DA CONVERTER Owner’s Manual PEAK PEAK NOMINAL NOMINAL SIGNAL LOCK POWER ON OFF SIGNAL 1 2 3 4 5 6 7 8 DA CONVERTER Keep This Manual For Future Reference.
FCC INFORMATION (U.S.A.) 1. IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT! This product, when installed as indicated in the instructions contained in this manual, meets FCC requirements. Modifications not expressly approved by Yamaha may void your authority, granted by the FCC, to use the product. 2. IMPORTANT: When connecting this product to accessories and/or another product use only high quality shielded cables. Cable/s supplied with this product MUST be used. Follow all installation instructions.
i Important Information Please read before operating the DA824 Warnings • Do not subject the DA824 to extreme temperatures, humidity, direct sunlight, or dust, which could be a potential fire or electrical shock hazard. • Do not allow water to enter the DA824 or allow it to become wet. Fire or electrical shock may result. • Connect the power cord only to an AC outlet of the type stated in this Owner’s Manual or as marked on the DA824. Failure to do so is a fire and electrical shock hazard.
ii • Be sure to connect to an appropriate outlet with a protective grounding connection. Improper grounding can result in electrical shock. Cautions • If this device is to be mounted in an EIA-standard rack, leave the back of the rack open and make sure that it is at least 10 cm away from walls or surfaces.
iii Package Contents The DA824 package should contain the following items. Contact your Yamaha dealer if anything is missing. • DA824 DA Converter • Power cord • This manual Trademarks ADAT MultiChannel Optical Digital Interface is a trademark of Alesis Corporation. Tascam Digital Interface is a trademark and Tascam and Teac are registered trademarks of Teac Corporation. Yamaha is a trademark of Yamaha Corporation.
iv Contents Contents 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Welcome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Setting the Maximum Output Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Connecting the Power Cord . . . . . . . . . . . .
Introduction 1 1 Introduction Welcome Thank you for choosing the Yamaha DA824 DA Converter. The DA824 is a high-performance 8-channel digital-to-analog converter, with 24-bit linear digital-to-analog converters and 128-times oversampling providing a typical dynamic range of 110 dB. Optional mini YGDAI (Yamaha General Digital Audio Interface) cards offer a variety of digital input interfaces, with support for all the popular digital audio interconnect formats, including AES/EBU, ADAT, and Tascam TDIF-1.
2 Chapter 2—Touring the DA824 2 Touring the DA824 Front Panel 1 2 34 PEAK PEAK NOMINAL NOMINAL SIGNAL LOCK POWER ON OFF SIGNAL 1 2 3 4 5 6 7 8 DA CONVERTER A PEAK, NOMINAL & SIGNAL indicators These indicators show the signal level of each channel. PEAK—This indicator lights up when the signal level is 3 dB below full-scale output. NOMINAL—This indicator lights up when the signal level is 14 dB below full-scale output.
3 Rear Panel Rear Panel 1 DA CONVERTER MODEL DA824 2 COM 3 4 5 WORD CLOCK OUTPUT (BAL) THRU 75Ω OFF ON IN 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 SLOT 6 7 A COM port This port is for updating the DA824’s internal firmware and is not used in normal operation. B WORD CLOCK THRU connector This BNC connector transmits the wordclock signal received at the WORD CLOCK IN. C WORD CLOCK 75Ω ON/OFF switch This switch is used to terminate the wordclock signal received at the WORD CLOCK IN.
