LJM-MINIUSBDAC2 Mini USB Decoder Sound Card Support Mobile Phone OTG +MIC Amp
USB input. Use a normal USB extension cable. Or plug it directly into the USB port of the motherboard
Output signal Dedicated headphone output interface. With headphone amplifier function. No output coupling capacitors.
Line signal output mode, the output has a coupling capacitor, connected to the pre-stage or power amplifier.
MIC microphone input socket. A normal microphone can be connected.
USB direct power supply can be switched. Or an external linear AC power supply. Voltage range AC 7- 15V.
Support 16BIT, 44-48K sampling rate, the performance is better than PCM 27XX series.
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It has a dedicated output for headphones. Using MOSFET output inside the chip
It uses a suspended ground wire. So there is no output capacitor. Connect headphones for good bass.
And its output current capability is very strong. Can drive almost any headset. No headphone amplifier required.
It is recommended to use AC9-0 to switch to external power mode. There will be a big improvement.
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This DAC supports 16-bit 44K or 48K digital sampling.
Personally think that is enough. I also have many chips with 24-bit 192K or 384K digital sampling. But there is no difference and meaning in practical application.
CD discs are also 16-bit 44K samples. And no one thinks CDs don't sound good enough.
Best value for USBDAC. and meaning lies in
It can use an external linear AC9-0 power supply. Plus ONSEMI 7805 voltage regulator IC. The same pure DC voltage as the battery can be obtained.
A computer host can be avoided. or cell phone. The noise generated by the internal switching power supply of the notebook computer.
A better signal-to-noise ratio can be achieved with an external power supply.
If you compare the parameters of the chip alone. Then the metrics of the integrated sound card are no worse than any external DAC in the world.
The integrated sound card mainly has no way to use an external regulated power supply. So MINI USBDAC recommends using external power supply mode. Jumpers can be used to jump to external power mode.
will have the best effect.
Package
1pc Mini USB Decoder Sound Card
