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Summary of Contents for Albalá Ingenieros AAC3008C01
- Page 1 AAC3008C01 QUAD ANALOG AUDIO TO AES/EBU DIGITAL AUDIO CONVERTER Version 1.0 Albalá Ingenieros, S.A. 23 June 2016 - © Albalá Ingenieros S.A. - All rights reserved Medea, 4 - 28037 Madrid - Spain...
- Page 2 AAC3008C01...
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Page 3: Table Of Contents
4.2.4.2. Operation n Manual Mode ..................21 4.3. Description of the processing unit ..................21 4.4. Module remote control and supervision ................22 4.4.1. Details of the AAC3008C01 registers ................23 5. GLOSSARY ........................27 6. REGULATIONS ........................29 7. VERSIONS ......................... 31... - Page 4 AAC3008C01...
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Page 5: Description
The AAC3008C01 provides eight analog audio inputs that are coded into four AES/EBU digital audio data streams. The module implements an internal matrix such that each digital output can be the sum of one or all of the inputs. Furthermore, each input signal can be inverted in phase and gained up or down in the digital domain from +24 to -39.5 dB (mute) with a resolution of 0.5 dB. -
Page 6: Features
Albalá Ingenieros | Manual AAC3008C01 date and time information for further analysis. The AAC3008C01 is a TL3000 terminal line module and can be housed in a three rack unit (3 RU) UR3000 mounting frame or a 1 RU UR3100 mounting frame. 1.2. Features •... - Page 7 Albalá Ingenieros | Manual AAC3008C01 used for this purpose then up to 12 modules can be installed. • One UR3100 mounting frame can house up to three AAC3008C01 modules. • Low power.
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Page 8: Block Diagram
Albalá Ingenieros | Manual AAC3008C01 1.3. Block diagram... -
Page 9: Specifications
Albalá Ingenieros | Manual AAC3008C01 2. SPECIFICATIONS Analog audio signal input Connector Plug-in terminal, 3.81 mm pitch Impedance >24 kΩ Type Active balanced Number of inputs 4 stereo pairs Common mode rejection ratio (CMRR): at 50 Hz >75 dB at 20 kHz >75 dB... - Page 10 Albalá Ingenieros | Manual AAC3008C01 Encoding and electrical characteristics According to EBU Tech. 3250-E/AES3 standard Sampling rate 32 kHz, 44.1 kHz, 48 kHz, 64 kHz, 88.2 kHz and 96 kHz Number of outputs Signal specifications with external reference: Jitter <300 ps Locking range ±40 ppm...
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Page 11: Installation
ELECTROSTATIC DISCHARGE. Always use antistatic bags clearly identified with a high degree of shielding for storage and transportation. The AAC3008C01 module is composed of two parts: one AAC3008P01 main board and one AAC3008P02 rear board. Both parts must be installed in a UR3000 or UR3100 mounting frame following the instructions in the corresponding section of this chapter. -
Page 12: Environmental Considerations
(LOOP) leaves the input in a high impedance state. 3.6. Installing the module in the mounting frame The steps needed to install the AAC3008C01 module with the rear board in the mounting frame are: 1 - Disconnect all power cords from the power supplies of the mounting frame. - Page 13 INSTALLATION section of this manual. 6 - Insert the AAC3008P01 board (main board of the AAC3008C01 module) into the front of the mounting frame. The edges of the card slide into two plastic guides inside the mounting frame.
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Page 14: Interconnection
The following figure shows the AAC3008C01 module rear board connector layout. Rear view of the AAC3008C01 The AAC3008C01 module provides eight analog audio inputs (STRM 1 INA(L), STRM 1 INB(R), STRM 2 INA(L), STRM 2 INB(R), STRM 3 INA(L), STRM 3 INB(R), STRM 4 INA(L), STRM 4 INB(R)), four AES/EBU digital audio outputs (STREAM 1 OUT, STREAM 2 OUT, STREAM 3 OUT, STREAM 4 OUT), two inputs for external reference signals (AES11 REF. -
Page 15: Analog Audio Connections
It should be noted that the twisted pair cabling used for the loop-through has a high-pass frequency response and the maximum number of AAC3008C01 modules that can be cascaded is ten. If one of the outputs using twisted pair cabling needs conversion to coaxial cabling as per AES3id levels then a simple adapter can be built using the following figure. - Page 16 Albalá Ingenieros | Manual AAC3008C01 AAC3008C01...
