Features
1. Use two TDA1541/TDA1541A DAC (parallel), CS8412/CS8414(come with conversion PCB) receiver IC, and SAA7220 digital filter IC.
2. Output Opamps supports AD797/ NE5534/OPA627.
3. Input signal: Digital audio from CD player, e.g. S/PDIF, Optical (optional), or USB (optional)
4. Output signal: Analog audio signal with high S/N ratio for pre amplifier or amplifier.
5. WIMA MKP capacitors, Nichicon Audio capacitors, and Dale resistors.
6. Built-in seven independent regulation circuits for dedicated power supply to each block.
7. Power requirements: one 9-12V AC, one 15V AC and two 18V AC
8. PCB thickness: 2.5mm and copper 2oz. Lead free
Specifications
1. 16 bit DAC for Hi-Fi Audio
2. S/N can attain 100dB
3. 8x oversampling frequency
4. Dynamic range:
5. 2-3Vpp peak to peak output voltage
6. THD:0.001%
Option
1. Toroidal Power Transformer T20L or R58 R-core transformer
Instruction
1. For coaxial input, input is labeled by "IN" on the board.
2. +5 and SW is used to select either coaxial or optical SP/DIF as input, externally.
3. For output, G is common ground. The label L-OUT and R-OUT is the output for left and right channel, respectively.
4. Power supply: for 9-12V connector, the middle two pins is common AC ground, also the same for the 18-20V connector: for examples:
9-0-0-9 and 18-0-0-18, where 0-0 is shorted.
Pre-Amplifiers
