Dual channel symbolRemote control symbol

ADCA412

What is it?

ADCA412 analogue audio to AES digital audio converterDual analogue audio to AES digital audio converter.

Reason to choose it...

You'll get clear, noise-free audio thanks to the excellent 24 bit performance, while the fact that it's got two independent channels means you can potentially fit up to 24 audio converters in 2U.

Ideal for...

Any applications where you need to convert analogue audio to 75 ohm or 110 ohm AES and perfect if you're working with multiple channels and your rack space is limited.

Got a question?

We would be very happy to answer any questions you've got about the ADCA412. Either send us an e-mail or get an immediate response by speaking to us now on our Live Chat...

 
  • Main features
  • Details
  • Specs
  • What outputs do I get?
  • What do I order?
  • Who's using it?

Main features

  • Dual channel analogue to digital audio converter
  • 24 bit AES/EBU outputs (up to four per channel)
  • 110 ohm balanced or 75 ohm unbalanced output versions available (by changeable module)
  • Excellent noise and distortion figures
  • Works with 30kHz to 50kHz sampling rates
  • Very stable 48kHz clock generator that can be referenced to video, AES or word clock
  • Adjust the audio levels: +12dBu to +28dBu input level for 0dBFS digital output
  • Inputs and outputs accessed by using an appropriate rear module (either RM03, RM11, RM13, RM14, RM21 or RM35)
  • Housed in Indigo rack frames
  • Space-saving: 100mm x 266mm module allows 12 ADCA412 in 2U (six in 1U and two in desk top box)
  • Flexible control: board edge, GPI, frame integrated control panel, Ethernet remote control panel (REMIND-E), SNMP or PC software
  • Five year warranty (with product registration)

Details

A space-saving way to convert analogue audio to AES

The ADCA412 provides exceptional 24 bit conversion from analogue audio to AES/EBU, giving out clear, noise-free audio.

With two independent channels this space-saving 100mm x 266mm module fits 24 converters in 2U, at a price comparable to other single channel products.

The ADCA412 is ideal for any environment where you need to convert from analogue to digital audio, especially multi-channel applications.

Use it with multiple data rates

The ADCA412 can be used with any sampling data rates between 30kHz and 50kHz, with most applications typically involving 48kHz sampling.

Flexible reference sources

It offers the flexibility to take the reference from three different sources: Black & Burst video (48kHz sampling only), another AES feed or word clock.

The crystal controlled phase locked loop ensures an extremely stable clock is generated at 48kHz even when referenced to video, resulting in the best possible performance.

Having the AES locked to video is especially useful for audio which may later be embedded into a video feed.

Output 75 ohm or 110 ohm audio

The ADCA412 is available in two versions, with the AES outputs configured as either 110 ohm balanced or 75 ohm unbalanced depending on which OPAES output module is fitted.

Adjust the audio level

Analogue audio input levels are preset to give either +18dBu or +24dBu for 0dBFS digital (the most common audio levels within television stations), or can be continuously adjusted from +12dBu to +28dBu.

Useful features

Powerful features include a channel swap function allowing channels 1 and 2 to be transposed, while the phase of the right hand channel can be inverted to correct phasing errors.

Should multiple outputs from a single stereo input be required, there is an option to convert to single channel operation.

Listening to each incoming analogue stereo pair is quick and easy: just insert headphones into the jack at the front of the board.

Save rack space

Crystal Vision frameADCA412 is a space-saving 100mm x 266mm module which is housed alongside any other product in the standard frames – available in 2U, 1U and desk top box sizes – with up to 12 boards (24 channels) fitting in 2U.

Get the outputs you need

The choice of six frame rear modules means you can choose the outputs you need for your application.

The RM03, RM11 and RM35 rear modules give four 110 ohm AES outputs per channel, with the 'easywire' RM35 featuring its audio connections on a 64-way DIN 41612 connector which stretches the full width of the rear module and therefore gives more room to solder the wires on to the individual pins.

