DAC Audio Decoder Board ES9038Q2M Hard Decoding HiFi Coaxial Optical I2S DSD512 Digital Decoder

DAC Audio Decoder Board ES9038Q2M Hard Decoding HiFi Coaxial Optical I2S DSD512 Digital Decoder

Features:
- The DAC S1 audio decoding board supports decoding of I2S, DOP, and DSD digital audio signals output on the Raspberry Pi motherboard pins, and can also decode external coaxial signals through the three buttons on the board.
- It supports 7 audio output methods, including analog audio, coaxial, fiber optic, and I2S, and can individually turn on or off the audio output signal of each interface through the buttons on the board.
- Using original professional level digital audio transceiver chip for TI, supporting up to 216K sampling rate, with ultra-low jitter of coaxial transceiver clock < 50RMS.
- Adopting for ES9038Q2M audio decoding chip and three TI high-end high-speed audio dedicated operational amplifiers OPA1612, fully symmetrical audio I/V channel design, it has extremely high output signal-to-noise ratio and dynamic range, maximizing the restoration of the most authentic sound.
- Adopting a car grade 2U65131 audio dedicated positive and negative dual power management chip for TI, coupled with two high-quality fully magnetic shielding inductors, it can output mV level extremely low noise positive and negative dual power supply to power the I/V conversion amplifier.
- It adopts two programmable digital silicon oscillators for SiTime to provide high-quality clocks for the system, which has ultra-low jitter and extremely low phase noise, and are widely recognized as the most ideal clock device in the audio industry.
- It uses 32-bit high-speed microprocessors for parameter configuration and control of DAC chips, combined with OLED screens, buttons, infrared remote controls, and other peripherals, greatly improves the human-computer interaction experience.

Specification:
Analog audio:
- RCA/headphone 32K - 768K/32Bit
- Frequency bandwidth: 20 - 20KHz
- Output level: 2Vrms
- SNR: 129dB
- THD + N: -120dB

Coaxial:
- PCM: 32K - 192K/24Bit
- DOP: DOP64

Optical:
- PCM: 32K - 192K/24Bit
- DOP: DOP64

I2S:
- PCM: 32K - 768K/32Bit
- DOP: DOP64/DOP128/DOP256
- DSD: DSD64/DSD128/DSD256/DSD512

General:
- Rated voltage: +5V (support for Raspberry Pi mother board or DC socket power supply)
- Rated current: 500mA
- Motherboard size: 56 x 85mm
- PCB material: 4-layer military fiberglass board
- Process: unleaded
- Supported model: for Raspberry Pi 2B/3B/3B+/4B
- Supported player: for Volumio, for Moode, for piCorePlayer, for RuneAudio

DAC parameter setting introduction:
- IN: I2S/DSD/SPDIF; Set and select three input sources: DAC decoding board I2S, DSD, and coaxial 9SPDIF).
- I2S: 3-L/4-L; Set 3-wire I2S (without MCLK) or 4-wire I2S (with MCLK), for Raspberry Pi 2B/3B/3B+ needs to be set to 3-L; for Raspberry Pi 4B can be set to 3-L or 4-L (requires MCLK master clock).
- MCLK: aut/128/256/512; When the I2S setting option is 3-L, set the recovery system master clock (MCLK) to a multiple relationship with the sampling rate FS. Aut is in automatic multiple mode, with 256FS below 192K and 128FS above 192K.
- BIT: 16R/24B/24R/24L/32B; When the IN setting option is I2S, set the bit depth of I2S input/output, where L/R represents left aligned/right aligned format and B represents standard I2S format. (Note: The input and output formats of I2S are consistent.)
  1B; When the IN setting item is DSD, the bit depth of DSD is 1B and cannot be changed.
  16R/24B/24R/24L; When the IN setting option is SPDIF, set the bit depth and format of I2S output.
- FLT: 1/2/3/4/5/6/7; Set the filter type used internally in the ES9038Q2M decoding chip and switch between different tones.
- SPDF: out/off; Turn on or off the coaxial interface output function
- RCA: out/off; Turn on or off the analog audio interface output function
- OPT: out/off; Turn on or off the optical interface output function
- I2S: out/off; Turn on or off the HDMI interface I2S or DSD output function

Package Included:
- 1 x S1 Decoder Board
- 1 x Screw Kit

Note:
- The motherboard for Raspberry Pi and power filter board are not included.