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Lavry AD122-96 MX Operation Manual

Other manuals for AD122-96 MX: Operation Manual
Manual is about: 96kHz Mastering Quality Analog to Digital Converter

Summary of AD122-96 MX

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    Model ad122-96 mx master analog to digital converter operations manual.

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    Lavry engineering, inc. P.O. Box 4602 rolling bay, wa 98061 (360)598-9757 http://www.Lavryengineering.Com email: techsupport@lavryengineering.Com revision 1.0 march 1 2013.

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    Ad122-96 mx operations manual mx preface the mx is our 5 th generation gold series analog to digital converter. The mx provides the same 127db dynamic range (without a weighing) as the mkiii model, and consistently clean performance over the entire audio frequency range. High quality clocking circui...

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    Ad122-96 mx operations manual this page left blank. Intentionally..

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    Ad122-96 mx operations manual 1 limited warranty subject to the conditions set forth below, for one year after the original purchase date of the product, lavry engineering will repair the product free of charge in the united states in the event of a defect in materials or workmanship. Lavry engineer...

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    Ad122-96 mx operations manual 2 table of contents limited warranty ................................................................................. 1 part i introduction .......................................................................................... 3 operating instructions ................

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    Ad122-96 mx operations manual 3 part i: introduction the model ad122-96 mx master analog to digital converter receives analog input signals at the left and right analog input channels. The converter can receive balanced or unbalanced analog input signals. Individual left and right analog gain adjust...

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    Ad122-96 mx operations manual 4 operating instructions operation of the model ad122-96 mx master analog to digital converter requires the use of five push button switches located on the front panel. The liquid crystal display is organized for a quick and intuitive operator interface. The unit featur...

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    Ad122-96 mx operations manual 5 main screen the main screen is used for selecting the a to d clock source and output word length parameters. The top line controls the a to d clock source: 44.1khz internal crystal 24 bits wl abc:off nsoff when setting for internal clock operation, choose sample rate ...

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    Ad122-96 mx operations manual 6 word length and α coustic β it correction™ the bottom line controls word length and α coustic β it correction™ parameters: 44.1khz internal crystal 20 bit wl abc: hpdf ns2 setting word length: the selection of word length (16 to 24 bits) sets the digital output word l...

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    Ad122-96 mx operations manual 7 audio control screen soft saturation off 0 dc removal: on +polarity the user may activate the soft saturation feature by altering the setting after soft saturation on the top line from “ off ” to “ +3db ” or “ +6db ” . Soft saturation settings are not stored in ram pr...

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    Ad122-96 mx operations manual 8 bar-graph & display screen fine: off 20 meter: -00 0 peak/hold off display:3 bar-graph settings: fine: off sets the bar graph display (led's) for normal audio monitoring. Setting to fine: on 20 activates the reference meter bridge function, for fine-tuning of signal l...

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    Ad122-96 mx operations manual 9 warm-up and calibration the recommended warm up time is 15 minutes. The ad122-96mx feature self-calibration for consistent long-term accuracy. A complete calibration cycle (about 5 seconds in duration) is activated at power on. A calibration cycle may be initiated by ...

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    Ad122-96 mx operations manual 10 hardware interconnections analog inputs are applied to the xlr connectors marked as left analog input and right analog input. The input signals can be balanced or unbalanced. The converter power line signal rejection is very high (120db common mode rejection) but use...

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    Ad122-96 mx operations manual 11 part ii: specifications analog inputs: the analog signal can be amplified by 0-12db utilizing the front panel screw adjust trim pots. Full- scale signal with 0db gain is 24dbu, (full-scale signal with 12db gain is 12dbu). Input impedance over 0-100 khz: greater than ...

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    Ad122-96 mx appendix i 12 appendix i: αβc α coustic β it correction™ high quality digital audio sound often incorporates long words (many bits). Both high-resolution a/d converters (22 bits or more) and signal processing equipment (digital mixers, equalizers, reverb and more) generate longer words t...

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    Ad122-96 mx appendix i 13 dither have been explained by s. P. Lipshitz and j. Vanderkooy of the university of waterloo. Additional publications by m. Gerzon, p. G. Craven, j. R. Stuart and j. R. Wilson (all from the united kingdom) and j. Goodwin (from the u.S.A.) shed light on this complex subject....

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    Ad122-96 mx appendix i 14 figure 5 shows α coustic β it correction™ (high pass, ns2) applied to a 24 bit input, reducing to 16, 18, 20, and 22 bit output widths. Notice that there is no noise modulation present. Figure 6 shows the effect of high-pass triangular dither only. The more coherent data in...

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    Ad122-96 mx appendix i 15 noise-shaping curves fig. 11- 1khz input signal -100 db flat dither, with multiple noise-shapers shown figure 11 compares flat dither with ns2, ns3, and ns4 noise- shaping curves. Note the increasing aggressiveness of the curves, with the pronounced dip at 4khz and in the 1...

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    Ad122-96 mx appendix ii 16 appendix ii: ad122-96 mx input considerations achieving 20 or more bits of resolution places a heavy demand on the linearity and noise of analog signals prior to the a/d conversion. Linearity: linearity problems (typically associated with larger signals) should be avoided ...

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    Ad122-96 mx appendix ii 17 note: much information is available regarding proper shielding. The well known book "grounding and shielding in instrumentation" by ralph morrison provides an excellent explanation of the subject and points out clearly that the floating shield connection is the correct con...

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    Ad122-96 mx appendix iii 18 appendix iii: ad122-96 mx soft saturation the soft saturation feature provides a digital emulation of an ideal magnetic tape saturation characteristic. The three available settings are: 1. Soft saturation off: yields normal converter operation (see lower curve voff). 2. S...

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    Ad122-96 mx appendix iii 19 below are time domain plots for the +3db setting (left plot) and +6db setting (right plot). Each plot shows the transformation of two input signals (dotted lines) to two output signals (solid lines). The settings provide different tradeoffs between gain and "peak signal d...

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    Ad122-96 mx appendix iv 20 appendix iv: viewing noise floor on ad122-96 mx display the simplest form of random noise is "white noise". White noise is bounded between two limits. The probability of occurrence for any amplitude value between the two limits (boundaries) is equal; thus, it is also named...

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    Ad122-96 mx appendix iv 21 such measurement and calculation may aid in evaluating the noise of a driver device, or a series of devices. The distribution due to addition of gaussian signals is still gaussian. While the 8db "translation factor" is true for gaussian noise, it does not hold true for non...