Opus - A Balanced DAC

The Opus - A Balanced DAC

Layout Schematic Manual (1.0) Manual (2.0) Parts List

The Opus DAC module is based around the Wolfson's top of-the-line WM8741 DAC chip. It offers I²S and DSD inputs, stereo balanced output, hardware control of DAC options via jumpers, as well as a header for optional software control. The DAC board can also be configured to allow the WM8741 to operate in dual-mono mode (see datasheet for more information).

Separate analog and digital power sections feature National Semiconductor low-drop out (LDO) regulators.

Power supply electrolytic capacitors are Vishay/OSCON (not pictured), output electrolytics capacitors are Elna SilmikII, and resistors are Susumu 0.1% thin film. Please note that the terminal blocks and output capacitors come uninstalled to allow for more flexibility (direct wiring, other output capacitors, etc).

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Ordering Options
Individual Modules
Opus DAC Module (Assembled and Tested)	$75.00 USD
Complete Kits
Opus DAC Kit (Unassembled)	$55.00 USD
PCBs
Opus DAC Board (no parts)	$14.00 USD
Module Combinations
Opus DAC + S/PDIF Receiver Combo [1] DAC Module (Assembled and Tested) [1] S/PDIF (WM8804) Receiver Module (Assembled and Tested) [1] Low-Current Dual Power Supply *Kit*	$175.00 USD
Opus Dual-Mono DAC + S/PDIF Receiver Combo [2] DAC Modules (Assembled and Tested) [1] S/PDIF (WM8804) Receiver Module (Assembled and Tested) [1] Low-Current Dual Power Supply *Kit*	$240.00 USD
Opus DAC + USB Receiver Combo [1] DAC Module (Assembled and Tested) [1] USB Receiver Module (Assembled and Tested) [1] Low-Current Dual Power Supply *Kit*	$175.00 USD
Opus Dual-Mono DAC + USB Receiver Combo [2] DAC Module (Assembled and Tested) [1] USB Receiver Module (Assembled and Tested) [1] Low-Current Dual Power Supply *Kit*	$240.00 USD