PCM1794 DAC decoder I2S input 24bit 192K support MONO parallel mode for Audio digital-to-analog conversion decoding |

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2021 new version PCM1794 DAC decoder I2S input 24 192 support MONO parallel mode

The standard version of the op amp uses NJM2068D*2+NJM4556AD*1

The upgraded version of the op amp uses LME49720NA*2+LM4562NA*1

The I2S input port of this board supports I2S format LJ (left justified) format RJ (right justified) signal input; supports 16-24bit 32-192K!

This board supports setting to stereo mode or mono MONO mode (MONO mode can be set to left or right channel) mono MONO mode is equivalent to the parallel mode of other DACs! The dual-channel mode output of this board is RCA single-ended output; the MONO mode output is differential output (balanced output). Two channels of MONO mode need to buy two boards!

The data format and the setting method of mono mode are shown in the following table:

I2S interface definition:

1 NC (not connected); 2 GND; 3 DATA; 4 BCK; 5 MCLK; 6 LRCK

Electrical characteristics:

PCB size: 10cm*8.3cm; the center length and width of the screw hole: 9.357cm*7.396cm

Power supply voltage: the analog circuit part of the DC DC plus or minus 15V (note that the DC dual 15V input, wrong AC or wire sequence connection will cause permanent damage to the circuit!) DAC chip power supply part AC/DC7.5-10V AC or DC can be !

Since the analog part of the board is powered by dual DC inputs, a rectifier, filter, and stabilized power supply is required!

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