

vary the size of the panes.

Note: For further details of Statesman configuration and operation please refer to the Statesman

manual.

2.2 Using ADCA412 controls

The configuration controls are as follows:

•Mode –48K or Auto

•Reference –AES, Wordclock, Video or Internal

•Silence time – 1.5 to 120 seconds

•Phase inversion

•Audio channel assignment

•LP filter

•Test tone/left ident

•AES output phase

•Status – reference presence, input sample rate, silence detect, GPI state

Configuration

Selecting the sample rate mode

The ADCA412 channel operates in two main modes 48K and Auto. Make the selection

with the mouse by placing a selection dot against the required mode.

The primary mode is for the output sample rate clock to be locked to the reference using a

48kHz crystal oscillator to achieve optimum distortion figures. This is referred to as

‘Xtal’ mode and should be used at all times if possible.

ADCA412 User Manual R2.1 6 30 October 2018

Crystal Vision Statesman

The second mode uses built-in phase locked loops and VCOs to accept an AES reference

which may vary from below 30 kHz to above 50 kHz. This is referred to as ‘Auto’ mode,

and should be used when the AES reference sample rate is outside 48 kHz +/- 50 PPM.

Notes: ‘Auto’ mode can only be used with an AES reference. The ‘Xtal’ mode is designed for use

with a video, word clock or AES reference at 48kHz.

GPI connections to the Auto/ Xtal mode change line will override the card edge switch if

asserted to a logic low or grounded.

Selecting the reference

The ADCA412 output clock may be locked to AES reference, word clock, analogue video

(or black and burst) or left to run off a 48kHz internal clock. References that are available

will be shown with a green indicator.

Make the required reference selection with the mouse by placing a selection dot against

an available clock source.

Note: If a reference source is selected that is not there or is lost, the module will automatically

attempt to select one that is present. If no external reference can be found the internal clock

will be selected.

Channel swapping, single channel mode and phase inversion

Channel routing logic following the silence detection circuits allows the incoming

analogue signals to be assigned to digital outputs in a variety of ways.

The possible variations are as follows:

•channels may be swapped so that Input 1 feeds AES Output 2 and Input 2 feeds AES

Output 1

•both output stages may be assigned to either Input 1 or Input 2 effectively doubling

the duplicate outputs for a single analogue input.

•the phase of the right output of AES Output 1 OR AES Output 2 may be inverted

Make the selection with the mouse by placing a selection dot against the required options.

Note: GPI connections to the shuffling mode lines will override card edge switches if asserted to a

logic low or grounded.

Selecting silence options

Each input channel is equipped with ‘near silence’ detectors. If the audio signal levels are

sustained at below –50dBFS for more than a selected period of time, an indicator for each

channel comes on and an appropriate GPI output can be asserted low.

To change the time required for a sustained silence to raise alarms and display warnings

click on the Silence Time drop down box and select from the following range:

1.5 seconds

8 seconds

every 8 seconds until…

120 seconds

ADCA412 User Manual R2.1 7 30 October 2018

Crystal Vision Statesman

Card-edge switches may be used to prevent silence detection from raising alarms via

these GPI outputs. Please refer to the Using card edge controls chapter for more

information.

Note:

The routing of ‘Loss of Reference Input’ warning to the GPI port cannot be disabled.

Adjusting the AES output phase

The time/phase relationship between the current reference input and the actual AES

output can be adjusted using the rotary AES o/p phase control.

Note:

The Set Phase function does not work unless a valid external reference is selected. If the

internal crystal oscillator is used, the phase control will be disabled.

To return the phase control to zero quickly, hold the mouse over the control, right click

and then select 'Calibrate'.

The phase angle setting is stored in non-volatile memory. Each reference input (AES,

Video or Word Clock) have their own memories for these values.

Every time the unit is powered up or the reference input selected or used is changed, the

new values are loaded into the ADCA output PCB to ensure optimum performance.

Audio monitoring

Audio monitoring is provided at the card edge with two miniature stereo jack sockets. The

left hand socket is connected to the Stereo 1 input signal and the right hand socket is

connected to the Stereo 2 input signal.

Setting channel gain and input termination

Please refer to the Hardware configuration section of the Installation chapter for channel

gain and input termination settings.

