Bo Mạch Giải Mã Âm Thanh I2S Pcm5122 Cho Raspberry

1. Upgrade the DAC chip, adopt the more advanced pcm5122 chip of BB company (which has been acquired by TI company), adopt I2S interface, and adjust the volume and audio parameters through I2C interface; support 16 to 32-bit audio data format; distortion and dynamic are very ideal, support high 384khz sampling rate, dynamic range 112dB, distortion - 93dB. For soft up or down ramp and analog squelch with 120 dB squelch signal-to-noise ratio (SNR) running without popping.
2. Pcm5122 is also integrated with negative charge pump, and the output does not need DC isolation; 2.1 VRMs grounding center output; very good ability to suppress out of band noise. By supporting loads as low as 1K Ω, the pcm510xa can drive multiple parallel products. (that is, multiple amplifiers are used at the same time).
3. The output port adopts gold-plated RCV double terminals and gold-plated 3.5mm earphone holder
4. The isolated power supply is designed to isolate the for raspberry Pai power supply from the DAC part of the independent power supply, and the magnetic beads are used to share the ground without interference with each other, so as to get rid of the current sound
5. It can be used by directly inserting the expansion board without welding, and it adopts I2S interface to directly decode digital to analog, and non USB interface DAC e,
1. Add two-color led to provide status display, red light is DAC power indicator (power is normally on), and green light is DAC working status light (on when decoding, off when stopping or not working), so as to better understand the working condition of DAC
2. It is perfectly compatible with the official PI hat size of raspberry school. The PCB board adopts high gold plating process and arc wiring (high-end hifi DAC adopts arc-shaped wiring), so as to better ensure the signal impedance continuity and reduce signal reflection and refraction.
3. Good sound depends on the real materials. The analog audio part uses hifi grade high-end DAC's fever level resistor
4. Provide infrared receiver interface (use gpio26, users can disconnect jumper JP2 when they don't want to use infrared)
color: blue
Material: metal + glue
Package Contents:1 x chip
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1