ADC ADDC1 instruction manual Operation, Mode Switch and Display, Programming the Outputs

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Operation

Mode Display

Meter Switch

Left

First Stage Gain

 

 

Mode Switch

Meter Display

Right

First Stage Gain

 

 

Mode Switch and Display

The ADC1 can be programmed to function in a variety of conversion modes, including sample rates, bit depths, and output formats, using internal and/or external clock sources. This programming is all done through the Mode Switch. The Mode Display shows the selected mode in a concise format.

The Mode Switch is a momentary toggle switch. There are two ways of operating the mode switch:

1.Press

2.Press and Hold

Pressing the Mode Switch momentarily and then releasing it results in a particular change to the ADC1 conversion mode, while pressing and holding the switch results in a different change.

To program the conversion mode

•Press the Mode Switch up repeatedly to cycle through the clock source and sample rate options for the Main Outputs.

•Press the Mode Switch down repeatedly to to cycle through the sample rate and bit depth options for the Aux Output.

ADC1 Instruction Manual

Left Gain

 

 

 

Left

 

Variable/Calibrated

Left Gain

Preset

Gain Switch

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Right Gain

Right

 

Variable/Calibrated

Right Gain

Preset

Gain Switch

 

 

 

•Press and hold the Mode Switch down for approximately 3 seconds to switch between AES/EBU and ADAT mode for the Optical Output.

•Press and hold the Mode Switch up for approximately 3 seconds to reset the ADC1 to Factory Default settings.

Details about all of these actions follow.

Programming the Outputs

Pressing up repeatedly on the mode switch cycles through the clock source and sample rate options for the Main Outputs. The Main Outputs can be set to operate at a fixed frequency using the internal clock source, or they can be set to follow and lock to an external clock source.

Locking to an External Clock Source

The ADC1 can sync to a variety of external clock sources, including Word Clock, Super Clock, AES, and SPDIF. Once the ADC1 acquires sync, it will perform conversion at the sample rate of the external clock.

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Contents Channel 24-bit 192-kHz Audio Analog-to-Digital Converter Benchmark ADC1Federal Communications Commission FCC Notice Only Safety InformationContents Overview Page Features To adapt to unbalanced sources ConnectionsBalanced Analog Line Inputs Clock Reference InputOptical Output Digital OutputsAES/EBU XLR Output SPDIF/AES BNC Main and Aux Outputs Adat Optical Output ModeAdat S/MUX2 Optical Output Mode Adat S/MUX4 Optical Output ModeFuse Holder AC Power Entry ConnectorWord Clock Reference Output Programming the Outputs Mode Switch and DisplayTo program the conversion mode OperationTo select a fixed sample frequency on the Main Outputs Selecting a Fixed Frequency Using the Internal Clock SourceReading Sample Rates off of the Mode Display To synchronize with an external clock sourceMeter Display Resetting the ADC1 to Factory Default SettingsProgramming the Aux Output Adat or AES/EBU on the Optical OutputSecond Stage Gain Controls Adjusting Input GainFirst Stage Gain Rack Mounting MUX should not be used for Sample Rate Conversion Using Adat S/MUXProper S/MUX Identification is a Must Sample Rate is the Key that Controls S/MUXUltraLock … What is It? Put UltraLock converters to the test Problem #1What UltraLock converters cannot do Frequency Response PerformanceInter-Channel Phase Response THD+N vs. Level, 1 KHz KHz LPF unweighted32K B-H FFT, Idle Channel Noise 32K B-H FFT, -3 dBFS, 1 KHz 32K B-H FFT, -3 dBFS, 10 KHz Worldclock Reference Output SpecificationsAnalog Audio Inputs Digital Audio Outputs Audio Performance LED Status Indicators Group Delay LatencyWeight AC Power RequirementsDimensions Page Benchmark 1 Year Warranty Warranty InformationBenchmark Extended Warranty Benchmark Extended 5* Year WarrantyBenchmark Media Systems, Inc
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