The DDA-104 is a 1 input, 4 output AES/EBU digital audio distribution amplifier for two channel stereo digital audio signals.
The DDA-104 features transformer coupled inputs and outputs to improve common mode rejection over longer transmission line
lengths. In addition, a PLL (Phase Locked Loop) based receiver facilitates clock recovery and regeneration, allowing a reclocked
data stream to be generated at each of the 4 independent outputs. LED indicators on the front panel allow for convenient
determination of the incoming sampling rate of the digital audio signal. A separate indicator LED is provided for each of the
standard sampling rates of 32 kHz, 44.1 kHz and 48 kHz. Additionally, a signal present or LOCK status LED will be illuminated in the
presence of an AES/EBU signal at the input connector. Inputs and outputs are 3 pin XLR connectors as per the AES specification
and are located on the rear panel.
DDA-104 Specifications
| Power Requirements | 115 VAC, 60 Hz or 230 VAC 50 Hz, 5W |
|---|
| Number of Inputs | 1 |
|---|---|
| Input Connector | XLR-3F |
| Input Impedance | 110 Ohms, transformer coupled |
| Input Signal Level | 0 to 5 volts differential, as per RS-422 |
| Input Cable Length | 300 meters maximum |
| Number of Outputs | 4 |
|---|---|
| Output Connectors | XLR-3M x 4 |
| Output Impedance | 110 Ohms, transformer coupled |
| Output Signal Level | 0 to 5 volts differential, as per RS-422 |
| Output Cable Length | 200 Meters |
| D2A-1 | 8.1 W x 1.9 H x 5.1 D |
|---|
| DDA-104 | Stand alone Table Top Version |
| DDA-104/R1 | 1 Unit Rack Mounted in 1 RU Frame. Unit takes 1/2 of the rack frame |
| DDA-104/R2 | 2 Units Rack Mounted in 1 RU Frame |
| DDA-104/A | Assembly unit only. Ordered for existing Frames |
| DDA-104/M | Manual |
| PH-3/FR | Phase 3 Rack Frame with no Products Installed |
| PH-3/BF | Phase 3 Blank Front Panel plate |
| PH-3/BR | Phase 3 Blank Rear Panel Plate |
| PH-3/DB | Phase 3 Under the Desk Mounting Bracket |