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Page 17: Operation
Albalá Ingenieros | Manual AAC3008C01 4. OPERATION This section describes the significance of the front panel indicators of the AAC3008C01 module and their remote control and monitoring ability. 4.1. Front panel description The appearance of the front panel and the elements it contains are shown in the following illustration. -
Page 18: Functional Description
4.2. Functional description 4.2.1. Operation in 20 or 24 bits The AAC3008C01 can deliver an output stream with the full 24 bits provided by its A/D converters or it can provide an output with the 20 most significant bits. The module comes from the factory programmed for 20 bit operation. -
Page 19: Normal And Silence Operation
4.2.3. Description of the delay line The AAC3008C01 can provide an adjustable delay for each of the four digital audio output streams. The delay is adjustable in steps of one sample and is set using the control software. -
Page 20: Selection Of The Sampling Frequency
32 kHz, 44.1 kHz, 48 kHz, 64 kHz, 88.2 kHz and 96 kHz. The PLL of the AAC3008C01 will not be able to lock to any digital audio reference signals with sampling rates other than the standard ones listed, and in such cases the corresponding REFERENCE LED will blink. -
Page 21: Operation N Manual Mode
4.3. Description of the processing unit The AAC3008C01 includes an audio signal processing unit that provides a matrix for connection between the eight inputs and eight outputs with independent summation and level adjustments for each input. The following graphic displays a simplified equivalent of this processing block for one input. -
Page 22: Module Remote Control And Supervision
Albalá Ingenieros | Manual AAC3008C01 4.4. Module remote control and supervision The AAC3008C01 can optionally be remotely controlled/supervised. In order to perform remote configuration and supervision of the module an optional TL3000 family remote communications controller must be installed in the mounting frame. -
Page 23: Details Of The Aac3008C01 Registers
- Supervision of the status of the audio signals. 4.4.1. Details of the AAC3008C01 registers The AAC3008C01 module provides control and status registers that can be read and written by means of specific commands described in the communication control module user manuals. - Page 24 Albalá Ingenieros | Manual AAC3008C01 GAIN_AES2_A 0x0B 0x7F Allows adjusting the gain of AES2 channel A = 24-x/2 dB PHASE_AES2_A 0x0B 0x80 Allows changing the phase of AES2 channel A 0=Normal, 1=Inverted GAIN_AES2_B 0x0C 0x7F Allows adjusting the gain of AES2 channel B...
- Page 25 Albalá Ingenieros | Manual AAC3008C01 Name snmp trap Description DET_525 0x01 0x03 525 lines signal detected 1=Yes, Other=No DET_625 0x01 0x03 625 lines signal detected 2=Yes, Other=No AES_DET_FREQ 0x01 0x1C Indicates the AES reference detected frequency 0=32 kHz, 1=44.1 kHz, 2=48 kHz, 3=64 kHz, 4=88.2 kHz, 5=96 kHz, 6=Other,...
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Page 27: Glossary
Albalá Ingenieros | Manual AAC3008C01 5. GLOSSARY AES/EBU This acronym covers the combined AES and EBU standard for transmission of digital audio. The standard defines a serial interface known as AES3 as per AES, EBU 3250-E as per EBU or ITU-R BS.647-2 as per ITU. The interface originally transmitted two channels (one pair) with PCM coding with a bit depth of 20 or 24 bit and a sampling frequency between 32 kHz and 192 kHz. - Page 28 Albalá Ingenieros | Manual AAC3008C01 AAC3008C01...
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Page 29: Regulations
Albalá Ingenieros | Manual AAC3008C01 6. REGULATIONS AES11 (2009) AES recommended practice for digital audio engineering - Synchronization of digital audio equipment in studio operations. AES3 (2003) AES Recommended practice for digital audio engineering - Serial transmission format for two-channel linearly represented digital audio data. - Page 30 Albalá Ingenieros | Manual AAC3008C01 AAC3008C01...
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Page 31: Versions
Albalá Ingenieros | Manual AAC3008C01 7. VERSIONS Ver. Date Description 12-11-2014 Preliminary Version 23-06-2016 First version... - Page 32 Albalá Ingenieros, S.A. Medea, 4 - 28037 Madrid Spain +34 913274453 www.albalaing.com info@albalaing.com...
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