Finished R2R Decoder AD1865R NOS Double Parallel DAC Decoder

Signal receiving chip: ak4118

Power module: adopts JRC low noise voltage regulator module imported from Japan

the opamp default is 4pcs JRC5532DD. it with gold-plated op amp sockets. allows the user to freely change the op amp, giving the user more experience with a good operational sound.

Signal support format: coaxial support pcm format, up to 24 bits 192khz. I2S supports Philips I2S, xmos interface, Italian interface, etc., Bluetooth module with I2S output, only need to connect BCK LRCK DATA three pins.

   Decoder board technical parameters: Dual AD1865R composed of mono architecture, choose the chip internal op amp. Direct current output with external IV circuit, and lpf circuit, with accurate noise cutoff technology to limit out-of-band noise, with a very dark sound background, use nos way to access digital signals, with the original original taste and completeness to restore the sound Resolutely discarding the external filter chip, in addition to the high-reduction sound, reduces the design cost.

    In addition, the tuning parameters are repeated several times to make the sound more close with vinyl record style, and the low frequency is powerful, the sound are not lose than TDA1541 PCM63 double decoding.