ADC ADDC1 manuals

34 pages701.43 Kb

Benchmark ADC1 Instruction Manual
- 2-Channel 24-bit 192-kHz Audio Analog-to-Digital Converter
- 2Federal Communications Commission (FCC) Notice (U.S. Only)
- Safety Information
3Contents
4Overview
6Features
7Connections
- Balanced Analog Line Inputs
  - To adapt to unbalanced sources
- Clock Reference Input
- 8Digital Outputs
  - Main Outputs
  - Aux Output
- AES/EBU XLR Output
- Optical Output
  - AES/EBU Optical Output Mode
  - ADAT Optical Output Mode
  - ADAT S/MUX2 Optical Output Mode
  - ADAT S/MUX4 Optical Output Mode:
- 9SPDIF/AES BNC Main and Aux Outputs
  - Main BNC Output
  - Aux Output
- 10Word Clock Reference Output
- AC Power Entry Connector
- Fuse Holder
11Operation
- Mode Switch and Display
  - To program the conversion mode
- Programming the Outputs
- Locking to an External Clock Source
  - To synchronize with an external clock source
- 12Selecting a Fixed Frequency Using the Internal Clock Source
  - To select a fixed sample frequency on the Main Outputs
- Reading Sample Rates off of the Mode Display
- 13Programming the Aux Output
  - To program the Aux Output
- ADAT or AES/EBU on the Optical Output
  - To select between ADAT or AES/EBU on the Optical Output
- Resetting the ADC1 to Factory Default Settings
  - To reset the ADC1 to Factory Default settings
- Meter Display
  - To select the meter scale and peak hold function
- 14Adjusting Input Gain
- First Stage Gain
  - To select the first stage gain
- Second Stage Gain Controls
  - To use the Gain Control Knob to adjust second stage gain
  - To use the Gain Calibration Trimmer to adjust second stage gain
- 15Rack Mounting
16Using ADAT S/MUX
- Proper S/MUX Identification is a Must
- S/MUX Must be Decoded Before Digital Processing
- Sample Rate is the Key that Controls S/MUX
- S/MUX should not be used for Sample Rate Conversion
17UltraLock What is It?
- 18How does conversion clock jitter degrade converter performance?
- Put UltraLock converters to the test
- 19Is it possible to eliminate all of the effects of jitter in an entire digital audio system?
- What UltraLock converters cannot do
20Performance
- Frequency Response
26 Specifications
- Analog Audio Inputs
- Clock Reference Input
- Worldclock Reference Output
- 27Digital Audio Outputs
- 28Audio Performance
- 29Group Delay (Latency)
- LED Status Indicators
- 30AC Power Requirements
- Dimensions
- Weight
32Warranty Information
- Benchmark 1 Year Warranty
- The Benchmark 1 Year Warranty
  - Benchmark Extended Warranty
- The Benchmark Extended 5* Year Warranty
- The Benchmarks Extended 2** Year International Warranty
33Notes on Warranty Repairs