The RM13 rear module gives three 75 ohm AES outputs per channel with a Black and Burst loop-through, the RM14 four 75 ohm AES outputs per channel with a Black and Burst loop-through and the RM21 two 75 ohm AES outputs per channel.

Flexible control

Control and status monitoring on the ADCA412 is flexible and sophisticated. Options include board edge, an integrated control panel on the AE frames, a remote control panel, SNMP or the Statesman PC Control System.

GPI functionality is especially useful, with available warnings including sustained silence – ideal for continuous feeds. The duration of silence before a warning is given can be programmed from 1.5 to 120 seconds in eight second steps.

 

Specs

MECHANICAL

Standard Crystal Vision module 266mm x 100mm

Weight: 200g

Power consumption: 6.25 Watts

AUDIO INPUTS

Two analogue stereo inputs

High impedance input (>20 kohm)

Level range: 0dBFS = +28dBu max; 0dBFS = +12dBu min

Factory set default: 0dBFS = +18dBu and +24dBu by on-board link

Reference input: Analogue video Black & Burst or mixed syncs for 48kHz sampling. AES reference or word clock for 32kHz, 44.1kHz or 48kHz sampling

48kHz clock will be regenerated, 32kHz and 44.1kHz taken directly from reference

AUDIO OUTPUTS

Maximum of four 24 bit stereo outputs per channel (two outputs with frame rear modules RM14 and RM21, three with RM13 and four with RM03, RM11 and 'easywire' RM35)

AES3 110 ohm (balanced) D-Type or AES3-id 75 ohm (unbalanced) BNC. Order version required by selecting OPAES-110 or OPAES-75 output module

Reference rear module loop-through available on RM13 and RM14 - loop does not need ADCA412 to be fitted as rear module has passive circuitry required

Can convert to single channel operation if extra outputs from single input required

Works with any sampling rates between 30kHz and 50kHz, usually 32, 44.1 and 48kHz sampling

Signal to noise: Weighted better than -98dB

Total Harmonic Distortion (THD): <.005% at +18dBu/+24dBu with 48kHz sampling

Interchannel crosstalk: <-110dB

Frequency response: +/- 0.1dB 20Hz to 20kHz

DELAY THROUGH BOARD

100ns

GPI INPUT LEVELS

Active pull to ground, pulled up to +5V through 10 kohm

GPI OUTPUT LEVELS

Electrically: Open collector transistors 30V, 270 ohm current limit resistors. Pulled up to +5V through 6800 ohm

GPI INPUTS

Mono input repeat on stereo outputs

Swap channels 1 and 2

Reference select (two GPIs select video, AES or word clock)

GPI OUTPUTS

Loss of reference or sustained silence (one output for each analogue stereo input)

Set period of silence before indication from 1.5 to 120 seconds in 8 second increments

LED INDICATION OF:

Power supplies

Clock reference

Audio silent

LOCAL CONTROL

Options and silence indication delay set by switches at board edge

REMOTE CONTROL

RS422/485

19200 baud, 8 bits, 1 stop no parity

Control from integrated control panel on AE frames and remote panel

Statesman allows control from any PC on a network

SNMP monitoring and control available as a frame option

 

What outputs do I get?

Signal inputs and outputs are accessed by using an appropriate rear module.

The rear modules slot on to the back of the frame and typically feature BNC, D-Type, 'easywire' DIN 41612, RJ45 and optical connectors. The single and double slot rear modules can be used with all three frame sizes, while the quad slot rear modules just fit the 2U frames.

There are six rear modules available for the ADCA412...

