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Interface / DAC Board ES9038Q2M I2S vers SPDIF / RCA
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interface / DAC board
ES9038Q2M I2S vers SPDIF / RCA
This interface module takes an I2S signal as input and outputs it as SPDIF on a Toslink optical or coaxial connector, or as analog on a stereo RCA. The card is also equipped with a DAC with its ESS ES9038Q2M chip, allowing it to convert the signal from digital to analog for this last output, while promoting a precise and clear sound reproduction. The I2S input of the module supports high resolution streams up to PCM 32bit 384kHz and DSD512. The SPDIF outputs support PCM sampling rates up to 24bit 192kHz as well as DSD DoP up to DSD128 for coaxial and DSD64 for optical.
Jumper settings
The module features different jumpers that can be used to make certain settings regarding output formats, filters and volume control. The tables below detail the different possibilities.
| COAXIAL / OPTICAL OUTPUT FORMAT SETTING | |
|---|---|
| DoP output | J1 not short |
| PCM output | J1 short |
| LEFT AND RIGHT CHANNEL INVERSION FOR DSD INPUT ON COAXIAL / OPTICAL OUTPUTS | |
|---|---|
| DSD_L and DSD_R not inverted | OP1 not short |
| DSD_L and DSD_R inverted | OP1 short |
| FILTERs SETTINGs | |
|---|---|
| Apodizing fast roll-off filter | J3, J4, J5, J6 shorts |
| Brick wall filter | J3 not short, J4 short |
| Corrected minimum phase fast roll-off filter | J3 not short, J5 short |
| Minimum phase slow roll-off filter | J3 not short, J6 short |
| Minimum phase fast roll-off filter | J3 short, J4 short |
| Linear phase slow roll-off filter | J3 short, J5 short |
| Linear phase fast roll-off filter | J3 short, J6 short |
| Volume control | |
|---|---|
| Silent | ENB-GND short |
| Max volume, Can be connected to an external potentiometer | ENA-ENB short |
Technical characteristics
| Specifications | |
|---|---|
| Product type | Interface and DAC board |
| Input | I2S |
| Outputs | 1* Optical Toslink 1* Coaxial 1* Stereo RCA |
| DAC chip | ESS ES9038Q2M |
| OPA | 1* NE5532P (DIP8) |
| Voltage regulator | 1* L7805C |
| General | |
|---|---|
| Tension d'alimentation | +/-12VDC |
| Dimensions (with connectors) | 86*81.2mm |
| Mouting holes spacing | 79*48mm |
| Input | I2S |
| Output | RCA |
| Output | Optical Toslink |
| Output | Coaxial SPDIF |
| DAC / ADC Chip | ES9038Q2M |
| Max sampling rate | DSD512 |
| Max sampling rate | 384kHz |
| Interface chip | NC |
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