4 Chapter 3—Digital I/O Cards 3 Digital I/O Cards About Digital I/O Cards For digital input, the DA824 uses optional mini YGDAI (Yamaha General Digital Audio Interface) cards, which are available in all the popular digital audio interconnect formats, including AES/EBU, ADAT, and Tascam TDIF-1. The following digital I/O cards are currently available. See the Yamaha Professional Audio Web site at the following address for up-to-date news on mini YGDAI cards:
Installing I/O Cards 5 Installing I/O Cards This section explains how to install mini YGDAI cards in the DA824. 1 Turn off the DA824. 2 Undo the two fixing screws and remove the slot cover, as shown below. CO M TH RU SL OT W OR D CL O CK 7 ON 5Ω OF F IN 8 8 Keep the cover and fixing screws in a safe place for future use. 3 Insert the card between the guide rails and slide it all the way into the slot, as shown below. You may have to push firmly to plug the card into the DA824 connector.
6 Chapter 4—Hookup Examples 4 Hookup Examples In the following hookup examples, the “Digital Audio Device” could be any device with a compatible AES/EBU or ADAT interface, including the following Yamaha products with the necessary I/O cards installed: DME32 Digital Mixing Engine, 02R Digital Recording Console, 03D Digital Mixing Console, 01V Digital Mixing Console, or D24 Digital Multitrack Recorder.
7 AES/EBU Connection with Splitter Cable AES/EBU Connection with Splitter Cable This example shows how both an AD824 and DA824 can be connected to a digital audio device with a single AES/EBU interface by using MY8-AE I/O cards and a custom AES/EBU splitter cable. Pin wiring details for the AES/EBU interface are supplied with each MY8-AE I/O card. The digital audio device is the wordclock master, with the AD824 receiving its wordclock via a BNC connection, the DA824, via its slot input.
8 Chapter 5—Wordclocks 5 Wordclocks About Wordclocks For correct operation and digital-to-analog processing, it is essential that the DA824 is wordclock locked to the digital audio device transmitting the digital audio signals. Normally, the DA824 locks to a wordclock signal derived from the SLOT digital audio inputs, but when a usable wordclock signal is present at the WORD CLOCK IN connector, this is used instead.
Wordclock Termination 9 Wordclock Termination For correct and reliable operation, wordclock signals distributed via BNC cables must be terminated correctly. Termination is typically applied at the last device, although it depends on the distribution method being used. The DA824’s WORD CLOCK 75Ω ON/OFF switch allows the DA824 to be connected in a variety of ways. The following examples show three ways in which wordclock signals can be distributed and how termination should be applied in each case.
10 Appendix Appendix Specifications MY8-AE, MY8-TD 39.69–50.88 kHz MY8-AT 41.013–50.88 kHz Sampling rate DA conversion resolution 24-bit linear, 128-times oversampling Frequency response –3, +1 dB, 20 Hz–20 kHz Dynamic Range1 110 dB (typical) Gain Error ±1 dB @ 1 kHz 0.05%, 20 Hz–20 kHz THD2 0.01% full scale output @ 1 kHz Hum & Noise Level1 –92 dBu (typical) Crosstalk –70 dB between adjacent channels @ 1 kHz Signal Delay 0.
Specifications 11 Analog Output Connection GAIN SW For Use with Nominal Output Level Nominal Max. before clip +24 dB +10 dB (2.45 V) +24 dB (12.28 V) +18 dB +4 dB (1.23 V) +18 dB (6.16 V) +15 dB +1 dB (0.87 V) +15 dB (4.36 V) +4 dBV –10 dBV (0.316 V) +4 dBV (1.58 V) 150 Ω lines OUTPUT 1–81 1. 2. 3. * Actual Source Impedance 600 Ω lines Connector XLR-3-32 type (balanced)2 & TRS phone jack (balanced)3 24-bit 128-times oversampling D/A converters.
12 Appendix Dimensions 30 48 30 274 D: 366.8 355 (33) 13 430 W: 480 88 H: 97.5 67.5 345 67.5 Specifications and external appearance subject to change without notice. For European Model Purchaser/User Information specified in EN55103-1 and EN55103-2.
YAMAHA CORPORATION V554060 R3 1 IP 20 07 08 400 AP Printed in Japan Pro Audio & Digital Musical Instrument Division P.O.