RM03 rear module label and connections

More about the RM03

Connectors: 25-way standard density D-Type and 15-way standard density D-Type

Frame slots used: 1

Boards in 2U: 12

Boards in 1U: 6

Boards in desk top box: 2

Why use it: You are converting analogue audio to 110 ohm AES and you want four outputs of each channel

Also used for: DACA412, DADA208, DADA208D and DADA208N

Real RM03 rear module

RM03 rear module label for ADCA412

ADCA412 inputs and outputs with RM03 rear module

 

RM11 rear module label and connections

More about the RM11

Connectors: 26-way high density D-Type, 15-way standard density D-Type and BNC for A/D ref

Frame slots used: 1

Boards in 2U: 12

Boards in 1U: 6

Boards in desk top box: 2

Why use it: You are converting analogue audio to 110 ohm AES and you want four outputs of each channel - plus an easy way to input your video reference via the BNC connector

Also used for: DACA412

Real RM11 rear module

RM11 rear module label for ADCA412

ADCA412 inputs and outputs with RM11 rear module

 

RM13 rear module label and connections

More about the RM13

Connectors: 9 BNCs and 15-way standard density D-Type (75 ohm digital audio on BNCs)

Frame slots used: 2

Boards in 2U: 6

Boards in 1U: 3

Boards in desk top box: 1

Why use it: You are converting analogue audio to 75 ohm AES, and you need three outputs per channel plus a loop of your analogue video reference

Also used for: DACA412, DADA208, DADA208D and DADA208N

Real RM13 rear module

RM13 rear module label for ADCA412ADCA412 inputs and outputs with RM13 rear module

 

RM14 rear module label and connections

More about the RM14

Connectors: 15 BNCs (for 75 ohm AES) and 3 15-way standard density D-Types

Frame slots used: 4 (for 3 boards)

Boards in 2U: 9

Boards in 1U: N/A

Boards in desk top box: N/A

Why use it: You are converting analogue audio to 75 ohm AES and using three or more ADCA412. If you need an analogue reference loop, it allows you to fit more boards in a frame compared to using the RM13. (NB. The three ADCA412s share two reference BNCs and reference loop BNC)

Also used for: No other boards

Real RM14 rear module

RM14 rear module label for ADCA412

ADCA412 inputs and outputs with RM14 rear module

 

RM21 rear module label and connections

More about the RM21

Connectors: 4 BNCs and 15-way standard density D-Type

Frame slots used: 1

Boards in 2U: 12

Boards in 1U: 6

Boards in desk top box: 2

Why use it: You are converting analogue audio to 75 ohm AES with two outputs of each channel - and you want to fit as many boards in a frame as possible.

Also used for: DADA208, DADA208D and DADA208N

Real RM21 rear module

RM21 rear module label for ADCA412

ADCA412 inputs and outputs with RM21 rear module

 

RM35 rear module label and connections

More about the RM35

Connectors: 'Easywire' 64-way DIN 41612 connector

Frame slots used: 1

Boards in 2U: 12

Boards in 1U: 6

Boards in desk top box: 2

Why use it: You are converting analogue audio to 110 ohm AES and you want four outputs of each channel. You'll get the same outputs as the RM03, but some people find the RM35 easier to wire

Also used for: DACA412, DADA208, DADA208D and DADA208N

Real RM35 rear module

RM35 rear module label for ADCA412

ADCA412 inputs and outputs with RM35 rear module

 

For more visual technical information, download the ADCA412 block diagram.

What do I order?

Request a quote...

Read the ordering info below then fill in this form to request a quote for the ADCA412 analogue to digital audio converter and accessories...

Your contact details
Items for quote

First you need the 100mm x 266mm module...

ADCA412
24 bit dual analogue to AES/EBU audio converter. Requires OPAES output module

Select the appropriate output module to fix to the motherboard, depending on whether you're converting 75 ohm or 110 ohm AES...

OPAES-75
75 ohm AES output module
OPAES-110
110 ohm AES output module

Next choose your frame size and power supplies - from 2U to desk top box...

