Lucid ADA8824 User Manual

Lucid ADA8824 User Manual

A/d - d/a platform (adat interface)

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ADA8824
A/D - D/A Platform
(ADAT Interface)
User's Guide

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Summary of Contents for Lucid ADA8824

  • Page 1 ADA8824 A/D - D/A Platform (ADAT Interface) User’s Guide...
  • Page 2: Table Of Contents

    Rev A.0, June 1, 1999 Lucid part number 53ADAT1A00 Specifications subject to change without notice. ©1999 Lucid.. All rights reserved. Lucid is a registered trademark of Symetrix, Inc. Lucid Mention of third-party products is for informational purposes 6408 216th St. SW only and constitutes neither an endorsement nor a recommenda- tion.
  • Page 3: Introduction

    The Lucid ADA8824 (ADAT) Audio Interface is an eight-channel, 24-bit, A/D and D/A converter intended for use with digital audio workstations. [For clarity the ADA8824 (ADAT) will be referred to as the 8824 throughout the rest of this user’s guide.] The 8824 provides ADAT lightpipe connec- tions, eight analog I/O channels, and eight AES/EBU digital I/O channels.
  • Page 4: Operator Safety Summary

    Caution Identifies information that, if not heeded, may cause damage to the Lucid product or other equipment in your system. Warning Identifies information that, if ignored, may be hazardous to your health or that of others.
  • Page 5 There are no user serviceable parts inside the ADA8824. In case of failure, refer all servicing to the factory. Servicing is required when the ADA8824 has been damaged in any way, such as when a power supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
  • Page 6: About The Ada8824 (Adat)

    ADA8824 (ADAT) BOUT THE ECTION In its principal application, the 8824 connects the external world (analog and digital) of your studio with your computer using the ADAT lightpipe multichannel interface. In this setup you will also need a suitable computer (Wintel PC or Apple Macintosh) and a suitable interface card.
  • Page 7: Setup (Connections & Settings)

    & S ECTION ETUP ONNECTIONS ETTINGS This section discusses a multitude of things, all related to getting signals in and out of the 8824 and getting on with using it. ADAT Sync Connections These connectors allow sending and receiving ADAT-specific information between daisy-chained ADAT machines or other hardware capable of sending or receiving ADAT Sync.
  • Page 8 Connect the analog outputs as required in your studio. These connectors deliver a balanced output signal from a simulated grounded center-tap source. For unbalanced use, either float pin 3 at the 8824 (preferred), or if necessary, connect it to pin 1 at the 8824. Digital I/O Connections It is not necessary to connect to any or all of these connectors at any given time.
  • Page 9 Configuration Settings The rear-panel configuration switches determine the initial conditions (power-up) of the 8824. For most applications use Remote mode (set SW1 down). Set SW2 thru SW4 as required by the input selection and clock source. Refer to Table 2. SW5-8 have different functions depending on the mode selection (SW1).
  • Page 10 The 8824 Configuration Application Included with the 8824 is a small application that implements a virtual front panel so you can alter the settings of the unit. If you have any familiarity with Windows or Macintosh applica- tions, you’ll be right at home. Installation On either Wintel or Macintosh platforms, make a separate folder and copy the appropriate file into that folder.
  • Page 11 MIDI Setup MIDI In Port Select the MIDI In port via the dropdown menu. You must have preconfigured the MIDI device via the Control Panel. MIDI Out Port Select the MIDI Out port via the dropdown menu. You must have preconfigured the MIDI device via the Control Panel.
  • Page 12: Front Panel Overview

    RODUCT ESCRIPTION RONT ANEL VERVIEW ECTION SYNC METERING 44.1 kHz ANALOG IN 48 kHz DIGITAL IN 8824 WORD CLK ANALOG OUT TECHNOLOGY AES/EBU DIGITAL OUT 24-BIT I/O ADAT OPTICAL INTERFACE SYNC Window Displays the source of digital audio sync: 44.1kHz internal, 48kHz internal, Word Clock, or AES/EBU digital input (inputs 1-2, 3-4, 5-6, or S/PDIF).
  • Page 13: Rear Panel Overview

    ADAT Sync connectors Two DB-9 female connectors. These connectors accept and deliver ADAT SYNC ADAT Sync signals. ADAT Sync consists of three signals: machine control, ADAT word clock and time code. Include the ADA8824 URATION ADAT OPTICAL MIDI SER’S GUIDE...
  • Page 14: Analog Outputs

    MIDI Input and Output 5-pin female DIN connectors accept or deliver MIDI signals. The ADA8824 (ADAT) uses MIDI for control when not being operated in stand-alone or ADAT MIDI Sync modes. The ADA8824 (ADAT) uses Sysex commands for control. INPUT...
  • Page 15 S/PDIF I NPUT UTPUT RCA female connectors. These connectors accept or deliver S/PDIF digital audio signals. OUT/THRU The S/PDIF input can also be used as an external sync source. LOCK S/P DIF INPUT OUTPUT and O LOCK NPUT UTPUT HROUGH BNC male connectors.
  • Page 16: Using The Ada8824