ADCA412 User Manual R2.1 8 30 October 2018

Crystal Vision Using the front control panel

3 Using the front control panel

This operational guide assumes that the panel has been set up according to the Panel setup

procedure described in the Crystal Vision Control Panels manual.

Note:

It is ESSENTIAL that the Panel setup procedure is followed and any old or unknown

passwords cleared prior to using the panel for the first time.

At power up, the two line 20-character screen will display ‘Crystal Vision’ followed by

the firmware version number for the control panel. All eight control panel key LEDs will

illuminate.

The Crystal Vision control panel start up display

'Control Panel' then briefly replaces the version number display.

If the control panel firmware has been updated for Statesman control (version 1.5.0 or

higher), Statesman Mode will be entered and the message, ‘Press CAL to Exit’ will be

displayed and the CAL LED will light.

Statesman mode is entered by default

ADCA412 User Manual R2.1 9 30 October 2018

Table des matières

Autres manuels Crystal Vision Convertisseur de média

Crystal Vision

Crystal Vision Indigo CoolFlow MON210 Manuel utilisateur

Crystal Vision

Crystal Vision Indigo Q-Down-AG 3G Manuel utilisateur

Crystal Vision

Crystal Vision DDAA246 Manuel utilisateur

Crystal Vision

Crystal Vision ENDAC Manuel utilisateur

Crystal Vision

Crystal Vision UP-DOWN-VF Series Manuel utilisateur

Crystal Vision

Crystal Vision Up-and-down Manuel utilisateur

Crystal Vision

Crystal Vision ENC116 Manuel utilisateur

Crystal Vision

Crystal Vision ARC-10MC Manuel utilisateur

Crystal Vision

Crystal Vision ADDEC-310 Manuel utilisateur

Crystal Vision

Crystal Vision ARC102 Manuel utilisateur

Crystal Vision

Crystal Vision Indigo Wallbox Q-Down Manuel utilisateur

Crystal Vision

Crystal Vision Indigo ADDEC-210 Manuel utilisateur

Crystal Vision

Crystal Vision Up-and-down-S Manuel utilisateur

Crystal Vision

Crystal Vision Q-Down-A-AFD Manuel utilisateur

Crystal Vision

Crystal Vision Vision 3 Manuel utilisateur

Crystal Vision

Crystal Vision ADDEC-200 Manuel utilisateur

Crystal Vision

Crystal Vision ADC104 Manuel utilisateur

Crystal Vision

Crystal Vision DEC105S Manuel utilisateur

Crystal Vision

Crystal Vision DEC102S Manuel utilisateur

Crystal Vision

Crystal Vision DDAA132P Manuel utilisateur

Crystal Vision

Crystal Vision Indigo Q-Down Mini Manuel utilisateur

Crystal Vision

Crystal Vision Dual 3G-DL Manuel utilisateur

Crystal Vision

Crystal Vision Indigo ALLDAC Manuel utilisateur

Crystal Vision

Crystal Vision DDAA132 Manuel utilisateur

Manuels Convertisseur de média populaires d'autres marques

SoundTraxx

SoundTraxx Blunami BLU-2200 Manuel utilisateur

SPROLINK

SPROLINK VA1 Manuel utilisateur

Acclaim Lighting

Acclaim Lighting DDC-1-AC Manuel utilisateur

Nikon

Nikon AF-S TC-20E III Manuel utilisateur

Axis

Axis AXIS Q7406 Manuel utilisateur

Omega

Omega TAC80B-J Manuel utilisateur

Zoom

Zoom Thunderbolt TAC-2R Manuel utilisateur

OST

OST iConverter 10/100M Manuel utilisateur

Vertiv

Vertiv Netsure Manuel utilisateur

birddog

birddog MINI Manuel utilisateur

Roland

Roland GI-10 Manuel utilisateur

Wallenstein

Wallenstein WX310 Manuel utilisateur

Pace

Pace MSS 200-1 Manuel utilisateur

Solar Converters

Solar Converters EQ 12/24-50 Manuel utilisateur

CYP

CYP EL-7400V Manuel utilisateur

TIE

TIE MIDI 1i1o Manuel utilisateur

DCS

DCS Vivaldi Upsampler Manuel utilisateur

Westermo

Westermo MCW-211 SERIES Manuel utilisateur