Indigo 2AE
2U frame with power supply redundancy and active front panel featuring Statesman CPU and integrated control panel for up to 12 Crystal Vision modules. Allows Ethernet connection to a PC running Statesman
Indigo 2SE
CoolFlow 2U frame with power supply redundancy and active front panel featuring Statesman CPU for up to 12 Crystal Vision modules. Allows Ethernet connection to a PC running Statesman
Indigo 1AE
1U frame with active front panel featuring Statesman CPU and integrated control panel for up to six Crystal Vision modules. Allows Ethernet connection to a PC running Statesman
Indigo 1SE
1U frame with active front panel featuring Statesman CPU for up to six Crystal Vision modules. Allows Ethernet connection to a PC running Statesman
Indigo 1AE-DP
1U frame with power supply redundancy and active front panel featuring Statesman CPU and integrated control panel for up to six Crystal Vision modules. Includes two fixed PS-80i power supplies. Allows Ethernet connection to a PC running Statesman
Indigo 1SE-DP
1U frame with power supply redundancy and active front panel featuring Statesman CPU for up to six Crystal Vision modules. Includes two fixed PS-80i power supplies. Allows Ethernet connection to a PC running Statesman
Indigo DT
Desk top box with passive front panel for up to two Crystal Vision modules. Includes fixed power supply
Indigo DTSE
Desk top box with active front panel featuring Statesman CPU for up to two Crystal Vision modules. Includes fixed power supply. Allows Ethernet connection to a PC running Statesman
PSU-160i
160 Watts power supply for 1U (non-DP) and 2U frames. 1U frames require one PSU-160i (no redundancy). 2U frames require either one PSU-160i (no redundancy) or two PSU-160i if power supply redundancy is required

You need a rear module to access your inputs and outputs...

RM03
Single slot frame rear module. Allows maximum number of ADCA412 in frame (12 in 2U, six in 1U, two in desk top box). Gives access to four 110 ohm AES outputs per channel
RM11
Single slot frame rear module. Allows maximum number of ADCA412 in frame (12 in 2U, six in 1U, two in desk top box). Gives access to four 110 ohm AES outputs per channel
RM13
Two slot frame rear module. Allows six ADCA412 in 2U, three in 1U and one in desk top box. Gives access to three 75 ohm AES outputs per channel and a rear module Black and Burst loop-through
RM14
Four slot frame rear module. One rear module used for three ADCA412, allowing nine ADCA412 in 2U. Gives access to two 75 ohm AES outputs per channel and a rear module Black and Burst loop-through
RM21
Single slot frame rear module. Allows maximum number of ADCA412 in frame (12 in 2U, six in 1U, two in desk top box). Gives access to two 75 ohm AES outputs per channel
RM35
Single slot frame rear module with easywire DIN 41612 connector. Allows maximum number of ADCA412 in frame (12 in 2U, six in 1U, two in desk top box). Gives access to four 110 ohm AES outputs per channel

Finally - control. Use board edge switches, the integrated control panel if you've selected one of the 'AE' frames, or alternatively order one of the items below...

REMIND-E
19" Ethernet remote control panel (control an unlimited number of Crystal Vision frames over an Ethernet network)
Statesman
PC Control System
SNMP
SNMP monitoring and control available as a frame option

 

Who's using it?

Users of the ADCA412 analogue to digital audio converter include...

  • AVC (UK)
  • BBC (UK)
  • Bonito TV (Germany)
  • dB Broadcast (UK)
  • Dega Broadcast Systems (UK)
  • ESPN Star Sports/Fox Sports (Singapore)
  • E to E (UK)
  • Giga-Com (UK)
  • Indira Ghandi National Open University (India)
  • ITV (UK)
  • JVC (Nigeria)
  • National Theatre of Greece (Greece)
  • ORF (Austria)
  • PALS (Turkey)
  • RUV (Iceland)
  • Studios A/S (Denmark)
  • The Hospital Club (UK)
  • The London Studios (UK)
  • TRT (Turkey)
  • TSL (UK)
  • TV Skyline (Germany)
  • University of East Anglia (UK)
  • Westminster Live (UK)
  • WIN Television (Australia)
 

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