    8824 SING THE ECTION Overview This section of the manual discusses some technical issues that you’ll need to be familiar with and a few applications scenarios. This information may be useful if you want to get everything you can from the 8824.
  • Page 17 All MIDI control of the 8824 is performed by MIDI Sysex commands. This sequence is composed of the Sysex start byte (F0) followed by the Lucid Manufacturer ID (00 00 5E), followed by the 8824’s ID (58 hex = 88 decimal), and the particular command and data. The structure of each Sysex is as follows (all bytes in hexadecimal): F0 00 00 5E 58 x y <z...
  • Page 18 Set AES Output Source : F0 00 00 5E 58 x 24 z F7 where z = 0 selects ADAT optical input; z = 1 selects analog inputs Set Analog I/O Gain : F0 00 00 5E 58 x 30 z ..
  • Page 19 Professional Mode Consumer Mode Address 44.1k N.I. 44.1k * Not indicated The 8824’s MIDI implementation table may be found in Section 8 of this manual.
  • Page 20: Applications & Configurations

    ONFIGURATIONS ECTION Applications It is impossible to anticipate exactly how you’ll use the ADA8824 (ADAT) in your studio, but we can make a few educated guesses. Digital Audio Workstation In this application, the 8824 may find itself used alone or with accompanying ADAT machines.
  • Page 21: Multitrack Recording

    Multitrack Recording By configuring the 8824 for 8-channel A/D conversion with output on the lightpipe connector, you can use the unit for 24-bit hard disk recording. Depending on your computer hardware, you may or may not be able to record 8 (or more) tracks simultaneously. Experiment first, before you commit yourself to learning this the hard way (with clients present).
  • Page 22: A/D-D/A Converter, No Adat Optical I/O

    A/D - D/A Converter, ADAT Optical I/O In this application, the 8824 operates as a stand-alone eight-channel 24-bit A/D and DIGITAL INPUTS ANALOG INPUTS (AES and S/PDIF) D/A converter. There is no host computer 8 CHANNELS required for audio I/O. Refer to figures at ADAT OPTICAL right.
  • Page 23: Digital I/O To Adat Optical I/O

    Digital I/O to ADAT Optical I/O, Plus Analog Monitoring of Host Outputs In this application, the 8824 takes in four AES/EBU digital signal pairs and delivers DIGITAL INPUTS ANALOG INPUTS (AES and S/PDIF) them to the host computer via the lightpipe connector.
  • Page 24: Syncing Two Units

    Syncing Two Units In this application, two 8824s are slaved together for sixteen channels of 24-bit A/D conversion. Refer to figures below and on the next page. The DIP switch settings shown are for operation in Local mode. Refer to page 7 for a detailed discussion of the 8824’s dip switch settings. The screen from the configuration application shows how to configure the units via computer.
  • Page 25 MASTER REAR DIP SWITCH (LOCAL MODE) SLAVE REAR DIP SWITCH (ALL LOCAL MODE)
  • Page 26: Midi Implementation Chart

    MIDI I MPLEMENTATION HART ECTION Function Transmitted Recognized Remarks Manufacturer ID 00 00 5E hex notation Unit ID hex notation Basic Default Channel Channel Mode Default Messages Altered Note Number True Voice Velocity Note ON Note OFF After Key’s Touch Ch’s Pitch Bender Control...
  • Page 27: Block Diagram

    LOCK IAGRAM ECTION AES/EBU INPUTS ANALOG INPUTS SIGNAL SIGNAL SIGNAL SIGNAL CONFIG ATTENUATORS ATTENUATORS ATTENUATORS ATTENUATORS ADAT OPTICAL SWITCHES INPUT OUTPUT CONVERTERS CONVERTERS CONVERTERS CONVERTERS MICRO CONTROLLER ADAT MIDI ROUTER/ DIGITAL SIGNAL SYNC INPUT MULTIPLEXER PROCESSOR INPUT OUTPUT OUT/THRU SYNC METERING 44.1 kHz ANALOG IN...
  • Page 28: Section 10 Ada8824 (Adat) Specifications

    ADA8824 (ADAT) S PECIFICATIONS ECTION Input/Output Analog Inputs Eight, XLR-female, 20-kilohms line-level balanced bridging Analog Outputs Eight, XLR male, 320-ohms source impedance, balanced Digital Audio I/O AES-3 Input; Four, XLR-female AES-3 Output: Four, XLR-male S/PDIF I/O: Two, RCA female Optical (ADAT):...
  • Page 29 Note The maximum operating ambient temperature is 25 degrees C. In the interest of continuous product improvement, Lucid reserves the right to alter, change, or modify these specifications without prior notice.
  • Page 30: Section 11 Warranty & Service

    In no event will Lucid be liable for any incidental or consequential damages including but not limited to damage for loss of revenue, cost of capital, claims...
  • Page 31: Section 12 Declaration Of Conformity

    ONFORMITY ECTION Declaration of Conformity We, Lucid, a division of Symetrix Inc., 6408 216th St. SW, Mountlake Terrace, Washington, USA, declare under our sole responsibility that the product: ADA8824 A/D - D/A Platform to which this declaration relates, is in conformity with the following standards:...
  • Page 32 Lucid 6408 216th St. SW Mountlake Terrace, WA 98043 USA Tel: 425.778.7728 Fax: 425.778.7727 Email: lucid@lucidaudio.com Website: www.lucidaudio.com...

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