Features:
- This product is used to replace the computer''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s sound card, plug and play, no need to install a driver,Suitable for customers who are critical of sound quality requirements,Improve the sound quality when listening to songs and watching movies.
- Can be connected to an Android phone and used as an external sound card for the phone(Need mobile phone support)
- Adopt BB company PCM2706 professional-grade USB audio stream processing chip
- Onboard ES9023 decoder output, the latest product of American ESS(Not used PCM2706 internal DAC), Can directly drive the headset, and the sound quality reaches professional level.
- With I2S output, it can be connected to the decoder board with I2S input.
- With digital coaxial output, used to connect other professional decoders
- Dynamic range: 112 dB
- Output amplitude: 2Vrms
Interface introduction:
- USB input(Connect to the computer)
- I2S source code output, pin header 2x6 (MCLK, LRCK, BCK, DATA, GND)
- Coaxial output(Connect other professional decoders)
- 3.5mm headphone jack output(Connect to various models of headphones)
- Coaxial output, jumper to SPDIF, i2s source code output and headphone output to I2S(1 3-pin header on the board)
Introduction to ES9023:
- ES9023 is a 24bit stereo audio digital-to-analog conversion chip from ESS(DAC), The driver op amp with 2Vrms output is integrated in the chip. And using the industry''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s advanced SABRE digital-to-analog conversion technology, this chip sets the best sound quality and high cost performance, making it an ideal choice for digital-to-analog conversion. It can be applied to products such as Blu-ray players, CD/DVD, high-definition set-top boxes, digital TVs or audio receiving devices.
- ES9023 uses patented technology to super stream(Hyperstream) architecture and time-domain jitter elimination technology enable it to achieve jitter-free recording-level sound quality, with a dynamic range of 112dB.
- Because the chip integrates a charge pump to generate negative voltage, ES9023 can directly output 2Vrms with reference to the ground under single power supply, eliminating the coupling capacitor for DC voltage isolation. Moreover, the output amplitude can be set to a level less than 2Vrms through a resistor according to actual needs. Switching machine noise can also be fully suppressed. Dedicated control/status pins can allow easy integration into the system without microcontroller control.
- Under 3.6V power supply, our actual test output can be greater than 2Vrms, and there is no structure of coupling capacitors, no need to bother to find expensive coupling capacitors, and there is no need to worry about audio distortion caused by capacitors.(Usually like this). In addition, in the actual test, we found that 32ohm headphones can also be driven very well, but the output amplitude will be slightly reduced. And for connecting power amplifiers, headphone amplifiers and other circuits, it’s not a problem.
Shipping list:
- Install an acrylic motherboard
- One USB cable
Driver headphone wiring diagram
Coaxial output with red core dual parallel PCM1792 professional decoder
The computer terminal runs foobar2000 professional audio playback software interface
Software download address: http://hifibbs.org/forum.php?mod=viewthread&tid=39&extra=page%3D1
Introduction to each functional interface of the motherboard
Acrylic protection board is installed in the shipment, as shown in the physical picture below(very beautiful)